/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:04:47,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:04:47,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:04:47,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:04:47,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:04:47,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:04:47,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:04:47,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:04:47,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:04:47,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:04:47,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:04:47,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:04:47,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:04:47,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:04:47,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:04:47,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:04:47,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:04:47,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:04:47,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:04:47,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:04:47,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:04:47,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:04:47,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:04:47,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:04:47,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 22:04:47,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 22:04:47,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 22:04:47,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 22:04:47,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 22:04:47,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 22:04:47,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 22:04:47,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 22:04:47,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 22:04:47,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 22:04:47,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 22:04:47,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 22:04:47,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 22:04:47,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 22:04:47,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:04:47,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:04:47,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:04:47,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 22:04:47,376 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:04:47,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:04:47,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:04:47,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:04:47,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:04:47,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:04:47,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:04:47,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:04:47,383 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:04:47,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:04:47,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:04:47,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:04:47,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:04:47,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:04:47,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:04:47,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:04:47,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:04:47,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:04:47,386 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:04:47,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:04:47,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:04:47,387 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:04:47,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:04:47,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:04:47,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:04:47,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:04:47,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:04:47,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:04:47,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:04:47,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:04:47,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:04:47,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:04:47,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:04:47,390 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:04:47,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:04:47,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:04:47,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:04:47,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:04:47,865 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:04:47,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-15 22:04:47,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d0a140a/60e4c8638ddc4ca285c5486ad27b2244/FLAGd03a91029 [2022-10-15 22:04:48,624 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:04:48,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-15 22:04:48,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d0a140a/60e4c8638ddc4ca285c5486ad27b2244/FLAGd03a91029 [2022-10-15 22:04:48,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d0a140a/60e4c8638ddc4ca285c5486ad27b2244 [2022-10-15 22:04:48,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:04:48,891 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:04:48,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:04:48,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:04:48,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:04:48,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:04:48" (1/1) ... [2022-10-15 22:04:48,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66da5bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:48, skipping insertion in model container [2022-10-15 22:04:48,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:04:48" (1/1) ... [2022-10-15 22:04:48,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:04:48,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:04:49,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9657,9670] [2022-10-15 22:04:49,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12013,12026] [2022-10-15 22:04:49,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:04:49,355 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:04:49,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9657,9670] [2022-10-15 22:04:49,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12013,12026] [2022-10-15 22:04:49,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:04:49,552 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:04:49,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49 WrapperNode [2022-10-15 22:04:49,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:04:49,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:04:49,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:04:49,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:04:49,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,682 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1063 [2022-10-15 22:04:49,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:04:49,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:04:49,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:04:49,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:04:49,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:04:49,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:04:49,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:04:49,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:04:49,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (1/1) ... [2022-10-15 22:04:49,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:04:49,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:04:49,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 22:04:49,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 22:04:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 22:04:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 22:04:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:04:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:04:50,114 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:04:50,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:04:51,309 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:04:51,375 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:04:51,376 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 22:04:51,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:04:51 BoogieIcfgContainer [2022-10-15 22:04:51,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:04:51,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:04:51,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:04:51,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:04:51,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:04:48" (1/3) ... [2022-10-15 