./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eae29037f39f72e492ffc0d4d80667eddad5a4a3f1ba42f69f0f22dd69021a00 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 19:35:48,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:35:48,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:35:48,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:35:48,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:35:48,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:35:48,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:35:48,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:35:48,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:35:48,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:35:48,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:35:48,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:35:48,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:35:48,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:35:48,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:35:48,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:35:48,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:35:48,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:35:48,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:35:48,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:35:48,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:35:48,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:35:48,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:35:48,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:35:48,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:35:48,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:35:48,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:35:48,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:35:48,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:35:48,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:35:48,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:35:48,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:35:48,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:35:48,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:35:48,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:35:48,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:35:48,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:35:48,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:35:48,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:35:48,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:35:48,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:35:48,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 19:35:48,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:35:48,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:35:48,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:35:48,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:35:48,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:35:48,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:35:48,743 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:35:48,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:35:48,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:35:48,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:35:48,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:35:48,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:35:48,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:35:48,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:35:48,747 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:35:48,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:35:48,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:35:48,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:35:48,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:35:48,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:35:48,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:35:48,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:35:48,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:35:48,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:35:48,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:35:48,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:35:48,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:35:48,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:35:48,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:35:48,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eae29037f39f72e492ffc0d4d80667eddad5a4a3f1ba42f69f0f22dd69021a00 [2021-10-21 19:35:49,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:35:49,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:35:49,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:35:49,221 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:35:49,222 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:35:49,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c [2021-10-21 19:35:49,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/data/f62e82dee/59a08fab31304d51b6934bfe78ab7172/FLAGbb1dd9064 [2021-10-21 19:35:49,858 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:35:49,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-1.c [2021-10-21 19:35:49,867 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/data/f62e82dee/59a08fab31304d51b6934bfe78ab7172/FLAGbb1dd9064 [2021-10-21 19:35:50,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/data/f62e82dee/59a08fab31304d51b6934bfe78ab7172 [2021-10-21 19:35:50,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:35:50,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:35:50,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:50,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:35:50,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:35:50,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173b2b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50, skipping insertion in model container [2021-10-21 19:35:50,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:35:50,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:35:50,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:50,516 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:35:50,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:50,573 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:35:50,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50 WrapperNode [2021-10-21 19:35:50,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:50,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:35:50,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:35:50,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:35:50,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:35:50,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:35:50,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:35:50,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:35:50,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:35:50,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:35:50,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:35:50,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:35:50,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (1/1) ... [2021-10-21 19:35:50,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:35:50,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:35:50,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:35:50,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:35:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:35:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:35:51,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:35:51,101 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:35:51,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:51 BoogieIcfgContainer [2021-10-21 19:35:51,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:35:51,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:35:51,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:35:51,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:35:51,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:35:50" (1/3) ... [2021-10-21 19:35:51,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1410db7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:35:51, skipping insertion in model container [2021-10-21 19:35:51,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:50" (2/3) ... [2021-10-21 19:35:51,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1410db7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:35:51, skipping insertion in model container [2021-10-21 19:35:51,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:51" (3/3) ... [2021-10-21 19:35:51,128 INFO L111 eAbstractionObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-1.c [2021-10-21 19:35:51,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:35:51,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-21 19:35:51,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:35:51,211 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:35:51,212 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-10-21 19:35:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 50 states have (on average 1.94) internal successors, (97), 86 states have internal predecessors, (97), 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) [2021-10-21 19:35:51,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:35:51,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:51,243 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:35:51,244 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)] === [2021-10-21 19:35:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:51,252 INFO L82 PathProgramCache]: Analyzing trace with hash 957669, now seen corresponding path program 1 times [2021-10-21 