/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/systemc/token_ring.09.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:03:35,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:03:35,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:03:35,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:03:35,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:03:35,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:03:35,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:03:35,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:03:35,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:03:35,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:03:35,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:03:35,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:03:35,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:03:35,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:03:35,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:03:35,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:03:35,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:03:35,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:03:35,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:03:35,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:03:35,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:03:35,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:03:35,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:03:35,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:03:35,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:03:35,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:03:35,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:03:35,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:03:35,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:03:35,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:03:35,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:03:35,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:03:35,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:03:35,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:03:35,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:03:35,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:03:35,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:03:35,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:03:35,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:03:35,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:03:35,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:03:35,174 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 [2022-10-16 17:03:35,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:03:35,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:03:35,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:03:35,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:03:35,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:03:35,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:03:35,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:03:35,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:03:35,207 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:03:35,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:03:35,207 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:03:35,207 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:03:35,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:03:35,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:03:35,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:03:35,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:03:35,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:03:35,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:03:35,209 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:03:35,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:03:35,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:03:35,209 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:03:35,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:03:35,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:03:35,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:03:35,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:03:35,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:03:35,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:03:35,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:03:35,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:03:35,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:03:35,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:03:35,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:03:35,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:03:35,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:03:35,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:03:35,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:03:35,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:03:35,621 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:03:35,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.09.cil-1.c [2022-10-16 17:03:35,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e83d6ce1/8159259e4f2c49bcab55978254ed0aee/FLAGf7d211364 [2022-10-16 17:03:36,456 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:03:36,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c [2022-10-16 17:03:36,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e83d6ce1/8159259e4f2c49bcab55978254ed0aee/FLAGf7d211364 [2022-10-16 17:03:36,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e83d6ce1/8159259e4f2c49bcab55978254ed0aee [2022-10-16 17:03:36,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:03:36,801 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:03:36,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:03:36,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:03:36,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:03:36,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:03:36" (1/1) ... [2022-10-16 17:03:36,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3f826e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:36, skipping insertion in model container [2022-10-16 17:03:36,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:03:36" (1/1) ... [2022-10-16 17:03:36,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:03:36,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:03:37,132 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/systemc/token_ring.09.cil-1.c[671,684] [2022-10-16 17:03:37,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:03:37,278 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:03:37,291 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/systemc/token_ring.09.cil-1.c[671,684] [2022-10-16 17:03:37,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:03:37,438 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:03:37,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37 WrapperNode [2022-10-16 17:03:37,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:03:37,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:03:37,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:03:37,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:03:37,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,540 INFO L138 Inliner]: procedures = 46, calls = 58, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 699 [2022-10-16 17:03:37,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:03:37,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:03:37,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:03:37,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:03:37,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:03:37,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:03:37,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:03:37,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:03:37,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (1/1) ... [2022-10-16 17:03:37,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:03:37,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:03:37,721 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) [2022-10-16 17:03:37,737 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 [2022-10-16 17:03:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:03:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 17:03:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 17:03:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 17:03:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 17:03:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 17:03:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 