22:04:51,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4448f4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:04:51, skipping insertion in model container [2022-10-15 22:04:51,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:04:49" (2/3) ... [2022-10-15 22:04:51,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4448f4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:04:51, skipping insertion in model container [2022-10-15 22:04:51,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:04:51" (3/3) ... [2022-10-15 22:04:51,406 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-15 22:04:51,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:04:51,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2022-10-15 22:04:51,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:04:51,527 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71f25764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:04:51,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2022-10-15 22:04:51,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 329 states have (on average 1.8601823708206686) internal successors, (612), 421 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:51,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 22:04:51,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:51,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:51,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash -266023818, now seen corresponding path program 1 times [2022-10-15 22:04:51,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:51,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25186380] [2022-10-15 22:04:51,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:51,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:52,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:52,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25186380] [2022-10-15 22:04:52,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25186380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:52,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:52,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:04:52,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264367587] [2022-10-15 22:04:52,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:52,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:04:52,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:04:52,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:52,288 INFO L87 Difference]: Start difference. First operand has 422 states, 329 states have (on average 1.8601823708206686) internal successors, (612), 421 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:52,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:52,583 INFO L93 Difference]: Finished difference Result 562 states and 817 transitions. [2022-10-15 22:04:52,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:04:52,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-10-15 22:04:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:52,604 INFO L225 Difference]: With dead ends: 562 [2022-10-15 22:04:52,604 INFO L226 Difference]: Without dead ends: 528 [2022-10-15 22:04:52,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:52,613 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 454 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:52,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 680 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:52,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-10-15 22:04:52,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 508. [2022-10-15 22:04:52,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 436 states have (on average 1.6077981651376148) internal successors, (701), 507 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 701 transitions. [2022-10-15 22:04:52,698 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 701 transitions. Word has length 58 [2022-10-15 22:04:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:52,699 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 701 transitions. [2022-10-15 22:04:52,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 701 transitions. [2022-10-15 22:04:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 22:04:52,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:52,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:52,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:04:52,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:52,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:52,703 INFO L85 PathProgramCache]: Analyzing trace with hash 343196483, now seen corresponding path program 1 times [2022-10-15 22:04:52,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:52,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285713379] [2022-10-15 22:04:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:52,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:52,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:52,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285713379] [2022-10-15 22:04:52,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285713379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:52,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:52,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:04:52,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194755310] [2022-10-15 22:04:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:52,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:04:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:52,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:04:52,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:52,932 INFO L87 Difference]: Start difference. First operand 508 states and 701 transitions. Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:53,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:53,146 INFO L93 Difference]: Finished difference Result 531 states and 701 transitions. [2022-10-15 22:04:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:04:53,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-10-15 22:04:53,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:53,152 INFO L225 Difference]: With dead ends: 531 [2022-10-15 22:04:53,152 INFO L226 Difference]: Without dead ends: 524 [2022-10-15 22:04:53,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:53,155 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 381 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:53,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 602 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-10-15 22:04:53,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 504. [2022-10-15 22:04:53,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 436 states have (on average 1.591743119266055) internal successors, (694), 503 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 694 transitions. [2022-10-15 22:04:53,198 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 694 transitions. Word has length 59 [2022-10-15 22:04:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:53,199 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 694 transitions. [2022-10-15 22:04:53,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:53,200 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 694 transitions. [2022-10-15 22:04:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 22:04:53,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:53,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:53,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:04:53,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:53,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:53,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2049156632, now seen corresponding path program 1 times [2022-10-15 22:04:53,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:53,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555144384] [2022-10-15 22:04:53,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:53,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:53,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555144384] [2022-10-15 22:04:53,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555144384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:53,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:53,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:04:53,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239620056] [2022-10-15 22:04:53,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:53,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:04:53,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:04:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:53,383 INFO L87 Difference]: Start difference. First operand 504 states and 694 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:53,593 INFO L93 Difference]: Finished difference Result 663 states and 948 transitions. [2022-10-15 22:04:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:04:53,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2022-10-15 