/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/list-simple/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:23:36,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:23:36,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:23:36,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:23:36,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:23:36,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:23:36,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:23:36,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:23:36,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:23:36,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:23:36,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:23:36,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:23:36,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:23:36,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:23:36,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:23:36,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:23:37,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:23:37,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:23:37,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:23:37,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:23:37,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:23:37,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:23:37,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:23:37,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:23:37,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:23:37,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:23:37,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:23:37,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:23:37,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:23:37,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:23:37,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:23:37,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:23:37,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:23:37,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:23:37,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:23:37,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:23:37,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:23:37,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:23:37,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:23:37,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:23:37,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:23:37,053 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 14:23:37,109 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:23:37,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:23:37,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:23:37,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:23:37,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:23:37,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:23:37,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:23:37,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:23:37,113 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:23:37,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:23:37,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:23:37,114 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:23:37,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:23:37,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:23:37,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:23:37,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:23:37,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:23:37,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:23:37,115 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:23:37,116 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:23:37,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:23:37,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:23:37,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:23:37,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:23:37,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:23:37,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:23:37,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:23:37,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:23:37,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:23:37,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:23:37,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:23:37,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:23:37,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:23:37,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:23:37,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:23:37,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:23:37,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:23:37,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:23:37,548 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:23:37,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2n_insert_unequal.i [2022-10-16 14:23:37,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10faf9a5/72a0462002284fd084243d12d96aae24/FLAG39cdc9f58 [2022-10-16 14:23:38,329 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:23:38,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_insert_unequal.i [2022-10-16 14:23:38,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10faf9a5/72a0462002284fd084243d12d96aae24/FLAG39cdc9f58 [2022-10-16 14:23:38,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10faf9a5/72a0462002284fd084243d12d96aae24 [2022-10-16 14:23:38,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:23:38,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:23:38,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:23:38,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:23:38,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:23:38,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:23:38" (1/1) ... [2022-10-16 14:23:38,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddf66d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:38, skipping insertion in model container [2022-10-16 14:23:38,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:23:38" (1/1) ... [2022-10-16 14:23:38,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:23:38,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:23:39,188 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/list-simple/sll2n_insert_unequal.i[24620,24633] [2022-10-16 14:23:39,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:23:39,208 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:23:39,283 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/list-simple/sll2n_insert_unequal.i[24620,24633] [2022-10-16 14:23:39,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:23:39,320 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:23:39,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39 WrapperNode [2022-10-16 14:23:39,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:23:39,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:23:39,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:23:39,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:23:39,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,385 INFO L138 Inliner]: procedures = 128, calls = 36, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 162 [2022-10-16 14:23:39,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:23:39,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:23:39,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:23:39,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:23:39,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:23:39,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:23:39,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:23:39,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:23:39,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (1/1) ... [2022-10-16 14:23:39,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:23:39,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:39,522 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 14:23:39,559 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 14:23:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:23:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:23:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-10-16 14:23:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-10-16 14:23:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:23:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:23:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:23:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:23:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:23:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:23:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 14:23:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:23:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:23:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:23:39,889 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:23:39,892 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:23:40,167 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:23:40,174 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:23:40,175 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 14:23:40,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:40 BoogieIcfgContainer [2022-10-16 14:23:40,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:23:40,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:23:40,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:23:40,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:23:40,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:23:38" (1/3) ... [2022-10-16 14:23:40,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592c02a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:23:40, skipping insertion in model container [2022-10-16 14:23:40,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:39" (2/3) ... [2022-10-16 14:23:40,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592c02a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:23:40, skipping insertion in model container [2022-10-16 14:23:40,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:40" (3/3) ... [2022-10-16 14:23:40,188 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.i [2022-10-16 14:23:40,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:23:40,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 14:23:40,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:23:40,281 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;@38a1a6ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:23:40,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 14:23:40,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 43 states have (on average 1.697674418604651) internal successors, (73), 57 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:23:40,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:40,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:23:40,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 889968454, now seen corresponding path program 1 times [2022-10-16 14:23:40,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:40,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235566943] [2022-10-16 14:23:40,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:40,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:40,520 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 14:23:40,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:40,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235566943] [2022-10-16 14:23:40,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235566943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:40,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:40,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:23:40,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132865836] [2022-10-16 14:23:40,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:40,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 14:23:40,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:40,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 14:23:40,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:23:40,570 INFO L87 Difference]: Start difference. First operand has 61 states, 43 states have (on average 1.697674418604651) internal successors, (73), 57 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:23:40,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:40,603 INFO L93 Difference]: Finished difference Result 112 states and 141 transitions. [2022-10-16 14:23:40,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 14:23:40,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 14:23:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:40,616 INFO L225 Difference]: With dead ends: 112 [2022-10-16 14:23:40,616 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:23:40,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:23:40,626 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:40,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:23:40,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-16 14:23:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.5) internal successors, (54), 49 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-10-16 14:23:40,680 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 6 [2022-10-16 14:23:40,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:40,681 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-10-16 14:23:40,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:23:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-10-16 14:23:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:23:40,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:40,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:23:40,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:23:40,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:40,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:40,684 INFO L85 PathProgramCache]: Analyzing trace with hash 889610962, now seen corresponding path program 1 times [2022-10-16 14:23:40,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:40,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668960028] [2022-10-16 14:23:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:40,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:40,876 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 14:23:40,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:40,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668960028] [2022-10-16 14:23:40,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668960028] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:40,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:40,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:23:40,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879345597] [2022-10-16 14:23:40,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:40,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:23:40,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:23:40,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:23:40,885 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:23:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:40,912 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2022-10-16 14:23:40,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:23:40,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 14:23:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:40,914 INFO L225 Difference]: With dead ends: 104 [2022-10-16 14:23:40,915 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:23:40,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:23:40,917 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 6 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:40,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 110 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:40,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:23:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2022-10-16 14:23:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 50 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-10-16 14:23:40,930 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 6 [2022-10-16 14:23:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:40,930 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-10-16 14:23:40,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:23:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-10-16 14:23:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:23:40,931 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:40,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:40,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:23:40,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:40,933 INFO L85 PathProgramCache]: Analyzing trace with hash 418688236, now seen corresponding path program 1 times [2022-10-16 14:23:40,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:40,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784322998] [2022-10-16 14:23:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:40,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:41,175 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 14:23:41,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:41,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784322998] [2022-10-16 14:23:41,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784322998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:41,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:41,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:23:41,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882293054] [2022-10-16 14:23:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:41,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:23:41,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:41,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:23:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:23:41,182 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:23:41,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:41,313 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-10-16 14:23:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:23:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 14:23:41,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:41,316 INFO L225 Difference]: With dead ends: 61 [2022-10-16 14:23:41,316 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 14:23:41,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:41,318 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 5 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:41,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 192 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:41,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 14:23:41,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2022-10-16 14:23:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.45) internal successors, (58), 53 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2022-10-16 14:23:41,329 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 12 [2022-10-16 14:23:41,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:41,330 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2022-10-16 14:23:41,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:23:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2022-10-16 14:23:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:23:41,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:41,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:41,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:23:41,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:41,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:41,333 INFO L85 PathProgramCache]: Analyzing trace with hash 94433476, now seen corresponding path program 1 times [2022-10-16 14:23:41,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:41,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353304377] [2022-10-16 14:23:41,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:41,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:41,521 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 14:23:41,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353304377] [2022-10-16 14:23:41,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353304377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:41,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:41,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:23:41,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254462924] [2022-10-16 14:23:41,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:41,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:23:41,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:41,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:23:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:23:41,525 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:23:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:41,640 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-10-16 14:23:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:23:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 14:23:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:41,645 INFO L225 Difference]: With dead ends: 60 [2022-10-16 14:23:41,645 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:23:41,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:41,651 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 2 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:41,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:41,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:23:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:23:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 54 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 14:23:41,673 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 13 [2022-10-16 14:23:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:41,674 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 14:23:41,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:23:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 14:23:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:23:41,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:41,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:41,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:23:41,679 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:41,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:41,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1988427476, now seen corresponding path program 1 times [2022-10-16 14:23:41,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:41,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976492981] [2022-10-16 14:23:41,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:41,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:41,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:41,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:23:41,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:41,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976492981] [2022-10-16 14:23:41,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976492981] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257303245] [2022-10-16 14:23:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:41,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:41,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:41,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:41,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:23:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:42,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:23:42,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:23:42,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:23:42,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257303245] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:42,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:42,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-10-16 14:23:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133623057] [2022-10-16 14:23:42,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:42,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:23:42,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:42,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:23:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:23:42,273 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:42,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:42,410 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2022-10-16 14:23:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:23:42,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-10-16 14:23:42,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:42,416 INFO L225 Difference]: With dead ends: 103 [2022-10-16 14:23:42,416 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 14:23:42,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:23:42,423 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:42,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 193 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 14:23:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-10-16 14:23:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 55 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2022-10-16 14:23:42,449 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 17 [2022-10-16 14:23:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:42,449 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2022-10-16 14:23:42,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-10-16 14:23:42,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:23:42,451 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:42,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:23:42,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:42,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:42,653 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:42,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2044378990, now seen corresponding path program 1 times [2022-10-16 14:23:42,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:42,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316604505] [2022-10-16 14:23:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:42,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:42,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:23:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:42,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316604505] [2022-10-16 14:23:42,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316604505] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:42,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105012503] [2022-10-16 14:23:42,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:42,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:42,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:42,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:42,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:23:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:42,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:23:42,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:23:43,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:23:43,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105012503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:43,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:23:43,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-10-16 14:23:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310243386] [2022-10-16 14:23:43,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:43,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:23:43,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:43,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:23:43,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:23:43,101 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:43,165 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-10-16 14:23:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:23:43,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-10-16 