19:35:51,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:51,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76895350] [2021-10-21 19:35:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:51,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:51,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:51,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76895350] [2021-10-21 19:35:51,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76895350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:51,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:51,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:35:51,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119526032] [2021-10-21 19:35:51,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:35:51,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:51,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:35:51,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:51,505 INFO L87 Difference]: Start difference. First operand has 87 states, 50 states have (on average 1.94) internal successors, (97), 86 states have internal predecessors, (97), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:51,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:51,773 INFO L93 Difference]: Finished difference Result 181 states and 215 transitions. [2021-10-21 19:35:51,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:35:51,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-21 19:35:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:51,794 INFO L225 Difference]: With dead ends: 181 [2021-10-21 19:35:51,795 INFO L226 Difference]: Without dead ends: 92 [2021-10-21 19:35:51,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-21 19:35:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2021-10-21 19:35:51,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.6727272727272726) internal successors, (92), 82 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) [2021-10-21 19:35:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-10-21 19:35:51,891 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 4 [2021-10-21 19:35:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:51,892 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-10-21 19:35:51,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-10-21 19:35:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:35:51,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:51,894 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:35:51,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:35:51,895 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)] === [2021-10-21 19:35:51,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:51,897 INFO L82 PathProgramCache]: Analyzing trace with hash 957477, now seen corresponding path program 1 times [2021-10-21 19:35:51,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:51,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94123341] [2021-10-21 19:35:51,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:51,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:51,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:51,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94123341] [2021-10-21 19:35:51,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94123341] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:51,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:51,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:35:51,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879846909] [2021-10-21 19:35:51,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:35:51,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:51,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:35:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:51,952 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:52,154 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2021-10-21 19:35:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:35:52,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-21 19:35:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:52,157 INFO L225 Difference]: With dead ends: 113 [2021-10-21 19:35:52,157 INFO L226 Difference]: Without dead ends: 97 [2021-10-21 19:35:52,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:52,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-21 19:35:52,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2021-10-21 19:35:52,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 80 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) [2021-10-21 19:35:52,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-10-21 19:35:52,169 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 4 [2021-10-21 19:35:52,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:52,170 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-10-21 19:35:52,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-10-21 19:35:52,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:35:52,171 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:52,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:35:52,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:35:52,173 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)] === [2021-10-21 19:35:52,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:52,174 INFO L82 PathProgramCache]: Analyzing trace with hash 29747371, now seen corresponding path program 1 times [2021-10-21 19:35:52,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:52,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096561009] [2021-10-21 19:35:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:52,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:52,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:52,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096561009] [2021-10-21 19:35:52,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096561009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:52,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:52,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:35:52,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216895060] [2021-10-21 19:35:52,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:35:52,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:52,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:35:52,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:52,211 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:52,343 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2021-10-21 19:35:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:35:52,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:35:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:52,346 INFO L225 Difference]: With dead ends: 90 [2021-10-21 19:35:52,346 INFO L226 Difference]: Without dead ends: 89 [2021-10-21 19:35:52,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:35:52,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-21 19:35:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2021-10-21 19:35:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 62 states have (on average 1.435483870967742) internal successors, (89), 79 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) [2021-10-21 19:35:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2021-10-21 19:35:52,358 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 5 [2021-10-21 19:35:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:52,359 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2021-10-21 19:35:52,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2021-10-21 19:35:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:35:52,361 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:52,361 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:52,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:35:52,362 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)] === [2021-10-21 19:35:52,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:52,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1540529751, now seen corresponding path program 1 times [2021-10-21 19:35:52,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:52,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399718454] [2021-10-21 19:35:52,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:52,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:52,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:52,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399718454] [2021-10-21 19:35:52,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399718454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:52,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:52,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:35:52,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75538134] [2021-10-21 19:35:52,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:35:52,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:52,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:35:52,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:52,433 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-21 19:35:52,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:52,697 INFO L93 Difference]: Finished difference Result 129 states and 138 transitions. [2021-10-21 19:35:52,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:35:52,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2021-10-21 19:35:52,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:52,702 INFO L225 Difference]: With dead ends: 129 [2021-10-21 19:35:52,702 INFO L226 Difference]: Without dead ends: 122 [2021-10-21 19:35:52,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:52,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-21 19:35:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 96. [2021-10-21 