22:04:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:53,600 INFO L225 Difference]: With dead ends: 663 [2022-10-15 22:04:53,601 INFO L226 Difference]: Without dead ends: 655 [2022-10-15 22:04:53,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:53,609 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 400 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:53,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 519 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-10-15 22:04:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 653. [2022-10-15 22:04:53,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 592 states have (on average 1.5827702702702702) internal successors, (937), 652 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 937 transitions. [2022-10-15 22:04:53,666 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 937 transitions. Word has length 60 [2022-10-15 22:04:53,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:53,667 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 937 transitions. [2022-10-15 22:04:53,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 937 transitions. [2022-10-15 22:04:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 22:04:53,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:53,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:53,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:04:53,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:53,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash -900653595, now seen corresponding path program 1 times [2022-10-15 22:04:53,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:53,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815680101] [2022-10-15 22:04:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:53,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:53,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815680101] [2022-10-15 22:04:53,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815680101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:53,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:53,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:04:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475796072] [2022-10-15 22:04:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:53,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:04:53,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:04:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:53,961 INFO L87 Difference]: Start difference. First operand 653 states and 937 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:54,196 INFO L93 Difference]: Finished difference Result 958 states and 1411 transitions. [2022-10-15 22:04:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:04:54,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2022-10-15 22:04:54,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:54,208 INFO L225 Difference]: With dead ends: 958 [2022-10-15 22:04:54,209 INFO L226 Difference]: Without dead ends: 951 [2022-10-15 22:04:54,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:04:54,221 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 370 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:54,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 576 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:54,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-10-15 22:04:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 931. [2022-10-15 22:04:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 874 states have (on average 1.6006864988558351) internal successors, (1399), 930 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1399 transitions. [2022-10-15 22:04:54,304 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1399 transitions. Word has length 61 [2022-10-15 22:04:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:54,305 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1399 transitions. [2022-10-15 22:04:54,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1399 transitions. [2022-10-15 22:04:54,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 22:04:54,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:54,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:54,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:04:54,311 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:54,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:54,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2055297191, now seen corresponding path program 1 times [2022-10-15 22:04:54,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:54,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567452719] [2022-10-15 22:04:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:54,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:54,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:54,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567452719] [2022-10-15 22:04:54,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567452719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:54,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:54,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:04:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336336417] [2022-10-15 22:04:54,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:54,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:04:54,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:04:54,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:04:54,438 INFO L87 Difference]: Start difference. First operand 931 states and 1399 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:54,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:54,733 INFO L93 Difference]: Finished difference Result 1285 states and 1955 transitions. [2022-10-15 22:04:54,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:04:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 22:04:54,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:54,742 INFO L225 Difference]: With dead ends: 1285 [2022-10-15 22:04:54,742 INFO L226 Difference]: Without dead ends: 1284 [2022-10-15 22:04:54,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:04:54,745 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 458 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:54,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 960 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-10-15 22:04:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 930. [2022-10-15 22:04:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 874 states have (on average 1.59954233409611) internal successors, (1398), 929 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1398 transitions. [2022-10-15 22:04:54,822 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1398 transitions. Word has length 63 [2022-10-15 22:04:54,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:54,823 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1398 transitions. [2022-10-15 22:04:54,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:54,823 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1398 transitions. [2022-10-15 22:04:54,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 22:04:54,824 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:54,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:54,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:04:54,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:54,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:54,826 INFO L85 PathProgramCache]: Analyzing trace with hash -710296259, now seen corresponding path program 1 times [2022-10-15 22:04:54,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:54,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33079103] [2022-10-15 22:04:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:54,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:54,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:54,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33079103] [2022-10-15 22:04:54,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33079103] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:54,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:54,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:04:54,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842328063] [2022-10-15 22:04:54,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:54,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:04:54,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:54,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:04:54,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:04:54,934 INFO L87 Difference]: Start difference. First operand 930 states and 1398 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:55,239 INFO L93 Difference]: Finished difference Result 1283 states and 1954 transitions. [2022-10-15 22:04:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:04:55,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-15 