17:03:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 17:03:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 17:03:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 17:03:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 17:03:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:03:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 17:03:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 17:03:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:03:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:03:37,963 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:03:37,966 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:03:38,935 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:03:38,948 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:03:38,949 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-10-16 17:03:38,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:03:38 BoogieIcfgContainer [2022-10-16 17:03:38,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:03:38,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:03:38,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:03:38,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:03:38,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:03:36" (1/3) ... [2022-10-16 17:03:38,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bed69fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:03:38, skipping insertion in model container [2022-10-16 17:03:38,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:37" (2/3) ... [2022-10-16 17:03:38,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bed69fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:03:38, skipping insertion in model container [2022-10-16 17:03:38,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:03:38" (3/3) ... [2022-10-16 17:03:38,962 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.09.cil-1.c [2022-10-16 17:03:38,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:03:38,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 17:03:39,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:03:39,069 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;@42ccc766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:03:39,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 17:03:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 337 states, 287 states have (on average 1.6933797909407666) internal successors, (486), 308 states have internal predecessors, (486), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-10-16 17:03:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:03:39,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:39,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:39,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:03:39,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:39,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1744575847, now seen corresponding path program 1 times [2022-10-16 17:03:39,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:39,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828717624] [2022-10-16 17:03:39,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:39,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:39,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:03:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:03:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:03:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:03:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:39,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:39,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:39,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828717624] [2022-10-16 17:03:39,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828717624] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:39,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:39,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:03:39,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856266276] [2022-10-16 17:03:39,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:39,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:03:39,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:39,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:03:39,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:03:39,931 INFO L87 Difference]: Start difference. First operand has 337 states, 287 states have (on average 1.6933797909407666) internal successors, (486), 308 states have internal predecessors, (486), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:41,539 INFO L93 Difference]: Finished difference Result 770 states and 1231 transitions. [2022-10-16 17:03:41,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:03:41,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:03:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:41,560 INFO L225 Difference]: With dead ends: 770 [2022-10-16 17:03:41,561 INFO L226 Difference]: Without dead ends: 440 [2022-10-16 17:03:41,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:03:41,572 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 833 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:41,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 931 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 17:03:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-10-16 17:03:41,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 331. [2022-10-16 17:03:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 282 states have (on average 1.6099290780141844) internal successors, (454), 302 states have internal predecessors, (454), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-10-16 17:03:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 500 transitions. [2022-10-16 17:03:41,687 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 500 transitions. Word has length 143 [2022-10-16 17:03:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:41,688 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 500 transitions. [2022-10-16 17:03:41,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 500 transitions. [2022-10-16 17:03:41,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:03:41,692 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:41,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:41,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:03:41,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:03:41,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:41,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1875231323, now seen corresponding path program 1 times [2022-10-16 17:03:41,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:41,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618958686] [2022-10-16 17:03:41,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:41,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:03:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:42,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:03:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:03:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:03:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:42,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:42,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:42,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618958686] [2022-10-16 17:03:42,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618958686] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:42,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:42,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:03:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662320912] [2022-10-16 17:03:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:42,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:03:42,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:03:42,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:03:42,241 INFO L87 Difference]: Start difference. First operand 331 states and 500 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:45,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:45,013 INFO L93 Difference]: Finished difference Result 1189 states and 1845 transitions. [2022-10-16 17:03:45,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:03:45,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:03:45,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:45,022 INFO L225 Difference]: With dead ends: 1189 [2022-10-16 17:03:45,022 INFO L226 Difference]: Without dead ends: 875 [2022-10-16 17:03:45,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:03:45,026 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1237 