./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/byte_add-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/byte_add-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57155ec4d1c294d255486bcf60492b490ef9efa5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:36:21,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:36:21,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:36:21,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:36:21,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:36:21,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:36:21,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:36:21,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:36:21,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:36:21,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:36:21,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:36:21,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:36:21,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:36:21,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:36:21,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:36:21,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:36:21,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:36:21,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:36:21,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:36:21,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:36:21,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:36:21,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:36:21,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:36:21,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:36:21,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:36:21,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:36:21,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:36:21,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:36:21,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:36:21,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:36:21,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:36:21,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:36:21,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:36:21,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:36:21,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:36:21,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:36:21,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:36:21,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:36:21,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:36:21,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:36:21,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:36:21,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-19 18:36:21,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:36:21,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:36:21,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:36:21,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:36:21,286 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:36:21,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:36:21,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:36:21,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:36:21,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:36:21,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:36:21,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:36:21,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:36:21,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:36:21,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:36:21,291 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:36:21,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:36:21,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:36:21,292 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:36:21,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:36:21,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:36:21,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:36:21,293 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:36:21,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:36:21,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:36:21,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:36:21,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:36:21,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:36:21,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:36:21,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:36:21,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:36:21,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:36:21,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57155ec4d1c294d255486bcf60492b490ef9efa5 [2020-10-19 18:36:21,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:36:21,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:36:21,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:36:21,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:36:21,647 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:36:21,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/byte_add-2.i [2020-10-19 18:36:21,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1848d9a1c/aa6a01c589574822b373236ca9ba39e4/FLAG3d5ba0194 [2020-10-19 18:36:22,182 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:36:22,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/byte_add-2.i [2020-10-19 18:36:22,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1848d9a1c/aa6a01c589574822b373236ca9ba39e4/FLAG3d5ba0194 [2020-10-19 18:36:22,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1848d9a1c/aa6a01c589574822b373236ca9ba39e4 [2020-10-19 18:36:22,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:36:22,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:36:22,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:36:22,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:36:22,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:36:22,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:22,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fb8ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22, skipping insertion in model container [2020-10-19 18:36:22,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:22,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:36:22,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:36:22,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:36:22,850 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:36:22,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:36:22,965 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:36:22,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22 WrapperNode [2020-10-19 18:36:22,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:36:22,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:36:22,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:36:22,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:36:22,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:22,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:36:23,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:36:23,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:36:23,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:36:23,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... [2020-10-19 18:36:23,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:36:23,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:36:23,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:36:23,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:36:23,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:36:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:36:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:36:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:36:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:36:23,601 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:36:23,602 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-19 18:36:23,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:36:23 BoogieIcfgContainer [2020-10-19 18:36:23,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:36:23,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:36:23,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:36:23,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:36:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:36:22" (1/3) ... [2020-10-19 18:36:23,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:36:23, skipping insertion in model container [2020-10-19 18:36:23,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:22" (2/3) ... [2020-10-19 18:36:23,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:36:23, skipping insertion in model container [2020-10-19 18:36:23,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:36:23" (3/3) ... [2020-10-19 18:36:23,614 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2020-10-19 18:36:23,627 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:36:23,635 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2020-10-19 18:36:23,651 INFO L253 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2020-10-19 18:36:23,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:36:23,681 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:36:23,681 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:36:23,681 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:36:23,682 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:36:23,683 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:36:23,683 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:36:23,683 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:36:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-19 18:36:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:36:23,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:23,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:36:23,717 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-19 18:36:23,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:23,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370138022] [2020-10-19 18:36:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:36:23,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370138022] [2020-10-19 18:36:23,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:23,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:36:23,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82494875] [2020-10-19 18:36:23,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-19 18:36:23,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:23,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:36:23,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:36:23,919 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-10-19 18:36:23,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:23,951 INFO L93 Difference]: Finished difference Result 138 states and 182 transitions. [2020-10-19 18:36:23,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:36:23,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-19 18:36:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:23,965 INFO L225 Difference]: With dead ends: 138 [2020-10-19 18:36:23,966 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 18:36:23,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:36:23,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 18:36:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-19 18:36:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-19 18:36:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-19 18:36:24,014 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 4 [2020-10-19 18:36:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:24,015 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-19 18:36:24,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-19 18:36:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-19 18:36:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:36:24,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:24,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:24,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:36:24,018 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:24,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1944470950, now seen corresponding path program 1 times [2020-10-19 18:36:24,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:24,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404830039] [2020-10-19 18:36:24,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:36:24,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404830039] [2020-10-19 18:36:24,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:24,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:36:24,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865936189] [2020-10-19 18:36:24,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:36:24,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:24,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:36:24,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:36:24,136 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand 3 states. [2020-10-19 18:36:24,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:24,314 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2020-10-19 18:36:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:36:24,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-19 18:36:24,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:24,317 INFO L225 Difference]: With dead ends: 145 [2020-10-19 18:36:24,317 INFO L226 Difference]: Without dead ends: 98 [2020-10-19 18:36:24,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:36:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-19 18:36:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-19 18:36:24,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-19 18:36:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2020-10-19 18:36:24,330 