/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.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:05:07,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:05:07,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:05:07,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:05:07,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:05:07,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:05:07,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:05:07,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:05:07,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:05:07,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:05:07,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:05:07,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:05:07,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:05:07,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:05:07,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:05:07,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:05:07,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:05:07,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:05:07,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:05:07,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:05:07,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:05:07,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:05:07,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:05:07,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:05:07,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:05:07,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:05:07,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:05:07,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:05:07,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:05:07,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:05:07,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:05:07,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:05:07,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:05:07,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:05:07,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:05:07,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:05:07,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:05:07,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:05:07,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:05:07,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:05:07,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:05:07,252 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 17:05:07,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:05:07,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:05:07,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:05:07,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:05:07,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:05:07,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:05:07,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:05:07,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:05:07,322 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:05:07,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:05:07,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:05:07,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:05:07,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:05:07,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:05:07,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:05:07,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:05:07,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:05:07,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:05:07,325 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:05:07,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:05:07,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:05:07,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:05:07,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:05:07,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:05:07,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:05:07,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:05:07,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:05:07,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:05:07,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:05:07,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:05:07,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:05:07,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:05:07,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:05:07,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:05:07,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:05:07,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:05:07,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:05:07,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:05:07,767 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:05:07,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.10.cil-2.c [2022-10-16 17:05:07,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc6a6ddf/837e3e0d3ef1454f97b410320eb2e18d/FLAG9bafe39ea [2022-10-16 17:05:08,554 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:05:08,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.10.cil-2.c [2022-10-16 17:05:08,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc6a6ddf/837e3e0d3ef1454f97b410320eb2e18d/FLAG9bafe39ea [2022-10-16 17:05:08,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc6a6ddf/837e3e0d3ef1454f97b410320eb2e18d [2022-10-16 17:05:08,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:05:08,893 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:05:08,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:05:08,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:05:08,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:05:08,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:05:08" (1/1) ... [2022-10-16 17:05:08,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1a6972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:08, skipping insertion in model container [2022-10-16 17:05:08,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:05:08" (1/1) ... [2022-10-16 17:05:08,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:05:08,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:05:09,229 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.10.cil-2.c[671,684] [2022-10-16 17:05:09,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:05:09,431 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:05:09,455 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.10.cil-2.c[671,684] [2022-10-16 17:05:09,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:05:09,597 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:05:09,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09 WrapperNode [2022-10-16 17:05:09,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:05:09,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:05:09,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:05:09,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:05:09,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,735 INFO L138 Inliner]: procedures = 48, calls = 61, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 759 [2022-10-16 17:05:09,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:05:09,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:05:09,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:05:09,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:05:09,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:05:09,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:05:09,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:05:09,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:05:09,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (1/1) ... [2022-10-16 17:05:09,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:05:09,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:05:09,903 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 17:05:09,915 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 17:05:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:05:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 17:05:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 17:05:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 17:05:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 17:05:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 17:05:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 17:05:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 17:05:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 17:05:09,963 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 17:05:09,963 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 17:05:09,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:05:09,963 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 17:05:09,963 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 17:05:09,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:05:09,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:05:10,081 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:05:10,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:05:11,124 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:05:11,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:05:11,146 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-10-16 17:05:11,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:05:11 BoogieIcfgContainer [2022-10-16 17:05:11,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:05:11,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:05:11,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:05:11,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:05:11,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:05:08" (1/3) ... [2022-10-16 17:05:11,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29024a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:05:11, skipping insertion in model container [2022-10-16 17:05:11,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:05:09" (2/3) ... [2022-10-16 17:05:11,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29024a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:05:11, skipping insertion in model container [2022-10-16 17:05:11,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:05:11" (3/3) ... [2022-10-16 17:05:11,164 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.10.cil-2.c [2022-10-16 17:05:11,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:05:11,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-10-16 17:05:11,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:05:11,307 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;@251c78e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:05:11,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-10-16 17:05:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 365 states, 312 states have (on average 1.6987179487179487) internal successors, (530), 335 states have internal predecessors, (530), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 17:05:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:11,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:11,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:11,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:11,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:11,361 INFO L85 PathProgramCache]: Analyzing trace with hash -100349060, now seen corresponding path program 1 times [2022-10-16 17:05:11,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:11,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494769445] [2022-10-16 17:05:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:11,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:12,188 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 17:05:12,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:12,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494769445] [2022-10-16 17:05:12,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494769445] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:12,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:12,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:05:12,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976510440] [2022-10-16 17:05:12,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:12,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:05:12,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:05:12,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:05:12,235 INFO L87 Difference]: Start difference. First operand has 365 states, 312 states have (on average 1.6987179487179487) internal successors, (530), 335 states have internal predecessors, (530), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 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 17:05:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:13,997 INFO L93 Difference]: Finished difference Result 843 states and 1354 transitions. [2022-10-16 17:05:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:05:14,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:14,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:14,022 INFO L225 Difference]: With dead ends: 843 [2022-10-16 17:05:14,022 INFO L226 Difference]: Without dead ends: 479 [2022-10-16 17:05:14,030 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 17:05:14,034 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 917 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:14,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1012 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 17:05:14,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-10-16 17:05:14,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 359. [2022-10-16 17:05:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 307 states have (on average 1.6156351791530945) internal successors, (496), 329 states have internal predecessors, (496), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 17:05:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 544 transitions. [2022-10-16 17:05:14,201 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 544 transitions. Word has length 154 [2022-10-16 17:05:14,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:14,203 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 544 transitions. [2022-10-16 17:05:14,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 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 17:05:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 544 transitions. [2022-10-16 17:05:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:14,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:14,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:14,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:05:14,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:14,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash -2031474694, now seen corresponding path program 1 times [2022-10-16 17:05:14,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:14,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059391005] [2022-10-16 17:05:14,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:14,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:14,501 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 17:05:14,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:14,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059391005] [2022-10-16 17:05:14,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059391005] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:14,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:14,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:05:14,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390893753] [2022-10-16 17:05:14,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:14,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:05:14,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:05:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:05:14,506 INFO L87 Difference]: Start difference. First operand 359 states and 544 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 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 17:05:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:15,932 INFO L93 Difference]: Finished difference Result 824 states and 1272 transitions. [2022-10-16 17:05:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:05:15,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:15,942 INFO L225 Difference]: With dead ends: 824 [2022-10-16 17:05:15,942 INFO L226 Difference]: Without dead ends: 479 [2022-10-16 17:05:15,949 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 17:05:15,951 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 903 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:15,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 995 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 17:05:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-10-16 17:05:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 359. [2022-10-16 17:05:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 307 states have (on average 1.6123778501628665) internal successors, (495), 329 states have internal predecessors, (495), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-16 17:05:16,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 543 transitions. [2022-10-16 17:05:16,049 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 543 transitions. Word has length 154 [2022-10-16 17:05:16,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:16,051 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 543 transitions. [2022-10-16 17:05:16,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 3 states have internal predecessors, (144), 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 17:05:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 543 transitions. [2022-10-16 17:05:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:16,065 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:16,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:16,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:05:16,067 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:16,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash -243604872, now seen corresponding path program 1 times [2022-10-16 17:05:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:16,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729092348] [2022-10-16 17:05:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:16,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:16,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:16,452 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 17:05:16,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:16,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729092348] [2022-10-16 17:05:16,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729092348] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:16,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:16,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:05:16,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168257622] [2022-10-16 17:05:16,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:16,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:05:16,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:16,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:05:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:05:16,459 INFO L87 Difference]: Start difference. First operand 359 states and 543 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 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 17:05:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:19,362 INFO L93 Difference]: Finished difference Result 1295 states and 2014 transitions. [2022-10-16 17:05:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:05:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:19,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:19,370 INFO L225 Difference]: With dead ends: 1295 [2022-10-16 17:05:19,370 INFO L226 Difference]: Without dead ends: 954 [2022-10-16 17:05:19,372 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 17:05:19,374 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 1354 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:19,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 1713 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 17:05:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-10-16 17:05:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 695. [2022-10-16 17:05:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 617 states have (on average 1.6239870340356564) internal successors, (1002), 640 states have internal predecessors, (1002), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2022-10-16 