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:45,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1458 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-16 17:03:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-10-16 17:03:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 640. [2022-10-16 17:03:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 566 states have (on average 1.6201413427561837) internal successors, (917), 587 states have internal predecessors, (917), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2022-10-16 17:03:45,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1002 transitions. [2022-10-16 17:03:45,145 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1002 transitions. Word has length 143 [2022-10-16 17:03:45,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:45,145 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 1002 transitions. [2022-10-16 17:03:45,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:45,146 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1002 transitions. [2022-10-16 17:03:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:03:45,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:45,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:45,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:03:45,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:03:45,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:45,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1792909911, now seen corresponding path program 1 times [2022-10-16 17:03:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815529601] [2022-10-16 17:03:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:45,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:45,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:03:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:03:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:45,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:03:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:03:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:45,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:45,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815529601] [2022-10-16 17:03:45,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815529601] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:45,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:45,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:45,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868209894] [2022-10-16 17:03:45,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:45,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:45,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:45,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:45,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:45,576 INFO L87 Difference]: Start difference. First operand 640 states and 1002 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:48,862 INFO L93 Difference]: Finished difference Result 1929 states and 3052 transitions. [2022-10-16 17:03:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:03:48,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:48,884 INFO L225 Difference]: With dead ends: 1929 [2022-10-16 17:03:48,885 INFO L226 Difference]: Without dead ends: 1306 [2022-10-16 17:03:48,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:48,901 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 1254 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:48,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 2600 Invalid, 2520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 17:03:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2022-10-16 17:03:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 928. [2022-10-16 17:03:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 829 states have (on average 1.6139927623642942) internal successors, (1338), 851 states have internal predecessors, (1338), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2022-10-16 17:03:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1461 transitions. [2022-10-16 17:03:49,058 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1461 transitions. Word has length 143 [2022-10-16 17:03:49,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:49,059 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1461 transitions. [2022-10-16 17:03:49,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1461 transitions. [2022-10-16 17:03:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:03:49,062 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:49,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:49,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:03:49,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:03:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1640223783, now seen corresponding path program 1 times [2022-10-16 17:03:49,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:49,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674400791] [2022-10-16 17:03:49,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:49,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:03:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:03:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:03:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:03:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:49,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:49,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674400791] [2022-10-16 17:03:49,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674400791] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:49,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:49,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:49,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788430658] [2022-10-16 17:03:49,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:49,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:49,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:49,397 INFO L87 Difference]: Start difference. First operand 928 states and 1461 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:52,819 INFO L93 Difference]: Finished difference Result 3020 states and 4819 transitions. [2022-10-16 17:03:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:03:52,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:52,837 INFO L225 Difference]: With dead ends: 3020 [2022-10-16 17:03:52,838 INFO L226 Difference]: Without dead ends: 2109 [2022-10-16 17:03:52,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:52,853 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 1251 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:52,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 2592 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-10-16 17:03:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2022-10-16 17:03:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1505. [2022-10-16 17:03:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1356 states have (on average 1.6084070796460177) internal successors, (2181), 1380 states have internal predecessors, (2181), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2022-10-16 17:03:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2384 transitions. [2022-10-16 17:03:53,136 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2384 transitions. Word has length 143 [2022-10-16 17:03:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:53,139 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2384 transitions. [2022-10-16 17:03:53,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2384 transitions. [2022-10-16 17:03:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:03:53,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:53,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:53,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:03:53,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:03:53,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:53,155 INFO L85 PathProgramCache]: Analyzing trace with hash 604334615, now seen corresponding path program 1 times [2022-10-16 17:03:53,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:53,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641654646] [2022-10-16 17:03:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:53,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:53,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:03:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:03:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:53,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:03:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:03:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:53,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:53,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641654646] [2022-10-16 