14:23:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:43,171 INFO L225 Difference]: With dead ends: 60 [2022-10-16 14:23:43,171 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:23:43,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:23:43,181 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 90 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:43,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 169 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:23:43,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:23:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 54 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 14:23:43,201 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 23 [2022-10-16 14:23:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:43,201 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 14:23:43,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 14:23:43,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:23:43,208 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:43,208 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:23:43,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:43,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 14:23:43,423 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1048760702, now seen corresponding path program 1 times [2022-10-16 14:23:43,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:43,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448846779] [2022-10-16 14:23:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:43,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:23:43,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:43,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448846779] [2022-10-16 14:23:43,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448846779] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:43,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:43,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:23:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907288852] [2022-10-16 14:23:43,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:43,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:23:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:43,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:23:43,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:23:43,609 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:43,712 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-10-16 14:23:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:23:43,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-10-16 14:23:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:43,715 INFO L225 Difference]: With dead ends: 59 [2022-10-16 14:23:43,715 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 14:23:43,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:43,717 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 2 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:43,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 182 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 14:23:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 14:23:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.380952380952381) internal successors, (58), 53 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2022-10-16 14:23:43,728 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 24 [2022-10-16 14:23:43,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:43,729 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2022-10-16 14:23:43,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2022-10-16 14:23:43,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:23:43,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:43,731 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:43,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:23:43,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:43,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1248865682, now seen corresponding path program 2 times [2022-10-16 14:23:43,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:43,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579971092] [2022-10-16 14:23:43,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:43,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:23:43,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:43,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579971092] [2022-10-16 14:23:43,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579971092] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:43,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612232397] [2022-10-16 14:23:43,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:23:43,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:43,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:43,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:44,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:23:44,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:23:44,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:23:44,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:23:44,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:23:44,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:23:44,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612232397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:44,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:23:44,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 14:23:44,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674961006] [2022-10-16 14:23:44,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:44,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:23:44,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:44,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:23:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:44,160 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:23:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:44,172 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-10-16 14:23:44,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:23:44,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-10-16 14:23:44,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:44,173 INFO L225 Difference]: With dead ends: 58 [2022-10-16 14:23:44,174 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 14:23:44,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:44,175 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 34 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:44,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 56 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:44,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 14:23:44,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-16 14:23:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.3) internal successors, (52), 47 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-10-16 14:23:44,188 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 28 [2022-10-16 14:23:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:44,189 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-10-16 14:23:44,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:23:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-10-16 14:23:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 14:23:44,191 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:44,192 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:44,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:44,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:44,406 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash 126538844, now seen corresponding path program 1 times [2022-10-16 14:23:44,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:44,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311550463] [2022-10-16 14:23:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:44,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:44,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:44,717 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:23:44,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:44,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311550463] [2022-10-16 14:23:44,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311550463] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:44,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868219712] [2022-10-16 14:23:44,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:44,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:44,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:44,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:44,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:23:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:44,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:23:44,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:44,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:23:44,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868219712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:44,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:23:44,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 14:23:44,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595658364] [2022-10-16 14:23:44,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:44,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:23:44,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:23:44,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:23:44,932 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:44,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:44,972 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-10-16 14:23:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:23:44,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-10-16 14:23:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:44,974 INFO L225 Difference]: With dead ends: 52 [2022-10-16 14:23:44,974 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:23:44,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:23:44,976 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 58 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:44,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 108 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:44,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:23:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-16 14:23:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.275) internal successors, (51), 46 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-10-16 14:23:44,983 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 38 [2022-10-16 14:23:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:44,984 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-10-16 14:23:44,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:23:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-10-16 14:23:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:23:44,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:44,986 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:45,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:45,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:45,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:45,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash -372263059, now seen corresponding path program 1 times [2022-10-16 14:23:45,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:45,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985877283] [2022-10-16 14:23:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:45,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:45,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:45,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985877283] [2022-10-16 14:23:45,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985877283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:45,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:45,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:23:45,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112684976] [2022-10-16 14:23:45,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:45,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:23:45,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:45,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:23:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:23:45,327 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:45,365 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-10-16 14:23:45,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:23:45,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-10-16 14:23:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:45,366 INFO L225 Difference]: With dead ends: 51 [2022-10-16 14:23:45,366 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 14:23:45,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:23:45,368 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:45,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 14:23:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-16 14:23:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.25) internal successors, (50), 45 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2022-10-16 14:23:45,375 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 39 [2022-10-16 14:23:45,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:45,375 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2022-10-16 14:23:45,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2022-10-16 14:23:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:23:45,377 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:45,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:45,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:23:45,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash 665551672, now seen corresponding path program 1 times [2022-10-16 14:23:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:45,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812788549] [2022-10-16 