22:04:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:55,248 INFO L225 Difference]: With dead ends: 1283 [2022-10-15 22:04:55,248 INFO L226 Difference]: Without dead ends: 1280 [2022-10-15 22:04:55,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:04:55,250 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 942 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:55,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 668 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:55,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2022-10-15 22:04:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1255. [2022-10-15 22:04:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1201 states have (on average 1.616985845129059) internal successors, (1942), 1254 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1942 transitions. [2022-10-15 22:04:55,383 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1942 transitions. Word has length 64 [2022-10-15 22:04:55,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:55,383 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1942 transitions. [2022-10-15 22:04:55,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1942 transitions. [2022-10-15 22:04:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 22:04:55,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:55,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:55,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:04:55,389 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:55,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash 305103583, now seen corresponding path program 1 times [2022-10-15 22:04:55,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:55,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50700116] [2022-10-15 22:04:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:55,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:55,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:55,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50700116] [2022-10-15 22:04:55,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50700116] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:55,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:55,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:04:55,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769438201] [2022-10-15 22:04:55,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:55,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:04:55,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:55,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:04:55,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:04:55,540 INFO L87 Difference]: Start difference. First operand 1255 states and 1942 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:56,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:56,074 INFO L93 Difference]: Finished difference Result 3933 states and 6292 transitions. [2022-10-15 22:04:56,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:04:56,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2022-10-15 22:04:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:56,094 INFO L225 Difference]: With dead ends: 3933 [2022-10-15 22:04:56,094 INFO L226 Difference]: Without dead ends: 2919 [2022-10-15 22:04:56,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:04:56,101 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1001 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:56,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 925 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2022-10-15 22:04:56,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2206. [2022-10-15 22:04:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2155 states have (on average 1.6292343387470998) internal successors, (3511), 2205 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:56,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3511 transitions. [2022-10-15 22:04:56,321 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3511 transitions. Word has length 66 [2022-10-15 22:04:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:56,321 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 3511 transitions. [2022-10-15 22:04:56,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:56,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3511 transitions. [2022-10-15 22:04:56,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 22:04:56,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:56,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:56,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 22:04:56,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:56,324 INFO L85 PathProgramCache]: Analyzing trace with hash 868276748, now seen corresponding path program 1 times [2022-10-15 22:04:56,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:56,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779522138] [2022-10-15 22:04:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:56,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:56,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:56,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779522138] [2022-10-15 22:04:56,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779522138] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:56,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:56,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:04:56,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481827896] [2022-10-15 22:04:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:56,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:04:56,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:56,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:04:56,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:04:56,438 INFO L87 Difference]: Start difference. First operand 2206 states and 3511 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 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) [2022-10-15 22:04:56,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:56,849 INFO L93 Difference]: Finished difference Result 2886 states and 4615 transitions. [2022-10-15 22:04:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:04:56,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 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) Word has length 67 [2022-10-15 22:04:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:56,867 INFO L225 Difference]: With dead ends: 2886 [2022-10-15 22:04:56,867 INFO L226 Difference]: Without dead ends: 2882 [2022-10-15 22:04:56,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:04:56,870 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 992 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:56,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 630 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:04:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2022-10-15 22:04:57,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2853. [2022-10-15 22:04:57,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2805 states have (on average 1.6349376114081997) internal successors, (4586), 2852 states have internal predecessors, (4586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:57,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4586 transitions. [2022-10-15 22:04:57,176 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4586 transitions. Word has length 67 [2022-10-15 22:04:57,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:57,176 INFO L495 AbstractCegarLoop]: Abstraction has 2853 states and 4586 transitions. [2022-10-15 22:04:57,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 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) [2022-10-15 22:04:57,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4586 transitions. [2022-10-15 22:04:57,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 22:04:57,177 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:57,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:57,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 22:04:57,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:57,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:57,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1190308046, now seen corresponding path program 1 times [2022-10-15 22:04:57,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:57,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871742847] [2022-10-15 22:04:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:57,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:57,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:57,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871742847] [2022-10-15 22:04:57,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871742847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:57,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:57,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:04:57,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090513378] [2022-10-15 