19:35:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 95 states have internal predecessors, (105), 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) [2021-10-21 19:35:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2021-10-21 19:35:52,726 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 7 [2021-10-21 19:35:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:52,727 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2021-10-21 19:35:52,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-21 19:35:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2021-10-21 19:35:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 19:35:52,728 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:52,728 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:52,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:35:52,736 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)] === [2021-10-21 19:35:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:52,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1440726131, now seen corresponding path program 1 times [2021-10-21 19:35:52,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:52,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443475791] [2021-10-21 19:35:52,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:52,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:52,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:52,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443475791] [2021-10-21 19:35:52,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443475791] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:52,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:52,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:35:52,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340632803] [2021-10-21 19:35:52,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:35:52,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:52,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:35:52,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:35:52,827 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:52,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:52,983 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2021-10-21 19:35:52,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:35:52,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-21 19:35:52,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:52,985 INFO L225 Difference]: With dead ends: 105 [2021-10-21 19:35:52,985 INFO L226 Difference]: Without dead ends: 104 [2021-10-21 19:35:52,986 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 [2021-10-21 19:35:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-21 19:35:52,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2021-10-21 19:35:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 94 states have internal predecessors, (104), 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) [2021-10-21 19:35:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2021-10-21 19:35:52,995 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 8 [2021-10-21 19:35:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:52,995 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2021-10-21 19:35:52,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2021-10-21 19:35:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:35:52,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:52,997 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:52,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:35:52,998 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)] === [2021-10-21 19:35:52,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:52,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2098770931, now seen corresponding path program 1 times [2021-10-21 19:35:52,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:53,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26093538] [2021-10-21 19:35:53,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:53,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:53,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:53,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26093538] [2021-10-21 19:35:53,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26093538] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:53,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:53,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:35:53,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205357020] [2021-10-21 19:35:53,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:35:53,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:53,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:35:53,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:35:53,097 INFO L87 Difference]: Start difference. First operand 95 states and 104 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2021-10-21 19:35:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:53,376 INFO L93 Difference]: Finished difference Result 150 states and 159 transitions. [2021-10-21 19:35:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:35:53,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 [2021-10-21 19:35:53,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:53,379 INFO L225 Difference]: With dead ends: 150 [2021-10-21 19:35:53,379 INFO L226 Difference]: Without dead ends: 144 [2021-10-21 19:35:53,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:35:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-21 19:35:53,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 105. [2021-10-21 19:35:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 90 states have (on average 1.2666666666666666) internal successors, (114), 104 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) [2021-10-21 19:35:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2021-10-21 19:35:53,389 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 10 [2021-10-21 19:35:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:53,389 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2021-10-21 19:35:53,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2021-10-21 19:35:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2021-10-21 19:35:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:35:53,391 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:53,391 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:53,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:35:53,392 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)] === [2021-10-21 19:35:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:53,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1064053241, now seen corresponding path program 1 times [2021-10-21 19:35:53,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:53,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535821623] [2021-10-21 19:35:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:53,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:53,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:53,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535821623] [2021-10-21 19:35:53,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535821623] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:53,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:53,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:35:53,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347152326] [2021-10-21 19:35:53,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:35:53,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:35:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:35:53,485 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-21 19:35:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:53,641 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2021-10-21 19:35:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:35:53,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2021-10-21 19:35:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:53,643 INFO L225 Difference]: With dead ends: 114 [2021-10-21 19:35:53,644 INFO L226 Difference]: Without dead ends: 113 [2021-10-21 19:35:53,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:35:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-21 19:35:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2021-10-21 19:35:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 103 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) [2021-10-21 19:35:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2021-10-21 19:35:53,652 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 11 [2021-10-21 19:35:53,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:53,652 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2021-10-21 19:35:53,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-21 19:35:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2021-10-21 19:35:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:35:53,654 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:53,654 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:53,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:35:53,655 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)] === [2021-10-21 19:35:53,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:53,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1649017929, now seen corresponding path program 1 times [2021-10-21 19:35:53,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:53,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050605665] [2021-10-21 19:35:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:53,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:53,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:53,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050605665] [2021-10-21 