14:23:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:45,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:45,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812788549] [2022-10-16 14:23:45,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812788549] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:45,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:45,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:23:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837275400] [2022-10-16 14:23:45,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:23:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:23:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:23:45,500 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:45,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:45,556 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-10-16 14:23:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:23:45,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-10-16 14:23:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:45,558 INFO L225 Difference]: With dead ends: 92 [2022-10-16 14:23:45,558 INFO L226 Difference]: Without dead ends: 72 [2022-10-16 14:23:45,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:23:45,560 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 22 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:45,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 118 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:45,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-16 14:23:45,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 52. [2022-10-16 14:23:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 47 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-10-16 14:23:45,568 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 43 [2022-10-16 14:23:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:45,568 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-10-16 14:23:45,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-10-16 14:23:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:23:45,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:45,570 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:45,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:23:45,571 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash 722809974, now seen corresponding path program 1 times [2022-10-16 14:23:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:45,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664473779] [2022-10-16 14:23:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:45,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:45,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:45,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664473779] [2022-10-16 14:23:45,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664473779] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:45,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:45,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:23:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471686017] [2022-10-16 14:23:45,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:45,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:23:45,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:45,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:23:45,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:23:45,722 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:45,783 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-10-16 14:23:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:23:45,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-10-16 14:23:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:45,785 INFO L225 Difference]: With dead ends: 64 [2022-10-16 14:23:45,785 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 14:23:45,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:45,786 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 9 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:45,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 142 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 14:23:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2022-10-16 14:23:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 51 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:45,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-10-16 14:23:45,797 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 43 [2022-10-16 14:23:45,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:45,803 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-10-16 14:23:45,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-10-16 14:23:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 14:23:45,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:45,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:45,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:23:45,805 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash 932221275, now seen corresponding path program 1 times [2022-10-16 14:23:45,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:45,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021528192] [2022-10-16 14:23:45,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:45,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:45,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:45,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021528192] [2022-10-16 14:23:45,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021528192] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:45,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:45,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:23:45,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748435259] [2022-10-16 14:23:45,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:45,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:23:45,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:23:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:23:45,954 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:46,012 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2022-10-16 14:23:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:23:46,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-10-16 14:23:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:46,014 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:23:46,014 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 14:23:46,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:23:46,015 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 6 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:46,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 142 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:46,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 14:23:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-10-16 14:23:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.24) internal successors, (62), 55 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-10-16 14:23:46,021 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 44 [2022-10-16 14:23:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:46,022 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-10-16 14:23:46,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:46,022 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-10-16 14:23:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 14:23:46,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:46,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:46,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:23:46,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:46,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2081048815, now seen corresponding path program 1 times [2022-10-16 14:23:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:46,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775814077] [2022-10-16 14:23:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:46,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:46,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:46,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:46,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775814077] [2022-10-16 14:23:46,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775814077] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:46,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026162761] [2022-10-16 14:23:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:46,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:46,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:46,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:23:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:46,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:23:46,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:46,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:46,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026162761] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:46,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:46,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 14:23:46,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860609284] [2022-10-16 14:23:46,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:46,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:23:46,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:46,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:23:46,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:23:46,545 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:46,709 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2022-10-16 14:23:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:23:46,709 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-10-16 14:23:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:46,711 INFO L225 Difference]: With dead ends: 94 [2022-10-16 14:23:46,711 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 14:23:46,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:23:46,712 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:46,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 327 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:46,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 14:23:46,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 71. [2022-10-16 14:23:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 61 states have (on average 1.278688524590164) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2022-10-16 14:23:46,720 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 47 [2022-10-16 14:23:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:46,720 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2022-10-16 14:23:46,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2022-10-16 14:23:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 14:23:46,721 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:46,722 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:46,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:46,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 14:23:46,937 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:46,938 INFO L85 PathProgramCache]: Analyzing trace with hash 88003928, now seen corresponding path program 1 times [2022-10-16 14:23:46,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:46,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453107496] [2022-10-16 14:23:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:46,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,233 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:23:47,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:47,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453107496] [2022-10-16 14:23:47,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453107496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:47,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309184106] [2022-10-16 14:23:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:47,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:47,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:47,236 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:47,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:23:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:23:47,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:47,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:23:47,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309184106] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:47,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:23:47,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 14:23:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145677337] [2022-10-16 14:23:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:47,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:23:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:47,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:23:47,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:23:47,455 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:47,506 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2022-10-16 14:23:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:23:47,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-10-16 14:23:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:47,508 INFO L225 Difference]: With dead ends: 71 [2022-10-16 14:23:47,508 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 14:23:47,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:23:47,509 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 19 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:47,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 160 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 14:23:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 14:23:47,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 65 states have internal predecessors, (75), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2022-10-16 14:23:47,516 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 48 [2022-10-16 14:23:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:47,516 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2022-10-16 