17:05:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1091 transitions. [2022-10-16 17:05:19,494 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1091 transitions. Word has length 154 [2022-10-16 17:05:19,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:19,494 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 1091 transitions. [2022-10-16 17:05:19,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 4 states have internal predecessors, (144), 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 17:05:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1091 transitions. [2022-10-16 17:05:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:19,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:19,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:19,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:05:19,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:19,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1062114676, now seen corresponding path program 1 times [2022-10-16 17:05:19,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:19,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114991684] [2022-10-16 17:05:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:19,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:19,813 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 17:05:19,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:19,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114991684] [2022-10-16 17:05:19,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114991684] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:19,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:19,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:19,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172570161] [2022-10-16 17:05:19,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:19,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:19,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:19,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:19,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:19,817 INFO L87 Difference]: Start difference. First operand 695 states and 1091 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:23,410 INFO L93 Difference]: Finished difference Result 2102 states and 3336 transitions. [2022-10-16 17:05:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:05:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:23,423 INFO L225 Difference]: With dead ends: 2102 [2022-10-16 17:05:23,423 INFO L226 Difference]: Without dead ends: 1425 [2022-10-16 17:05:23,425 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 17:05:23,427 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 1376 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:23,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 2827 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 17:05:23,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2022-10-16 17:05:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1008. [2022-10-16 17:05:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 904 states have (on average 1.6183628318584071) internal successors, (1463), 928 states have internal predecessors, (1463), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2022-10-16 17:05:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1592 transitions. [2022-10-16 17:05:23,558 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1592 transitions. Word has length 154 [2022-10-16 17:05:23,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:23,559 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1592 transitions. [2022-10-16 17:05:23,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:23,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1592 transitions. [2022-10-16 17:05:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:23,562 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:23,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:23,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:05:23,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1425581174, now seen corresponding path program 1 times [2022-10-16 17:05:23,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:23,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158629662] [2022-10-16 17:05:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:23,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:23,817 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 17:05:23,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:23,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158629662] [2022-10-16 17:05:23,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158629662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:23,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:23,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:23,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058588981] [2022-10-16 17:05:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:23,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:23,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:23,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:23,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:23,820 INFO L87 Difference]: Start difference. First operand 1008 states and 1592 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:27,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:27,348 INFO L93 Difference]: Finished difference Result 3292 states and 5271 transitions. [2022-10-16 17:05:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:05:27,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:27,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:27,364 INFO L225 Difference]: With dead ends: 3292 [2022-10-16 17:05:27,364 INFO L226 Difference]: Without dead ends: 2302 [2022-10-16 17:05:27,368 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 17:05:27,369 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 1472 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:27,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1900 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 17:05:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-10-16 17:05:27,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1635. [2022-10-16 17:05:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1479 states have (on average 1.6132521974306964) internal successors, (2386), 1505 states have internal predecessors, (2386), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2022-10-16 17:05:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2599 transitions. [2022-10-16 17:05:27,623 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2599 transitions. Word has length 154 [2022-10-16 17:05:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:27,623 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2599 transitions. [2022-10-16 17:05:27,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2599 transitions. [2022-10-16 17:05:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:27,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:27,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:27,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:05:27,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1714400564, now seen corresponding path program 1 times [2022-10-16 17:05:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:27,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65097727] [2022-10-16 17:05:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:27,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:27,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:27,897 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 17:05:27,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:27,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65097727] [2022-10-16 17:05:27,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65097727] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:27,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:27,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:27,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567377800] [2022-10-16 17:05:27,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:27,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:27,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:27,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:27,901 INFO L87 Difference]: Start difference. First operand 1635 states and 2599 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:31,782 INFO L93 Difference]: Finished difference Result 5580 states and 8974 transitions. [2022-10-16 17:05:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:05:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:31,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:31,810 INFO L225 Difference]: With dead ends: 5580 [2022-10-16 17:05:31,810 INFO L226 Difference]: Without dead ends: 3963 [2022-10-16 17:05:31,818 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 17:05:31,821 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 1370 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 2734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:31,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 2811 Invalid, 2734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 17:05:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2022-10-16 17:05:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 2895. [2022-10-16 17:05:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2635 states have (on average 1.6098671726755218) internal successors, (4242), 2665 states have internal predecessors, (4242), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2022-10-16 17:05:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 4629 transitions. [2022-10-16 17:05:32,263 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 4629 transitions. Word has length 154 [2022-10-16 17:05:32,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:32,264 INFO L495 AbstractCegarLoop]: Abstraction has 2895 states and 4629 transitions. [2022-10-16 17:05:32,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 4629 transitions. [2022-10-16 17:05:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:32,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:32,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:32,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:05:32,269 