22:04:57,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:57,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:04:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:57,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:04:57,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:04:57,302 INFO L87 Difference]: Start difference. First operand 2853 states and 4586 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 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) [2022-10-15 22:04:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:58,179 INFO L93 Difference]: Finished difference Result 9888 states and 16154 transitions. [2022-10-15 22:04:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:04:58,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 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) Word has length 69 [2022-10-15 22:04:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:58,224 INFO L225 Difference]: With dead ends: 9888 [2022-10-15 22:04:58,225 INFO L226 Difference]: Without dead ends: 7270 [2022-10-15 22:04:58,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:04:58,231 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 985 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:58,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1017 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:04:58,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7270 states. [2022-10-15 22:04:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7270 to 5013. [2022-10-15 22:04:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5013 states, 4968 states have (on average 1.6394927536231885) internal successors, (8145), 5012 states have internal predecessors, (8145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:04:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 8145 transitions. [2022-10-15 22:04:58,777 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 8145 transitions. Word has length 69 [2022-10-15 22:04:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:04:58,777 INFO L495 AbstractCegarLoop]: Abstraction has 5013 states and 8145 transitions. [2022-10-15 22:04:58,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 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) [2022-10-15 22:04:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 8145 transitions. [2022-10-15 22:04:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 22:04:58,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:04:58,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:04:58,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 22:04:58,779 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:04:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:04:58,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1755155964, now seen corresponding path program 1 times [2022-10-15 22:04:58,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:04:58,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382140737] [2022-10-15 22:04:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:04:58,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:04:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:04:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:04:58,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:04:58,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382140737] [2022-10-15 22:04:58,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382140737] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:04:58,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:04:58,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:04:58,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278829682] [2022-10-15 22:04:58,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:04:58,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:04:58,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:04:58,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:04:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:04:58,892 INFO L87 Difference]: Start difference. First operand 5013 states and 8145 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 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) [2022-10-15 22:04:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:04:59,881 INFO L93 Difference]: Finished difference Result 7599 states and 12393 transitions. [2022-10-15 22:04:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:04:59,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 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) Word has length 70 [2022-10-15 22:04:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:04:59,941 INFO L225 Difference]: With dead ends: 7599 [2022-10-15 22:04:59,941 INFO L226 Difference]: Without dead ends: 7595 [2022-10-15 22:04:59,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:04:59,948 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 976 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:04:59,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 690 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:04:59,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2022-10-15 22:05:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7545. [2022-10-15 22:05:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7503 states have (on average 1.6398773823803812) internal successors, (12304), 7544 states have internal predecessors, (12304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 12304 transitions. [2022-10-15 22:05:00,967 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 12304 transitions. Word has length 70 [2022-10-15 22:05:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:00,967 INFO L495 AbstractCegarLoop]: Abstraction has 7545 states and 12304 transitions. [2022-10-15 22:05:00,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 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) [2022-10-15 22:05:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 12304 transitions. [2022-10-15 22:05:00,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 22:05:00,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:00,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:00,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 22:05:00,969 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1776313650, now seen corresponding path program 1 times [2022-10-15 22:05:00,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:00,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216258135] [2022-10-15 22:05:00,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:00,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:01,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:01,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216258135] [2022-10-15 22:05:01,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216258135] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:01,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:01,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:05:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970671512] [2022-10-15 22:05:01,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:01,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:05:01,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:01,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:05:01,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:05:01,119 INFO L87 Difference]: Start difference. First operand 7545 states and 12304 transitions. Second operand has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:01,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:05:01,889 INFO L93 Difference]: Finished difference Result 7545 states and 12304 transitions. [2022-10-15 22:05:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:05:01,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2022-10-15 22:05:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:05:01,921 INFO L225 Difference]: With dead ends: 7545 [2022-10-15 22:05:01,922 INFO L226 Difference]: Without dead ends: 7544 [2022-10-15 22:05:01,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:05:01,928 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 281 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:05:01,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 993 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:05:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-10-15 22:05:02,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7544. [2022-10-15 22:05:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7503 states have (on average 1.6397441023590564) internal successors, (12303), 7543 states have internal predecessors, (12303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 12303 transitions. [2022-10-15 22:05:03,063 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 12303 transitions. Word has length 80 [2022-10-15 22:05:03,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:03,064 INFO L495 AbstractCegarLoop]: Abstraction has 7544 states and 12303 transitions. [2022-10-15 