14:23:47,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2022-10-16 14:23:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 14:23:47,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:47,518 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 14:23:47,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:47,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:23:47,734 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:47,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 87952386, now seen corresponding path program 1 times [2022-10-16 14:23:47,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:47,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758908466] [2022-10-16 14:23:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:47,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:47,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:47,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758908466] [2022-10-16 14:23:47,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758908466] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:47,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340337582] [2022-10-16 14:23:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:47,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:47,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:47,919 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:47,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:23:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:48,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:23:48,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:48,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:48,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340337582] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:48,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:48,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 14:23:48,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325230459] [2022-10-16 14:23:48,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:48,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:23:48,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:48,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:23:48,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:23:48,189 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:48,348 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2022-10-16 14:23:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:23:48,348 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-10-16 14:23:48,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:48,349 INFO L225 Difference]: With dead ends: 87 [2022-10-16 14:23:48,350 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:23:48,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:23:48,351 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 52 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:48,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 241 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:48,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:23:48,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2022-10-16 14:23:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 64 states have (on average 1.21875) internal successors, (78), 68 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-16 14:23:48,376 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 48 [2022-10-16 14:23:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:48,378 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-16 14:23:48,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-16 14:23:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 14:23:48,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:48,379 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 14:23:48,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:48,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:48,585 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash -266793882, now seen corresponding path program 1 times [2022-10-16 14:23:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:48,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238583563] [2022-10-16 14:23:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:48,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:48,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:48,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238583563] [2022-10-16 14:23:48,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238583563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:48,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:23:48,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:23:48,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303322783] [2022-10-16 14:23:48,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:48,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:23:48,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:48,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:23:48,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:23:48,775 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:48,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:48,852 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2022-10-16 14:23:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:23:48,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-10-16 14:23:48,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:48,854 INFO L225 Difference]: With dead ends: 79 [2022-10-16 14:23:48,854 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 14:23:48,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:23:48,855 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:48,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 161 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:48,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 14:23:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2022-10-16 14:23:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.208955223880597) internal successors, (81), 71 states have internal predecessors, (81), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2022-10-16 14:23:48,863 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 48 [2022-10-16 14:23:48,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:48,863 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2022-10-16 14:23:48,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:48,863 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2022-10-16 14:23:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:23:48,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:48,864 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 14:23:48,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 14:23:48,865 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1568443214, now seen corresponding path program 1 times [2022-10-16 14:23:48,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:48,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174178200] [2022-10-16 14:23:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:48,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:23:49,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:49,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174178200] [2022-10-16 14:23:49,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174178200] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:49,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144644103] [2022-10-16 14:23:49,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:49,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:49,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:49,126 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:49,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:23:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:23:49,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:49,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:23:49,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144644103] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:49,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:23:49,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 14:23:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936972623] [2022-10-16 14:23:49,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:49,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:23:49,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:49,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:23:49,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:23:49,377 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:49,470 INFO L93 Difference]: Finished difference Result 82 states and 93 transitions. [2022-10-16 14:23:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:23:49,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-10-16 14:23:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:49,472 INFO L225 Difference]: With dead ends: 82 [2022-10-16 14:23:49,472 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 14:23:49,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:23:49,473 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 27 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:49,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 158 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:49,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 14:23:49,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2022-10-16 14:23:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 70 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2022-10-16 14:23:49,480 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 49 [2022-10-16 14:23:49,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:49,481 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2022-10-16 14:23:49,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2022-10-16 14:23:49,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:23:49,482 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:49,482 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 14:23:49,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:49,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:23:49,696 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:49,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash 319324384, now seen corresponding path program 1 times [2022-10-16 14:23:49,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:49,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513003251] [2022-10-16 14:23:49,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:49,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:23:49,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:49,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513003251] [2022-10-16 14:23:49,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513003251] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:49,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305124196] [2022-10-16 14:23:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:49,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:49,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:49,948 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:49,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:23:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:50,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:23:50,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:50,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:23:50,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305124196] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:23:50,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:23:50,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 14:23:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78031219] [2022-10-16 14:23:50,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:23:50,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:23:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:50,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:23:50,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:23:50,144 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:50,170 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2022-10-16 14:23:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:23:50,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-10-16 14:23:50,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:50,171 INFO L225 Difference]: With dead ends: 75 [2022-10-16 14:23:50,172 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:23:50,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:23:50,173 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:50,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 100 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:23:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:23:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 14:23:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 69 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:50,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2022-10-16 14:23:50,180 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 49 [2022-10-16 14:23:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:50,180 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2022-10-16 14:23:50,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:50,181 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2022-10-16 14:23:50,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 14:23:50,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:50,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 14:23:50,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:50,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:50,398 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:50,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:50,399 INFO L85 PathProgramCache]: Analyzing trace with hash -542450803, now seen corresponding path program 1 times [2022-10-16 14:23:50,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:50,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088868074] [2022-10-16 