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:32,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:32,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1905406606, now seen corresponding path program 1 times [2022-10-16 17:05:32,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:32,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064497621] [2022-10-16 17:05:32,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:32,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:32,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:32,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:32,558 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 17:05:32,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:32,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064497621] [2022-10-16 17:05:32,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064497621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:32,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:32,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:32,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638996361] [2022-10-16 17:05:32,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:32,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:32,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:32,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:32,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:32,561 INFO L87 Difference]: Start difference. First operand 2895 states and 4629 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:37,054 INFO L93 Difference]: Finished difference Result 10166 states and 16414 transitions. [2022-10-16 17:05:37,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:05:37,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:37,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:37,099 INFO L225 Difference]: With dead ends: 10166 [2022-10-16 17:05:37,100 INFO L226 Difference]: Without dead ends: 7289 [2022-10-16 17:05:37,112 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 17:05:37,113 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 1369 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:37,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 2806 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 17:05:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2022-10-16 17:05:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 5420. [2022-10-16 17:05:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 4952 states have (on average 1.6074313408723748) internal successors, (7960), 4990 states have internal predecessors, (7960), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2022-10-16 17:05:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 8713 transitions. [2022-10-16 17:05:37,959 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 8713 transitions. Word has length 154 [2022-10-16 17:05:37,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:37,960 INFO L495 AbstractCegarLoop]: Abstraction has 5420 states and 8713 transitions. [2022-10-16 17:05:37,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 8713 transitions. [2022-10-16 17:05:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:37,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:37,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:37,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:05:37,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:37,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1441508724, now seen corresponding path program 1 times [2022-10-16 17:05:37,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:37,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391742346] [2022-10-16 17:05:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:37,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:38,237 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 17:05:38,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:38,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391742346] [2022-10-16 17:05:38,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391742346] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:38,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:38,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:38,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459910140] [2022-10-16 17:05:38,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:38,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:38,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:38,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:38,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:38,240 INFO L87 Difference]: Start difference. First operand 5420 states and 8713 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:43,303 INFO L93 Difference]: Finished difference Result 19337 states and 31352 transitions. [2022-10-16 17:05:43,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:05:43,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:43,376 INFO L225 Difference]: With dead ends: 19337 [2022-10-16 17:05:43,376 INFO L226 Difference]: Without dead ends: 13935 [2022-10-16 17:05:43,396 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 17:05:43,397 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 1368 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:43,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 2801 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-16 17:05:43,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13935 states. [2022-10-16 17:05:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13935 to 10485. [2022-10-16 17:05:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10485 states, 9601 states have (on average 1.6058743880845745) internal successors, (15418), 9655 states have internal predecessors, (15418), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2022-10-16 17:05:45,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10485 states to 10485 states and 16957 transitions. [2022-10-16 17:05:45,257 INFO L78 Accepts]: Start accepts. Automaton has 10485 states and 16957 transitions. Word has length 154 [2022-10-16 17:05:45,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:45,258 INFO L495 AbstractCegarLoop]: Abstraction has 10485 states and 16957 transitions. [2022-10-16 17:05:45,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 10485 states and 16957 transitions. [2022-10-16 17:05:45,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:45,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:45,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:45,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:05:45,268 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:45,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:45,269 INFO L85 PathProgramCache]: Analyzing trace with hash 856737074, now seen corresponding path program 1 times [2022-10-16 17:05:45,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:45,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487611038] [2022-10-16 17:05:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:45,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:45,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:45,544 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 17:05:45,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:45,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487611038] [2022-10-16 17:05:45,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487611038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:45,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:45,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406091889] [2022-10-16 17:05:45,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:45,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:45,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:45,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:45,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:45,548 INFO L87 Difference]: Start difference. First operand 10485 states and 16957 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:05:52,581 INFO L93 Difference]: Finished difference Result 37680 states and 61422 transitions. [2022-10-16 17:05:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:05:52,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:05:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:05:52,721 INFO L225 Difference]: With dead ends: 37680 [2022-10-16 17:05:52,721 INFO L226 Difference]: Without dead ends: 27213 [2022-10-16 17:05:52,782 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 17:05:52,785 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 1367 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:05:52,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 2796 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2632 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 17:05:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27213 states. [2022-10-16 17:05:55,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27213 to 20646. [2022-10-16 17:05:55,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20646 states, 18930 states have (on average 1.6048600105652404) internal successors, (30380), 19016 states have internal predecessors, (30380), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2022-10-16 17:05:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20646 states to 20646 states and 33653 transitions. [2022-10-16 17:05:55,811 INFO L78 Accepts]: Start accepts. Automaton has 20646 states and 33653 transitions. Word has length 154 [2022-10-16 17:05:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:55,811 INFO L495 AbstractCegarLoop]: Abstraction has 20646 states and 33653 transitions. [2022-10-16 17:05:55,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:05:55,813 INFO L276 IsEmpty]: Start isEmpty. Operand 20646 states and 33653 transitions. [2022-10-16 17:05:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:05:55,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:55,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:55,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:05:55,832 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:05:55,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:55,833 INFO L85 PathProgramCache]: Analyzing trace with hash 422231476, now seen corresponding path program 1 times [2022-10-16 