19:35:53,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050605665] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:53,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:53,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:35:53,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855602974] [2021-10-21 19:35:53,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:35:53,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:53,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:35:53,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:35:53,718 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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) [2021-10-21 19:35:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:54,032 INFO L93 Difference]: Finished difference Result 168 states and 177 transitions. [2021-10-21 19:35:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:35:54,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 [2021-10-21 19:35:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:54,035 INFO L225 Difference]: With dead ends: 168 [2021-10-21 19:35:54,035 INFO L226 Difference]: Without dead ends: 163 [2021-10-21 19:35:54,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:35:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-21 19:35:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 108. [2021-10-21 19:35:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 95 states have (on average 1.231578947368421) internal successors, (117), 107 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) [2021-10-21 19:35:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2021-10-21 19:35:54,043 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 13 [2021-10-21 19:35:54,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:54,043 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2021-10-21 19:35:54,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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) [2021-10-21 19:35:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2021-10-21 19:35:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:35:54,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:54,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:54,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:35:54,046 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)] === [2021-10-21 19:35:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1943421695, now seen corresponding path program 1 times [2021-10-21 19:35:54,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:54,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395047086] [2021-10-21 19:35:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:54,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:54,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:54,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395047086] [2021-10-21 19:35:54,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395047086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:54,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:54,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:35:54,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436261801] [2021-10-21 19:35:54,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:35:54,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:35:54,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:35:54,113 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-21 19:35:54,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:54,261 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2021-10-21 19:35:54,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:35:54,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2021-10-21 19:35:54,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:54,263 INFO L225 Difference]: With dead ends: 117 [2021-10-21 19:35:54,263 INFO L226 Difference]: Without dead ends: 116 [2021-10-21 19:35:54,264 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:35:54,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-21 19:35:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 107. [2021-10-21 19:35:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 106 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) [2021-10-21 19:35:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2021-10-21 19:35:54,270 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 14 [2021-10-21 19:35:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:54,271 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2021-10-21 19:35:54,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-21 19:35:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2021-10-21 19:35:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:35:54,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:54,273 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:54,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:35:54,274 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)] === [2021-10-21 19:35:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash -57105471, now seen corresponding path program 1 times [2021-10-21 19:35:54,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:54,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378957269] [2021-10-21 19:35:54,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:54,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:54,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:54,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378957269] [2021-10-21 19:35:54,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378957269] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:54,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:54,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:35:54,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317554733] [2021-10-21 19:35:54,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:35:54,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:35:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:35:54,347 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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) [2021-10-21 19:35:54,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:54,681 INFO L93 Difference]: Finished difference Result 183 states and 192 transitions. [2021-10-21 19:35:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:35:54,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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 [2021-10-21 19:35:54,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:54,684 INFO L225 Difference]: With dead ends: 183 [2021-10-21 19:35:54,684 INFO L226 Difference]: Without dead ends: 179 [2021-10-21 19:35:54,685 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.8ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:35:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-10-21 19:35:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 105. [2021-10-21 19:35:54,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 94 states have (on average 1.2127659574468086) internal successors, (114), 104 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) [2021-10-21 19:35:54,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2021-10-21 19:35:54,690 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 16 [2021-10-21 19:35:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:54,690 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2021-10-21 19:35:54,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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) [2021-10-21 19:35:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2021-10-21 19:35:54,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:35:54,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:54,692 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:54,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:35:54,693 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)] === [2021-10-21 19:35:54,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:54,693 INFO L82 PathProgramCache]: Analyzing trace with hash -316464313, now seen corresponding path program 1 times [2021-10-21 19:35:54,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:54,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037943145] [2021-10-21 19:35:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:54,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:54,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:54,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037943145] [2021-10-21 19:35:54,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037943145] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:54,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:54,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:35:54,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333994470] [2021-10-21 19:35:54,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:35:54,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:54,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:35:54,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:35:54,831 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:54,953 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2021-10-21 19:35:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:35:54,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-21 19:35:54,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:54,956 INFO L225 Difference]: With dead ends: 114 [2021-10-21 19:35:54,956 INFO L226 Difference]: Without dead ends: 113 [2021-10-21 19:35:54,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:35:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-21 