14:23:50,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:50,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:50,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:23:50,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:50,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088868074] [2022-10-16 14:23:50,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088868074] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:50,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563729256] [2022-10-16 14:23:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:50,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:50,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:50,681 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:50,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:23:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:50,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:23:50,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:50,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:23:51,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563729256] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:51,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:51,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2022-10-16 14:23:51,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557775932] [2022-10-16 14:23:51,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:51,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:23:51,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:23:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:23:51,035 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-16 14:23:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:51,388 INFO L93 Difference]: Finished difference Result 133 states and 152 transitions. [2022-10-16 14:23:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:23:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 52 [2022-10-16 14:23:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:51,390 INFO L225 Difference]: With dead ends: 133 [2022-10-16 14:23:51,391 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:23:51,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=898, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:23:51,392 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 104 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:51,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 295 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:23:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:23:51,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2022-10-16 14:23:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 73 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-10-16 14:23:51,401 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 52 [2022-10-16 14:23:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:51,402 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-10-16 14:23:51,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-16 14:23:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-10-16 14:23:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 14:23:51,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:51,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:51,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:51,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:51,619 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:51,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:51,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1639405311, now seen corresponding path program 1 times [2022-10-16 14:23:51,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:51,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426832175] [2022-10-16 14:23:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:51,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:51,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:51,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426832175] [2022-10-16 14:23:51,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426832175] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:51,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15434197] [2022-10-16 14:23:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:51,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:51,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:51,887 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:51,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:23:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:52,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:23:52,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:52,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:52,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15434197] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:52,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:52,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2022-10-16 14:23:52,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068276780] [2022-10-16 14:23:52,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:52,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:23:52,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:52,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:23:52,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:23:52,280 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:52,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:52,565 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2022-10-16 14:23:52,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 14:23:52,565 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-10-16 14:23:52,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:52,566 INFO L225 Difference]: With dead ends: 122 [2022-10-16 14:23:52,567 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 14:23:52,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:23:52,568 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 77 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:52,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:52,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 14:23:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2022-10-16 14:23:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 86 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2022-10-16 14:23:52,580 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 59 [2022-10-16 14:23:52,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:52,581 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2022-10-16 14:23:52,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2022-10-16 14:23:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 14:23:52,589 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:52,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:23:52,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:52,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 14:23:52,803 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:52,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1401714039, now seen corresponding path program 1 times [2022-10-16 14:23:52,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:52,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680612155] [2022-10-16 14:23:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:52,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:53,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:53,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:53,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680612155] [2022-10-16 14:23:53,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680612155] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:53,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334253692] [2022-10-16 14:23:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:53,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:53,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:53,055 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:53,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:23:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:53,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:23:53,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:53,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:53,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334253692] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:53,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:53,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2022-10-16 14:23:53,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527118946] [2022-10-16 14:23:53,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:53,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:23:53,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:53,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:23:53,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:23:53,453 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand has 21 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:53,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:53,627 INFO L93 Difference]: Finished difference Result 120 states and 136 transitions. [2022-10-16 14:23:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 14:23:53,628 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-10-16 14:23:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:53,629 INFO L225 Difference]: With dead ends: 120 [2022-10-16 14:23:53,630 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 14:23:53,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:23:53,631 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 52 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:53,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 196 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:53,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 14:23:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2022-10-16 14:23:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 104 states have (on average 1.1346153846153846) internal successors, (118), 106 states have internal predecessors, (118), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:53,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2022-10-16 14:23:53,644 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 59 [2022-10-16 14:23:53,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:53,645 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2022-10-16 14:23:53,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:53,645 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2022-10-16 14:23:53,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 14:23:53,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:53,647 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 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 14:23:53,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:53,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:23:53,860 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2012159732, now seen corresponding path program 1 times [2022-10-16 14:23:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:53,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483366707] [2022-10-16 14:23:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:54,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:54,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483366707] [2022-10-16 14:23:54,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483366707] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:54,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53577074] [2022-10-16 14:23:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:54,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:54,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:54,141 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:54,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:23:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:54,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:23:54,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:54,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:54,577 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:54,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53577074] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:54,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:54,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-10-16 14:23:54,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811499360] [2022-10-16 14:23:54,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:54,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:23:54,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:54,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:23:54,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:23:54,582 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:54,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:54,958 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2022-10-16 14:23:54,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 14:23:54,959 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2022-10-16 14:23:54,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:54,960 INFO L225 Difference]: With dead ends: 151 [2022-10-16 14:23:54,960 INFO L226 Difference]: Without dead ends: 150 [2022-10-16 14:23:54,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1309, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 14:23:54,962 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 97 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:54,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 379 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:54,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-10-16 14:23:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 108. [2022-10-16 14:23:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 103 states have internal predecessors, (115), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2022-10-16 14:23:54,974 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 