17:05:55,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:55,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885138339] [2022-10-16 17:05:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:05:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:05:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:56,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:05:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:56,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:05:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:56,186 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 17:05:56,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:56,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885138339] [2022-10-16 17:05:56,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885138339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:56,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:56,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:56,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624543648] [2022-10-16 17:05:56,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:56,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:56,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:56,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:56,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:56,190 INFO L87 Difference]: Start difference. First operand 20646 states and 33653 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:06:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:07,239 INFO L93 Difference]: Finished difference Result 74367 states and 122164 transitions. [2022-10-16 17:06:07,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:06:07,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:06:07,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:07,495 INFO L225 Difference]: With dead ends: 74367 [2022-10-16 17:06:07,495 INFO L226 Difference]: Without dead ends: 53739 [2022-10-16 17:06:07,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:06:07,569 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 1366 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:07,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 2791 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 17:06:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53739 states. [2022-10-16 17:06:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53739 to 41031. [2022-10-16 17:06:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41031 states, 37651 states have (on average 1.6041539401343923) internal successors, (60398), 37801 states have internal predecessors, (60398), 2456 states have call successors, (2456), 774 states have call predecessors, (2456), 902 states have return successors, (4771), 2583 states have call predecessors, (4771), 2456 states have call successors, (4771) [2022-10-16 17:06:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41031 states to 41031 states and 67625 transitions. [2022-10-16 17:06:12,954 INFO L78 Accepts]: Start accepts. Automaton has 41031 states and 67625 transitions. Word has length 154 [2022-10-16 17:06:12,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:12,954 INFO L495 AbstractCegarLoop]: Abstraction has 41031 states and 67625 transitions. [2022-10-16 17:06:12,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:06:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 41031 states and 67625 transitions. [2022-10-16 17:06:12,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:06:12,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:12,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:12,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:06:12,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:06:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -7426830, now seen corresponding path program 1 times [2022-10-16 17:06:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:12,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972733091] [2022-10-16 17:06:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:06:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:06:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:06:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:06:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:13,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:06:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:13,211 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 17:06:13,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:13,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972733091] [2022-10-16 17:06:13,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972733091] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:13,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:13,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:06:13,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085145285] [2022-10-16 17:06:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:13,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:06:13,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:13,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:06:13,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:06:13,214 INFO L87 Difference]: Start difference. First operand 41031 states and 67625 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:06:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:31,873 INFO L93 Difference]: Finished difference Result 147742 states and 245498 transitions. [2022-10-16 17:06:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:06:31,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:06:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:32,885 INFO L225 Difference]: With dead ends: 147742 [2022-10-16 17:06:32,885 INFO L226 Difference]: Without dead ends: 106729 [2022-10-16 17:06:33,061 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 17:06:33,063 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 1365 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2616 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:33,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 2786 Invalid, 2694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2616 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 17:06:33,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106729 states. [2022-10-16 17:06:43,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106729 to 81928. [2022-10-16 17:06:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81928 states, 75220 states have (on average 1.603616059558628) internal successors, (120624), 75498 states have internal predecessors, (120624), 4888 states have call successors, (4888), 1542 states have call predecessors, (4888), 1798 states have return successors, (11705), 5143 states have call predecessors, (11705), 4888 states have call successors, (11705) [2022-10-16 17:06:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81928 states to 81928 states and 137217 transitions. [2022-10-16 17:06:44,904 INFO L78 Accepts]: Start accepts. Automaton has 81928 states and 137217 transitions. Word has length 154 [2022-10-16 17:06:44,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:44,905 INFO L495 AbstractCegarLoop]: Abstraction has 81928 states and 137217 transitions. [2022-10-16 17:06:44,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:06:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 81928 states and 137217 transitions. [2022-10-16 17:06:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:06:44,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:44,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:44,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:06:44,957 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-10-16 17:06:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -714023436, now seen corresponding path program 1 times [2022-10-16 17:06:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:44,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652504941] [2022-10-16 17:06:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:44,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:06:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 17:06:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 17:06:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 17:06:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 17:06:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,195 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 17:06:45,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:45,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652504941] [2022-10-16 17:06:45,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652504941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:45,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:45,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:06:45,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573315694] [2022-10-16 17:06:45,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:45,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:06:45,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:45,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:06:45,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:06:45,198 INFO L87 Difference]: Start difference. First operand 81928 states and 137217 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 17:07:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:20,259 INFO L93 Difference]: Finished difference Result 294493 states and 497808 transitions. [2022-10-16 17:07:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:07:20,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 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 154 [2022-10-16 17:07:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:21,596 INFO L225 Difference]: With dead ends: 294493 [2022-10-16 17:07:21,597 INFO L226 Difference]: Without dead ends: 212583 [2022-10-16 17:07:22,070 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 17:07:22,071 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1448 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 2444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:22,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1875 Invalid, 2444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-16 17:07:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212583 states.