19:35:54,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2021-10-21 19:35:54,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 94 states have (on average 1.202127659574468) internal successors, (113), 103 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) [2021-10-21 19:35:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2021-10-21 19:35:54,964 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 17 [2021-10-21 19:35:54,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:54,964 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2021-10-21 19:35:54,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:54,965 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2021-10-21 19:35:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:35:54,969 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:54,969 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:35:54,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:35:54,970 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)] === [2021-10-21 19:35:54,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:54,972 INFO L82 PathProgramCache]: Analyzing trace with hash -421937723, now seen corresponding path program 1 times [2021-10-21 19:35:54,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:54,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910573187] [2021-10-21 19:35:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:54,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:55,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:55,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910573187] [2021-10-21 19:35:55,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910573187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:55,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:55,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:35:55,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79398256] [2021-10-21 19:35:55,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:35:55,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:35:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:35:55,093 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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) [2021-10-21 19:35:55,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:55,433 INFO L93 Difference]: Finished difference Result 195 states and 204 transitions. [2021-10-21 19:35:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:35:55,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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 [2021-10-21 19:35:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:55,436 INFO L225 Difference]: With dead ends: 195 [2021-10-21 19:35:55,436 INFO L226 Difference]: Without dead ends: 192 [2021-10-21 19:35:55,437 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.0ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:35:55,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-21 19:35:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 96. [2021-10-21 19:35:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.206896551724138) internal successors, (105), 95 states have internal predecessors, (105), 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) [2021-10-21 19:35:55,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2021-10-21 19:35:55,442 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 19 [2021-10-21 19:35:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:55,442 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2021-10-21 19:35:55,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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) [2021-10-21 19:35:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2021-10-21 19:35:55,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:35:55,444 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:55,444 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] [2021-10-21 19:35:55,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:35:55,445 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)] === [2021-10-21 19:35:55,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:55,446 INFO L82 PathProgramCache]: Analyzing trace with hash -335018609, now seen corresponding path program 1 times [2021-10-21 19:35:55,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:55,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575387537] [2021-10-21 19:35:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:55,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:55,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:55,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575387537] [2021-10-21 19:35:55,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575387537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:55,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:55,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:35:55,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426992815] [2021-10-21 19:35:55,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:35:55,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:55,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:35:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:35:55,551 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:55,700 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2021-10-21 19:35:55,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:35:55,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-21 19:35:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:55,705 INFO L225 Difference]: With dead ends: 105 [2021-10-21 19:35:55,706 INFO L226 Difference]: Without dead ends: 104 [2021-10-21 19:35:55,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:35:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-21 19:35:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2021-10-21 19:35:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 87 states have (on average 1.1954022988505748) internal successors, (104), 94 states have internal predecessors, (104), 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) [2021-10-21 19:35:55,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2021-10-21 19:35:55,715 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 20 [2021-10-21 19:35:55,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:55,716 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2021-10-21 19:35:55,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2021-10-21 19:35:55,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:35:55,720 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:55,720 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] [2021-10-21 19:35:55,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 19:35:55,723 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)] === [2021-10-21 19:35:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:55,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1422683023, now seen corresponding path program 1 times [2021-10-21 19:35:55,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:55,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562340690] [2021-10-21 19:35:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:55,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:55,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:55,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562340690] [2021-10-21 19:35:55,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562340690] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:55,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:55,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:35:55,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004109625] [2021-10-21 19:35:55,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:35:55,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:55,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:35:55,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:35:55,854 INFO L87 Difference]: Start difference. First operand 95 states and 104 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 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) [2021-10-21 19:35:56,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:56,164 INFO L93 Difference]: Finished difference Result 204 states and 213 transitions. [2021-10-21 19:35:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:35:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 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 [2021-10-21 19:35:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:56,171 INFO L225 Difference]: With dead ends: 204 [2021-10-21 19:35:56,171 INFO L226 Difference]: Without dead ends: 202 [2021-10-21 19:35:56,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.5ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:35:56,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-21 19:35:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 81. [2021-10-21 19:35:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 80 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) [2021-10-21 19:35:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-10-21 19:35:56,176 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 22 [2021-10-21 19:35:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:56,177 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-10-21 19:35:56,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 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) [2021-10-21 19:35:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-10-21 19:35:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:35:56,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:56,179 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] [2021-10-21 