63 [2022-10-16 14:23:54,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:54,975 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2022-10-16 14:23:54,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:54,975 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2022-10-16 14:23:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 14:23:54,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:54,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 14:23:55,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:55,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 14:23:55,193 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:55,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:55,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1419722192, now seen corresponding path program 1 times [2022-10-16 14:23:55,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:55,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437972337] [2022-10-16 14:23:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:55,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:55,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:55,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:55,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437972337] [2022-10-16 14:23:55,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437972337] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:55,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320844561] [2022-10-16 14:23:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:55,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:55,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:55,480 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:55,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:23:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:55,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:23:55,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:55,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:55,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320844561] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:55,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:55,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-10-16 14:23:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250607744] [2022-10-16 14:23:55,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:55,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:23:55,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:55,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:23:55,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:23:55,933 INFO L87 Difference]: Start difference. First operand 108 states and 121 transitions. Second operand has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:56,238 INFO L93 Difference]: Finished difference Result 155 states and 171 transitions. [2022-10-16 14:23:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 14:23:56,239 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2022-10-16 14:23:56,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:56,241 INFO L225 Difference]: With dead ends: 155 [2022-10-16 14:23:56,241 INFO L226 Difference]: Without dead ends: 154 [2022-10-16 14:23:56,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:23:56,243 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:56,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 324 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:23:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-10-16 14:23:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 112. [2022-10-16 14:23:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 105 states have (on average 1.1333333333333333) internal successors, (119), 107 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:56,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2022-10-16 14:23:56,255 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 63 [2022-10-16 14:23:56,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:56,256 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2022-10-16 14:23:56,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:56,256 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2022-10-16 14:23:56,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 14:23:56,257 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:56,257 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:23:56,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:56,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:56,473 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:56,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:56,474 INFO L85 PathProgramCache]: Analyzing trace with hash 223135995, now seen corresponding path program 1 times [2022-10-16 14:23:56,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:56,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842326493] [2022-10-16 14:23:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:56,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:56,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:56,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:56,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842326493] [2022-10-16 14:23:56,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842326493] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:56,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646838218] [2022-10-16 14:23:56,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:56,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:56,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:56,935 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:56,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:23:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:57,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:23:57,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:57,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:57,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646838218] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:57,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:57,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-10-16 14:23:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660269032] [2022-10-16 14:23:57,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:57,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 14:23:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 14:23:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 14:23:57,513 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand has 33 states, 32 states have (on average 2.65625) internal successors, (85), 32 states have internal predecessors, (85), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:57,915 INFO L93 Difference]: Finished difference Result 191 states and 218 transitions. [2022-10-16 14:23:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 14:23:57,916 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.65625) internal successors, (85), 32 states have internal predecessors, (85), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2022-10-16 14:23:57,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:57,918 INFO L225 Difference]: With dead ends: 191 [2022-10-16 14:23:57,918 INFO L226 Difference]: Without dead ends: 190 [2022-10-16 14:23:57,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:23:57,920 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 188 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:57,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 367 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:23:57,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-10-16 14:23:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 142. [2022-10-16 14:23:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 135 states have (on average 1.1555555555555554) internal successors, (156), 137 states have internal predecessors, (156), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2022-10-16 14:23:57,934 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 70 [2022-10-16 14:23:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:57,935 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2022-10-16 14:23:57,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.65625) internal successors, (85), 32 states have internal predecessors, (85), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2022-10-16 14:23:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 14:23:57,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:57,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 14:23:57,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 14:23:58,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:58,151 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:58,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:58,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1844778260, now seen corresponding path program 2 times [2022-10-16 14:23:58,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:58,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174483161] [2022-10-16 14:23:58,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:58,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:58,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:23:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:23:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:58,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:23:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:23:58,550 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:23:58,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174483161] [2022-10-16 14:23:58,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174483161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:23:58,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806880267] [2022-10-16 14:23:58,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:23:58,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:23:58,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:23:58,553 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:23:58,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:23:58,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:23:58,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:23:58,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:23:58,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:23:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:58,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:23:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:23:59,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806880267] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:23:59,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:23:59,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-10-16 14:23:59,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445208936] [2022-10-16 14:23:59,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:23:59,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 14:23:59,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:23:59,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 14:23:59,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 14:23:59,149 INFO L87 Difference]: Start difference. First operand 142 states and 162 transitions. Second operand has 33 states, 32 states have (on average 2.71875) internal successors, (87), 32 states have internal predecessors, (87), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:23:59,682 INFO L93 Difference]: Finished difference Result 205 states and 229 transitions. [2022-10-16 14:23:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-16 14:23:59,683 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 32 states have internal predecessors, (87), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2022-10-16 14:23:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:23:59,685 INFO L225 Difference]: With dead ends: 205 [2022-10-16 14:23:59,685 INFO L226 Difference]: Without dead ends: 203 [2022-10-16 14:23:59,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=574, Invalid=2396, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 14:23:59,688 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 174 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:23:59,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 415 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:23:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-16 14:23:59,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 138. [2022-10-16 14:23:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 131 states have (on average 1.1603053435114503) internal successors, (152), 133 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:23:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2022-10-16 14:23:59,704 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 71 [2022-10-16 14:23:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:23:59,705 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2022-10-16 14:23:59,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 32 states have internal predecessors, (87), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:23:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2022-10-16 14:23:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 14:23:59,706 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:23:59,707 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:23:59,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:23:59,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 14:23:59,923 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:23:59,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:23:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash -817831607, now seen corresponding path program 3 times [2022-10-16 14:23:59,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:23:59,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518230073] [2022-10-16 