17:03:53,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641654646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:53,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:53,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:53,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047605002] [2022-10-16 17:03:53,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:53,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:53,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:53,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:53,443 INFO L87 Difference]: Start difference. First operand 1505 states and 2384 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:56,883 INFO L93 Difference]: Finished difference Result 5121 states and 8206 transitions. [2022-10-16 17:03:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:03:56,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:56,910 INFO L225 Difference]: With dead ends: 5121 [2022-10-16 17:03:56,910 INFO L226 Difference]: Without dead ends: 3633 [2022-10-16 17:03:56,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:56,918 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 1247 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:56,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 2588 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 17:03:56,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-10-16 17:03:57,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 2660. [2022-10-16 17:03:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2660 states, 2411 states have (on average 1.6038987971795935) internal successors, (3867), 2439 states have internal predecessors, (3867), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2022-10-16 17:03:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 4236 transitions. [2022-10-16 17:03:57,270 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 4236 transitions. Word has length 143 [2022-10-16 17:03:57,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:57,270 INFO L495 AbstractCegarLoop]: Abstraction has 2660 states and 4236 transitions. [2022-10-16 17:03:57,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 4236 transitions. [2022-10-16 17:03:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:03:57,274 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:57,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:57,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:03:57,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:03:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:57,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1092381721, now seen corresponding path program 1 times [2022-10-16 17:03:57,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:57,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548389475] [2022-10-16 17:03:57,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:57,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:03:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:03:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:03:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:57,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:03:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:57,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:57,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548389475] [2022-10-16 17:03:57,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548389475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:57,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:57,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:57,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837116827] [2022-10-16 17:03:57,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:57,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:57,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:57,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:57,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:57,558 INFO L87 Difference]: Start difference. First operand 2660 states and 4236 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:01,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:01,273 INFO L93 Difference]: Finished difference Result 9322 states and 14996 transitions. [2022-10-16 17:04:01,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:04:01,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:04:01,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:01,317 INFO L225 Difference]: With dead ends: 9322 [2022-10-16 17:04:01,317 INFO L226 Difference]: Without dead ends: 6679 [2022-10-16 17:04:01,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:04:01,329 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 1246 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:01,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 2582 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 17:04:01,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-10-16 17:04:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 4975. [2022-10-16 17:04:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4975 states, 4526 states have (on average 1.6007512152010606) internal successors, (7245), 4562 states have internal predecessors, (7245), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2022-10-16 17:04:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4975 states to 4975 states and 7964 transitions. [2022-10-16 17:04:02,057 INFO L78 Accepts]: Start accepts. Automaton has 4975 states and 7964 transitions. Word has length 143 [2022-10-16 17:04:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:02,057 INFO L495 AbstractCegarLoop]: Abstraction has 4975 states and 7964 transitions. [2022-10-16 17:04:02,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4975 states and 7964 transitions. [2022-10-16 17:04:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:04:02,062 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:02,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:02,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:04:02,063 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:04:02,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash -253481, now seen corresponding path program 1 times [2022-10-16 17:04:02,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:02,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788919121] [2022-10-16 17:04:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:02,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:04:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:02,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:04:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:02,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:04:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:04:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:02,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:02,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788919121] [2022-10-16 17:04:02,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788919121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:02,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:02,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082977822] [2022-10-16 17:04:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:02,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:02,304 INFO L87 Difference]: Start difference. First operand 4975 states and 7964 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:06,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:06,538 INFO L93 Difference]: Finished difference Result 17708 states and 28606 transitions. [2022-10-16 17:04:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:04:06,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:04:06,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:06,628 INFO L225 Difference]: With dead ends: 17708 [2022-10-16 17:04:06,628 INFO L226 Difference]: Without dead ends: 12750 [2022-10-16 17:04:06,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:04:06,656 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 1328 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:06,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 1739 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 17:04:06,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12750 