19:35:56,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-21 19:35:56,179 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)] === [2021-10-21 19:35:56,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:56,180 INFO L82 PathProgramCache]: Analyzing trace with hash 964744341, now seen corresponding path program 1 times [2021-10-21 19:35:56,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:56,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260149224] [2021-10-21 19:35:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:56,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:56,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:56,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260149224] [2021-10-21 19:35:56,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260149224] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:56,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:56,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:35:56,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656695231] [2021-10-21 19:35:56,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:35:56,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:35:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:35:56,259 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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) [2021-10-21 19:35:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:56,388 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2021-10-21 19:35:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:35:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 23 [2021-10-21 19:35:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:56,391 INFO L225 Difference]: With dead ends: 90 [2021-10-21 19:35:56,391 INFO L226 Difference]: Without dead ends: 89 [2021-10-21 19:35:56,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.3ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:35:56,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-21 19:35:56,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2021-10-21 19:35:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 79 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) [2021-10-21 19:35:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2021-10-21 19:35:56,399 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 23 [2021-10-21 19:35:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:56,403 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2021-10-21 19:35:56,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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) [2021-10-21 19:35:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2021-10-21 19:35:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:35:56,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:56,405 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] [2021-10-21 19:35:56,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 19:35:56,405 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)] === [2021-10-21 19:35:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:56,406 INFO L82 PathProgramCache]: Analyzing trace with hash 412788691, now seen corresponding path program 1 times [2021-10-21 19:35:56,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:56,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684446910] [2021-10-21 19:35:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:56,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:56,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:56,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:56,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684446910] [2021-10-21 19:35:56,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684446910] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:56,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:56,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-21 19:35:56,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315503946] [2021-10-21 19:35:56,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:35:56,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:56,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:35:56,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:35:56,575 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 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) [2021-10-21 19:35:56,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:56,970 INFO L93 Difference]: Finished difference Result 210 states and 219 transitions. [2021-10-21 19:35:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:35:56,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 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 [2021-10-21 19:35:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:56,972 INFO L225 Difference]: With dead ends: 210 [2021-10-21 19:35:56,972 INFO L226 Difference]: Without dead ends: 209 [2021-10-21 19:35:56,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.7ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:35:56,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-10-21 19:35:56,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 60. [2021-10-21 19:35:56,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 59 states have internal predecessors, (69), 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) [2021-10-21 19:35:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2021-10-21 19:35:56,977 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 25 [2021-10-21 19:35:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:56,978 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2021-10-21 19:35:56,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 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) [2021-10-21 19:35:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2021-10-21 19:35:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:35:56,982 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:56,982 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] [2021-10-21 19:35:56,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-21 19:35:56,983 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)] === [2021-10-21 19:35:56,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:56,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1222339043, now seen corresponding path program 1 times [2021-10-21 19:35:56,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:56,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76294245] [2021-10-21 19:35:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:56,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:57,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:57,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76294245] [2021-10-21 19:35:57,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76294245] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:57,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:57,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-21 19:35:57,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101877592] [2021-10-21 19:35:57,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:35:57,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:57,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:35:57,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:35:57,140 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 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) [2021-10-21 19:35:57,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:57,307 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2021-10-21 19:35:57,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:35:57,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 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 26 [2021-10-21 19:35:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:57,309 INFO L225 Difference]: With dead ends: 69 [2021-10-21 19:35:57,309 INFO L226 Difference]: Without dead ends: 68 [2021-10-21 19:35:57,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.3ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:35:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-21 19:35:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2021-10-21 19:35:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 58 states have internal predecessors, (68), 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) [2021-10-21 19:35:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2021-10-21 19:35:57,312 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 26 [2021-10-21 19:35:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:57,312 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2021-10-21 19:35:57,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 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) [2021-10-21 19:35:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2021-10-21 19:35:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 19:35:57,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:57,313 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] [2021-10-21 19:35:57,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-21 19:35:57,314 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)] === [2021-10-21 19:35:57,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:57,314 INFO L82 PathProgramCache]: Analyzing trace with hash 896666621, now seen corresponding path program 1 times [2021-10-21 19:35:57,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:57,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703114560] [2021-10-21 19:35:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:57,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:57,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:57,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703114560] [2021-10-21 