14:23:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:23:59,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:23:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:24:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:24:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:24:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:24:00,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:00,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518230073] [2022-10-16 14:24:00,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518230073] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:24:00,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822662999] [2022-10-16 14:24:00,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:24:00,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:24:00,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:24:00,374 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:24:00,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:24:00,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:24:00,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:24:00,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:24:00,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:24:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 14:24:01,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:24:01,361 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 14:24:01,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822662999] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:24:01,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:24:01,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2022-10-16 14:24:01,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845359647] [2022-10-16 14:24:01,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:24:01,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:24:01,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:01,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:24:01,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:24:01,364 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-16 14:24:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:02,508 INFO L93 Difference]: Finished difference Result 315 states and 353 transitions. [2022-10-16 14:24:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-10-16 14:24:02,508 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 75 [2022-10-16 14:24:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:02,510 INFO L225 Difference]: With dead ends: 315 [2022-10-16 14:24:02,510 INFO L226 Difference]: Without dead ends: 227 [2022-10-16 14:24:02,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=795, Invalid=3627, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 14:24:02,513 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 256 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:02,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 566 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:24:02,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-10-16 14:24:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 153. [2022-10-16 14:24:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 148 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:24:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 176 transitions. [2022-10-16 14:24:02,531 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 176 transitions. Word has length 75 [2022-10-16 14:24:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:02,532 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 176 transitions. [2022-10-16 14:24:02,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-16 14:24:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 176 transitions. [2022-10-16 14:24:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 14:24:02,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:02,533 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 14:24:02,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:24:02,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:24:02,747 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:02,747 INFO L85 PathProgramCache]: Analyzing trace with hash 412220013, now seen corresponding path program 2 times [2022-10-16 14:24:02,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:02,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725185496] [2022-10-16 14:24:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:24:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:24:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:24:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:24:03,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:03,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725185496] [2022-10-16 14:24:03,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725185496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:24:03,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301972662] [2022-10-16 14:24:03,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:24:03,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:24:03,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:24:03,199 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:24:03,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:24:03,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:24:03,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:24:03,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:24:03,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:24:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:24:03,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:24:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:24:03,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301972662] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:24:03,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:24:03,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 36 [2022-10-16 14:24:03,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12275485] [2022-10-16 14:24:03,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:24:03,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 14:24:03,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:03,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 14:24:03,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:24:03,849 INFO L87 Difference]: Start difference. First operand 153 states and 176 transitions. Second operand has 37 states, 36 states have (on average 2.6666666666666665) internal successors, (96), 36 states have internal predecessors, (96), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:24:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:04,256 INFO L93 Difference]: Finished difference Result 214 states and 244 transitions. [2022-10-16 14:24:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 14:24:04,256 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.6666666666666665) internal successors, (96), 36 states have internal predecessors, (96), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2022-10-16 14:24:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:04,258 INFO L225 Difference]: With dead ends: 214 [2022-10-16 14:24:04,258 INFO L226 Difference]: Without dead ends: 213 [2022-10-16 14:24:04,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=660, Invalid=1992, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:24:04,260 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 113 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:04,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 370 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:24:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-10-16 14:24:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 189. [2022-10-16 14:24:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 182 states have (on average 1.1318681318681318) internal successors, (206), 184 states have internal predecessors, (206), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:24:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 212 transitions. [2022-10-16 14:24:04,284 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 212 transitions. Word has length 75 [2022-10-16 14:24:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:04,284 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 212 transitions. [2022-10-16 14:24:04,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.6666666666666665) internal successors, (96), 36 states have internal predecessors, (96), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:24:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 212 transitions. [2022-10-16 14:24:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 14:24:04,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:04,286 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 14:24:04,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:24:04,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:24:04,501 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:04,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1157561324, now seen corresponding path program 4 times [2022-10-16 14:24:04,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:04,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019874750] [2022-10-16 14:24:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:04,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:24:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:24:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:04,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 14:24:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:24:04,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:04,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019874750] [2022-10-16 14:24:04,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019874750] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:24:04,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356420637] [2022-10-16 14:24:04,990 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:24:04,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:24:04,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:24:04,991 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:24:05,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:24:05,375 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:24:05,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:24:05,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 196 conjunts are in the unsatisfiable core [2022-10-16 14:24:05,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:24:05,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:24:05,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 14:24:05,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:24:05,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:24:05,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:05,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 14:24:05,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-10-16 14:24:06,166 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 14:24:06,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 14:24:06,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:24:06,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:24:06,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:24:06,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:06,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-10-16 14:24:06,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 14:24:06,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-10-16 14:24:06,901 INFO L356 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2022-10-16 14:24:06,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 67 [2022-10-16 14:24:06,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 14:24:06,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:24:06,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:06,937 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-16 14:24:06,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-10-16 14:24:07,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:07,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:07,176 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-10-16 14:24:07,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2022-10-16 14:24:07,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:07,208 INFO L356 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-10-16 14:24:07,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 121 treesize of output 101 [2022-10-16 14:24:07,232 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-10-16 14:24:07,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-10-16 14:24:07,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-10-16 14:24:08,067 INFO L356 Elim1Store]: treesize reduction 82, result has 51.2 percent of original size [2022-10-16 14:24:08,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 135 treesize of output 152 [2022-10-16 14:24:08,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:08,193 INFO L356 Elim1Store]: treesize reduction 88, result has 40.5 percent of original size [2022-10-16 14:24:08,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 81 [2022-10-16 14:24:08,262 INFO L356 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-10-16 14:24:08,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 50 [2022-10-16 14:24:12,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:13,431 INFO L356 Elim1Store]: treesize reduction 476, result has 45.7 percent of original size [2022-10-16 14:24:13,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 15 new quantified variables, introduced 74 case distinctions, treesize of input 913 treesize of output 942 [2022-10-16 14:24:13,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:24:14,709 INFO L356 Elim1Store]: treesize reduction 456, result has 50.1 percent of original size [2022-10-16 14:24:14,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 61 case distinctions, treesize of input 692 treesize of output 1045 [2022-10-16 14:24:14,993 INFO L356 Elim1Store]: treesize reduction 96, result has 47.0 percent of original size [2022-10-16 14:24:14,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 592 treesize of output 611