22:05:03,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:03,065 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 12303 transitions. [2022-10-15 22:05:03,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 22:05:03,066 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:03,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:03,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 22:05:03,067 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash -768851393, now seen corresponding path program 1 times [2022-10-15 22:05:03,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:03,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229313914] [2022-10-15 22:05:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:03,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229313914] [2022-10-15 22:05:03,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229313914] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:03,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:03,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:05:03,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156427295] [2022-10-15 22:05:03,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:03,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:05:03,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:03,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:05:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:05:03,201 INFO L87 Difference]: Start difference. First operand 7544 states and 12303 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:05:04,532 INFO L93 Difference]: Finished difference Result 12226 states and 20024 transitions. [2022-10-15 22:05:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:05:04,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2022-10-15 22:05:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:05:04,584 INFO L225 Difference]: With dead ends: 12226 [2022-10-15 22:05:04,585 INFO L226 Difference]: Without dead ends: 12223 [2022-10-15 22:05:04,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:05:04,596 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 713 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:05:04,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 904 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:05:04,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12223 states. [2022-10-15 22:05:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12223 to 12203. [2022-10-15 22:05:05,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12203 states, 12163 states have (on average 1.6414535887527748) internal successors, (19965), 12202 states have internal predecessors, (19965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:05,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 19965 transitions. [2022-10-15 22:05:05,968 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 19965 transitions. Word has length 81 [2022-10-15 22:05:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:05,968 INFO L495 AbstractCegarLoop]: Abstraction has 12203 states and 19965 transitions. [2022-10-15 22:05:05,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:05,970 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 19965 transitions. [2022-10-15 22:05:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 22:05:05,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:05,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:05,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 22:05:05,972 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1935410900, now seen corresponding path program 1 times [2022-10-15 22:05:05,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:05,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950700357] [2022-10-15 22:05:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:06,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:06,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950700357] [2022-10-15 22:05:06,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950700357] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:06,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:06,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:05:06,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606160092] [2022-10-15 22:05:06,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:06,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:05:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:06,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:05:06,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:05:06,138 INFO L87 Difference]: Start difference. First operand 12203 states and 19965 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:05:09,271 INFO L93 Difference]: Finished difference Result 35465 states and 58230 transitions. [2022-10-15 22:05:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 22:05:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2022-10-15 22:05:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:05:09,362 INFO L225 Difference]: With dead ends: 35465 [2022-10-15 22:05:09,363 INFO L226 Difference]: Without dead ends: 23491 [2022-10-15 22:05:09,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:05:09,396 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 617 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:05:09,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1699 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:05:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23491 states. [2022-10-15 22:05:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23491 to 23471. [2022-10-15 22:05:11,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23471 states, 23432 states have (on average 1.63558381700239) internal successors, (38325), 23470 states have internal predecessors, (38325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:11,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23471 states to 23471 states and 38325 transitions. [2022-10-15 22:05:11,545 INFO L78 Accepts]: Start accepts. Automaton has 23471 states and 38325 transitions. Word has length 82 [2022-10-15 22:05:11,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:11,545 INFO L495 AbstractCegarLoop]: Abstraction has 23471 states and 38325 transitions. [2022-10-15 22:05:11,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 23471 states and 38325 transitions. [2022-10-15 22:05:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-15 22:05:11,547 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:11,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:11,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 22:05:11,547 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:11,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:11,548 INFO L85 PathProgramCache]: Analyzing trace with hash -131803935, now seen corresponding path program 1 times [2022-10-15 22:05:11,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:11,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063307331] [2022-10-15 22:05:11,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:11,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063307331] [2022-10-15 22:05:11,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063307331] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:11,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:11,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:05:11,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103848480] [2022-10-15 22:05:11,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:11,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:05:11,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:11,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:05:11,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:05:11,733 INFO L87 Difference]: Start difference. First operand 23471 states and 38325 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:15,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:05:15,756 INFO L93 Difference]: Finished difference Result 34950 states and 57155 transitions. [2022-10-15 22:05:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:05:15,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2022-10-15 22:05:15,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:05:15,883 INFO L225 Difference]: With dead ends: 34950 [2022-10-15 22:05:15,884 INFO L226 Difference]: Without dead ends: 34947 [2022-10-15 22:05:15,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:05:15,905 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 1221 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 22:05:15,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1610 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 22:05:15,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34947 states. [2022-10-15 22:05:19,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34947 to 34891. [2022-10-15 22:05:19,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34891 states, 34853 states have (on average 1.631251255272143) internal successors, (56854), 