states. [2022-10-16 17:04:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12750 to 9635. [2022-10-16 17:04:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9635 states, 8786 states have (on average 1.5994764397905759) internal successors, (14053), 8838 states have internal predecessors, (14053), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2022-10-16 17:04:08,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9635 states to 9635 states and 15526 transitions. [2022-10-16 17:04:08,180 INFO L78 Accepts]: Start accepts. Automaton has 9635 states and 15526 transitions. Word has length 143 [2022-10-16 17:04:08,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:08,180 INFO L495 AbstractCegarLoop]: Abstraction has 9635 states and 15526 transitions. [2022-10-16 17:04:08,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9635 states and 15526 transitions. [2022-10-16 17:04:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:04:08,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:08,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:04:08,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:04:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1842729195, now seen corresponding path program 1 times [2022-10-16 17:04:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:08,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160359165] [2022-10-16 17:04:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:04:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:04:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:04:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:04:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:08,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:08,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160359165] [2022-10-16 17:04:08,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160359165] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:08,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:08,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:08,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222739299] [2022-10-16 17:04:08,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:08,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:08,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:08,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:08,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:08,472 INFO L87 Difference]: Start difference. First operand 9635 states and 15526 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:14,602 INFO L93 Difference]: Finished difference Result 34514 states and 56082 transitions. [2022-10-16 17:04:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:04:14,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:04:14,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:14,812 INFO L225 Difference]: With dead ends: 34514 [2022-10-16 17:04:14,813 INFO L226 Difference]: Without dead ends: 24896 [2022-10-16 17:04:14,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:04:14,862 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 1240 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 2569 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 17:04:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24896 states. [2022-10-16 17:04:17,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24896 to 18984. [2022-10-16 17:04:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18984 states, 17335 states have (on average 1.5985578309777906) internal successors, (27711), 17419 states have internal predecessors, (27711), 1175 states have call successors, (1175), 390 states have call predecessors, (1175), 454 states have return successors, (1968), 1238 states have call predecessors, (1968), 1175 states have call successors, (1968) [2022-10-16 17:04:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18984 states to 18984 states and 30854 transitions. [2022-10-16 17:04:17,540 INFO L78 Accepts]: Start accepts. Automaton has 18984 states and 30854 transitions. Word has length 143 [2022-10-16 17:04:17,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:17,540 INFO L495 AbstractCegarLoop]: Abstraction has 18984 states and 30854 transitions. [2022-10-16 17:04:17,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 18984 states and 30854 transitions. [2022-10-16 17:04:17,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:04:17,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:17,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:17,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:04:17,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:04:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:17,555 INFO L85 PathProgramCache]: Analyzing trace with hash 730235415, now seen corresponding path program 1 times [2022-10-16 17:04:17,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:17,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732965056] [2022-10-16 17:04:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:17,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:04:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:04:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:04:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:04:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:17,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:17,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732965056] [2022-10-16 17:04:17,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732965056] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:17,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:17,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256718421] [2022-10-16 17:04:17,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:17,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:17,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:17,886 INFO L87 Difference]: Start difference. First operand 18984 states and 30854 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:26,642 INFO L93 Difference]: Finished difference Result 68125 states and 111632 transitions. [2022-10-16 17:04:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:04:26,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:04:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:26,919 INFO L225 Difference]: With dead ends: 68125 [2022-10-16 17:04:26,920 INFO L226 Difference]: Without dead ends: 49158 [2022-10-16 17:04:27,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:04:27,026 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 1239 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:27,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 2564 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 17:04:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49158 states. [2022-10-16 17:04:31,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49158 to 37745. [2022-10-16 17:04:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37745 states, 34496 states have (on average 1.5978954081632653) internal successors, (55121), 34644 states have internal predecessors, (55121), 2327 states have call successors, (2327), 774 states have call predecessors, (2327), 902 states have return successors, (4642), 2454 states have call predecessors, (4642), 2327 states have call successors, (4642) [2022-10-16 17:04:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37745 states to 37745 states and 62090 transitions. [2022-10-16 17:04:31,826 INFO L78 Accepts]: Start accepts. Automaton has 37745 states and 62090 transitions. Word has length 143 [2022-10-16 17:04:31,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:31,826 INFO L495 AbstractCegarLoop]: Abstraction has 37745 states and 62090 transitions. [2022-10-16 17:04:31,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:31,827 INFO L276 IsEmpty]: Start isEmpty. Operand 37745 states and 62090 transitions. [2022-10-16 17:04:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:04:31,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:31,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:31,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:04:31,861 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:04:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash 397592277, now seen corresponding path program 1 times [2022-10-16 17:04:31,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:31,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332687158] [2022-10-16 