19:35:57,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703114560] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:57,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:57,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-21 19:35:57,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061843786] [2021-10-21 19:35:57,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:35:57,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:57,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:35:57,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:35:57,476 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:58,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:58,040 INFO L93 Difference]: Finished difference Result 200 states and 217 transitions. [2021-10-21 19:35:58,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 19:35:58,045 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-21 19:35:58,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:58,047 INFO L225 Difference]: With dead ends: 200 [2021-10-21 19:35:58,047 INFO L226 Difference]: Without dead ends: 199 [2021-10-21 19:35:58,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 163.3ms TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2021-10-21 19:35:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-21 19:35:58,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 58. [2021-10-21 19:35:58,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 57 states have internal predecessors, (67), 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) [2021-10-21 19:35:58,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-10-21 19:35:58,052 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 28 [2021-10-21 19:35:58,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:58,052 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-10-21 19:35:58,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:58,053 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2021-10-21 19:35:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 19:35:58,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:58,054 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, 1] [2021-10-21 19:35:58,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 19:35:58,055 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-21 19:35:58,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:58,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2026861636, now seen corresponding path program 1 times [2021-10-21 19:35:58,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:58,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103271245] [2021-10-21 19:35:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:58,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:35:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:35:58,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:35:58,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103271245] [2021-10-21 19:35:58,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103271245] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:35:58,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:35:58,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:35:58,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29578106] [2021-10-21 19:35:58,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:35:58,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:35:58,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:35:58,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:35:58,115 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:35:58,265 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2021-10-21 19:35:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:35:58,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-21 19:35:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:35:58,267 INFO L225 Difference]: With dead ends: 76 [2021-10-21 19:35:58,267 INFO L226 Difference]: Without dead ends: 75 [2021-10-21 19:35:58,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:35:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-21 19:35:58,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 61. [2021-10-21 19:35:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.206896551724138) internal successors, (70), 60 states have internal predecessors, (70), 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) [2021-10-21 19:35:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2021-10-21 19:35:58,270 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 29 [2021-10-21 19:35:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:35:58,271 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2021-10-21 19:35:58,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:35:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2021-10-21 19:35:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 19:35:58,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:35:58,272 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, 1] [2021-10-21 19:35:58,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 19:35:58,272 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-21 19:35:58,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:58,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1969538558, now seen corresponding path program 1 times [2021-10-21 19:35:58,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:58,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494028634] [2021-10-21 19:35:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:58,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:58,284 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:35:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:58,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:35:58,313 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:35:58,315 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:35:58,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-21 19:35:58,337 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:35:58,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:35:58 BoogieIcfgContainer [2021-10-21 19:35:58,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:35:58,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:35:58,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:35:58,364 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:35:58,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:51" (3/4) ... [2021-10-21 19:35:58,367 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:35:58,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:35:58,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:35:58,422 INFO L168 Benchmark]: Toolchain (without parser) took 8189.31 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 67.6 MB in the beginning and 42.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:58,422 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 104.9 MB. Free memory is still 83.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:58,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.51 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 80.6 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:58,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.81 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:58,424 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:58,424 INFO L168 Benchmark]: RCFGBuilder took 457.99 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 65.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:58,425 INFO L168 Benchmark]: TraceAbstraction took 7254.10 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 65.5 MB in the beginning and 44.1 MB in the end (delta: 21.4 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:58,426 INFO L168 Benchmark]: Witness Printer took 56.34 ms. Allocated memory is still 138.4 MB. Free memory was 44.1 MB in the beginning and 42.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:58,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 104.9 MB. Free memory is still 83.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 338.51 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 80.6 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.81 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 457.99 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 65.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7254.10 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 65.5 MB in the beginning and 44.1 MB in the end (delta: 21.4 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. * Witness Printer took 56.34 ms. Allocated memory is still 138.4 MB. Free memory was 44.1 MB in the beginning and 42.0 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, 87 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 7134.4ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 36.7ms, AutomataDifference: 4730.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 464 SDtfs, 1989 SDslu, 98 SDs, 0 SdLazy, 4134 SolverSat, 801 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3152.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 615.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=8, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 200.8ms AutomataMinimizationTime, 19 MinimizatonAttempts, 812 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 73.6ms SsaConstructionTime, 202.5ms SatisfiabilityAnalysisTime, 1390.1ms InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 1087 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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! [2021-10-21 19:35:58,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925b0d16-44e5-46d2-92e8-7330e47c7757/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...