34890 states have internal predecessors, (56854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34891 states to 34891 states and 56854 transitions. [2022-10-15 22:05:19,632 INFO L78 Accepts]: Start accepts. Automaton has 34891 states and 56854 transitions. Word has length 83 [2022-10-15 22:05:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:19,632 INFO L495 AbstractCegarLoop]: Abstraction has 34891 states and 56854 transitions. [2022-10-15 22:05:19,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 34891 states and 56854 transitions. [2022-10-15 22:05:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-15 22:05:19,637 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:19,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:19,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 22:05:19,638 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash 111908831, now seen corresponding path program 1 times [2022-10-15 22:05:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:19,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510503237] [2022-10-15 22:05:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:19,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510503237] [2022-10-15 22:05:19,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510503237] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:19,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:19,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:05:19,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327908234] [2022-10-15 22:05:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:19,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:05:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:05:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:05:19,827 INFO L87 Difference]: Start difference. First operand 34891 states and 56854 transitions. Second operand has 4 states, 3 states have (on average 36.333333333333336) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:05:24,238 INFO L93 Difference]: Finished difference Result 46056 states and 75145 transitions. [2022-10-15 22:05:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:05:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.333333333333336) internal successors, (109), 4 states have internal predecessors, (109), 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 109 [2022-10-15 22:05:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:05:24,369 INFO L225 Difference]: With dead ends: 46056 [2022-10-15 22:05:24,370 INFO L226 Difference]: Without dead ends: 46051 [2022-10-15 22:05:24,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:05:24,392 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 527 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:05:24,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1111 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:05:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46051 states. [2022-10-15 22:05:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46051 to 46015. [2022-10-15 22:05:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46015 states, 45979 states have (on average 1.6255246960568956) internal successors, (74740), 46014 states have internal predecessors, (74740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46015 states to 46015 states and 74740 transitions. [2022-10-15 22:05:29,272 INFO L78 Accepts]: Start accepts. Automaton has 46015 states and 74740 transitions. Word has length 109 [2022-10-15 22:05:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:29,275 INFO L495 AbstractCegarLoop]: Abstraction has 46015 states and 74740 transitions. [2022-10-15 22:05:29,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.333333333333336) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 46015 states and 74740 transitions. [2022-10-15 22:05:29,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-15 22:05:29,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:29,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:29,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 22:05:29,279 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash -825793117, now seen corresponding path program 1 times [2022-10-15 22:05:29,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:29,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086673501] [2022-10-15 22:05:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:29,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:29,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086673501] [2022-10-15 22:05:29,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086673501] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:29,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:29,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:05:29,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734131153] [2022-10-15 22:05:29,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:29,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:05:29,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:29,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:05:29,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:05:29,707 INFO L87 Difference]: Start difference. First operand 46015 states and 74740 transitions. Second operand has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:05:34,458 INFO L93 Difference]: Finished difference Result 56750 states and 92347 transitions. [2022-10-15 22:05:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:05:34,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 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 110 [2022-10-15 22:05:34,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:05:34,589 INFO L225 Difference]: With dead ends: 56750 [2022-10-15 22:05:34,590 INFO L226 Difference]: Without dead ends: 56745 [2022-10-15 22:05:34,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:05:34,603 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 533 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:05:34,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 948 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:05:34,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56745 states. [2022-10-15 22:05:40,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56745 to 56725. [2022-10-15 22:05:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56725 states, 56691 states have (on average 1.6119842655800745) internal successors, (91385), 56724 states have internal predecessors, (91385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56725 states to 56725 states and 91385 transitions. [2022-10-15 22:05:40,757 INFO L78 Accepts]: Start accepts. Automaton has 56725 states and 91385 transitions. Word has length 110 [2022-10-15 22:05:40,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:05:40,758 INFO L495 AbstractCegarLoop]: Abstraction has 56725 states and 91385 transitions. [2022-10-15 22:05:40,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:05:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 56725 states and 91385 transitions. [2022-10-15 22:05:40,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-15 22:05:40,768 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:05:40,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:05:40,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 22:05:40,768 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2022-10-15 22:05:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:05:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash 170217569, now seen corresponding path program 1 times [2022-10-15 22:05:40,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:05:40,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077046455] [2022-10-15 22:05:40,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:05:40,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:05:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:05:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:05:40,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:05:40,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077046455] [2022-10-15 22:05:40,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077046455] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:05:40,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:05:40,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:05:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271846210] [2022-10-15 22:05:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:05:40,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:05:40,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:05:40,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:05:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:05:40,961 INFO L87 Difference]: Start difference. First operand 56725 states and 91385 transitions. Second operand has 5 states, 4 states have (on average 27.75) internal successors, (111), 5 states have internal predecessors, (111), 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)