17:04:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:31,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:04:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:04:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:04:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:04:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:32,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:32,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332687158] [2022-10-16 17:04:32,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332687158] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:32,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:32,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:32,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728882255] [2022-10-16 17:04:32,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:32,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:32,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:32,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:32,141 INFO L87 Difference]: Start difference. First operand 37745 states and 62090 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:46,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:46,611 INFO L93 Difference]: Finished difference Result 135348 states and 224582 transitions. [2022-10-16 17:04:46,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:04:46,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:04:46,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:47,412 INFO L225 Difference]: With dead ends: 135348 [2022-10-16 17:04:47,412 INFO L226 Difference]: Without dead ends: 97620 [2022-10-16 17:04:47,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:04:47,546 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 1238 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:47,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2559 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 17:04:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97620 states. [2022-10-16 17:04:56,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97620 to 75394. [2022-10-16 17:04:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75394 states, 68945 states have (on average 1.5973747189788963) internal successors, (110131), 69221 states have internal predecessors, (110131), 4631 states have call successors, (4631), 1542 states have call predecessors, (4631), 1798 states have return successors, (11448), 4886 states have call predecessors, (11448), 4631 states have call successors, (11448) [2022-10-16 17:04:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75394 states to 75394 states and 126210 transitions. [2022-10-16 17:04:56,559 INFO L78 Accepts]: Start accepts. Automaton has 75394 states and 126210 transitions. Word has length 143 [2022-10-16 17:04:56,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:56,559 INFO L495 AbstractCegarLoop]: Abstraction has 75394 states and 126210 transitions. [2022-10-16 17:04:56,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:56,560 INFO L276 IsEmpty]: Start isEmpty. Operand 75394 states and 126210 transitions. [2022-10-16 17:04:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:04:56,600 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:56,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:56,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:04:56,601 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:04:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1968442793, now seen corresponding path program 1 times [2022-10-16 17:04:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:56,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949955850] [2022-10-16 17:04:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:57,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:57,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:04:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:04:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:04:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:04:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:57,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:57,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949955850] [2022-10-16 17:04:57,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949955850] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:57,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:57,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137152552] [2022-10-16 17:04:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:57,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:57,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:57,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:57,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:57,215 INFO L87 Difference]: Start difference. First operand 75394 states and 126210 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:05:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:34,459 INFO L93 Difference]: Finished difference Result 304355 states and 508862 transitions. [2022-10-16 17:05:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:05:34,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 143 [2022-10-16 17:05:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:35,756 INFO L225 Difference]: With dead ends: 304355 [2022-10-16 17:05:35,756 INFO L226 Difference]: Without dead ends: 228978 [2022-10-16 17:05:36,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:05:36,205 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 1606 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:36,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 2544 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 17:05:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228978 states. [2022-10-16 17:05:53,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228978 to 149923. [2022-10-16 17:05:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149923 states, 137330 states have (on average 1.5965411781839365) internal successors, (219253), 137862 states have internal predecessors, (219253), 8983 states have call successors, (8983), 3078 states have call predecessors, (8983), 3590 states have return successors, (29178), 9494 states have call predecessors, (29178), 8983 states have call successors, (29178) [2022-10-16 17:05:55,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149923 states to 149923 states and 257414 transitions. [2022-10-16 17:05:55,177 INFO L78 Accepts]: Start accepts. Automaton has 149923 states and 257414 transitions. Word has length 143 [2022-10-16 17:05:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:55,178 INFO L495 AbstractCegarLoop]: Abstraction has 149923 states and 257414 transitions. [2022-10-16 17:05:55,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:05:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 149923 states and 257414 transitions. [2022-10-16 17:05:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 17:05:55,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:55,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:55,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:05:55,750 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 17:05:55,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:55,750 INFO L85 PathProgramCache]: Analyzing trace with hash 33443477, now seen corresponding path program 1 times [2022-10-16 17:05:55,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:55,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982483754] [2022-10-16 17:05:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:55,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 17:05:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 17:05:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 17:05:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 17:05:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:05:55,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:55,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982483754] [2022-10-16 17:05:56,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982483754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:56,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:56,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762615718] [2022-10-16 17:05:56,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:56,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:56,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:56,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:56,003 INFO L87 Difference]: Start difference. First operand 149923 states and 257414 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)