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2020-10-19 18:36:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:24,331 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2020-10-19 18:36:24,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:36:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-10-19 18:36:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:36:24,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:24,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:24,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:36:24,334 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:24,334 INFO L82 PathProgramCache]: Analyzing trace with hash 565405448, now seen corresponding path program 1 times [2020-10-19 18:36:24,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:24,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089680725] [2020-10-19 18:36:24,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:36:24,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089680725] [2020-10-19 18:36:24,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:24,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:36:24,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677137136] [2020-10-19 18:36:24,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:24,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:24,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:24,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:36:24,476 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand 4 states. [2020-10-19 18:36:24,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:24,727 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2020-10-19 18:36:24,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:24,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-19 18:36:24,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:24,730 INFO L225 Difference]: With dead ends: 221 [2020-10-19 18:36:24,731 INFO L226 Difference]: Without dead ends: 164 [2020-10-19 18:36:24,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:36:24,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-19 18:36:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 104. [2020-10-19 18:36:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-19 18:36:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2020-10-19 18:36:24,745 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 20 [2020-10-19 18:36:24,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:24,745 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2020-10-19 18:36:24,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2020-10-19 18:36:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:36:24,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:24,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:24,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:36:24,749 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:24,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:24,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1055427225, now seen corresponding path program 1 times [2020-10-19 18:36:24,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:24,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765916847] [2020-10-19 18:36:24,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:36:24,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765916847] [2020-10-19 18:36:24,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:24,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:36:24,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147276238] [2020-10-19 18:36:24,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:24,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:24,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:24,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:36:24,849 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand 4 states. [2020-10-19 18:36:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:25,063 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2020-10-19 18:36:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:25,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-19 18:36:25,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:25,066 INFO L225 Difference]: With dead ends: 259 [2020-10-19 18:36:25,066 INFO L226 Difference]: Without dead ends: 194 [2020-10-19 18:36:25,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:36:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-19 18:36:25,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 120. [2020-10-19 18:36:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-19 18:36:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2020-10-19 18:36:25,080 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 23 [2020-10-19 18:36:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:25,081 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2020-10-19 18:36:25,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2020-10-19 18:36:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:36:25,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:25,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:25,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:36:25,084 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:25,085 INFO L82 PathProgramCache]: Analyzing trace with hash -2113419709, now seen corresponding path program 1 times [2020-10-19 18:36:25,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:25,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794715448] [2020-10-19 18:36:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:36:25,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794715448] [2020-10-19 18:36:25,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032013797] [2020-10-19 18:36:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:25,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:36:25,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:36:25,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:36:25,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-10-19 18:36:25,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386361972] [2020-10-19 18:36:25,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:25,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:25,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:25,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:25,522 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand 4 states. [2020-10-19 18:36:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:25,781 INFO L93 Difference]: Finished difference Result 216 states and 307 transitions. [2020-10-19 18:36:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:25,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-19 18:36:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:25,783 INFO L225 Difference]: With dead ends: 216 [2020-10-19 18:36:25,783 INFO L226 Difference]: Without dead ends: 169 [2020-10-19 18:36:25,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-19 18:36:25,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2020-10-19 18:36:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-19 18:36:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 183 transitions. [2020-10-19 18:36:25,798 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 183 transitions. Word has length 26 [2020-10-19 18:36:25,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:25,799 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 183 transitions. [2020-10-19 18:36:25,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 183 transitions. [2020-10-19 18:36:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-19 18:36:25,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:25,804 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-19 18:36:26,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:26,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:26,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:26,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1301565703, now seen corresponding path program 1 times [2020-10-19 18:36:26,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:26,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246632278] [2020-10-19 18:36:26,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:36:26,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246632278] [2020-10-19 18:36:26,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674592514] [2020-10-19 18:36:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:26,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:36:26,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 18:36:26,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:36:26,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2020-10-19 18:36:26,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340919795] [2020-10-19 18:36:26,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:26,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:26,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:26,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:26,280 INFO L87 Difference]: Start difference. First operand 145 states and 183 transitions. Second operand 4 states. [2020-10-19 18:36:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:26,597 INFO L93 Difference]: Finished difference Result 290 states and 391 transitions. [2020-10-19 18:36:26,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:26,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-19 18:36:26,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:26,599 INFO L225 Difference]: With dead ends: 290 [2020-10-19 18:36:26,600 INFO L226 Difference]: Without dead ends: 198 [2020-10-19 18:36:26,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-19 18:36:26,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 170. [2020-10-19 18:36:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-19 18:36:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2020-10-19 18:36:26,611 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 33 [2020-10-19 18:36:26,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:26,611 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2020-10-19 18:36:26,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:26,612 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2020-10-19 18:36:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-19 18:36:26,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:26,614 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-19 18:36:26,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:26,829 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:26,829 INFO L82 PathProgramCache]: Analyzing trace with hash -665492217, now seen corresponding path program 1 times [2020-10-19 18:36:26,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:26,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336129560] [2020-10-19 18:36:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:36:26,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336129560] [2020-10-19 18:36:26,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135033567] [2020-10-19 18:36:26,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:27,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:36:27,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:27,119 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-19 18:36:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 18:36:27,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:36:27,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2020-10-19 18:36:27,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208754066] [2020-10-19 18:36:27,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:27,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:27,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:27,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:27,267 INFO L87 Difference]: Start difference. First operand 170 states and 212 transitions. Second operand 4 states. [2020-10-19 18:36:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:27,625 INFO L93 Difference]: Finished difference Result 340 states and 447 transitions. [2020-10-19 18:36:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:27,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-19 18:36:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:27,627 INFO L225 Difference]: With dead ends: 340 [2020-10-19 18:36:27,627 INFO L226 Difference]: Without dead ends: 223 [2020-10-19 18:36:27,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-19 18:36:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 195. [2020-10-19 18:36:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-19 18:36:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2020-10-19 18:36:27,636 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 40 [2020-10-19 18:36:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:27,637 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2020-10-19 18:36:27,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:27,637 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2020-10-19 18:36:27,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-19 18:36:27,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:27,639 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:27,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:27,853 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:27,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:27,854 INFO L82 PathProgramCache]: Analyzing trace with hash 973067587, now seen corresponding path program 1 times [2020-10-19 18:36:27,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:27,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403773908] [2020-10-19 18:36:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-19 18:36:27,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403773908] [2020-10-19 18:36:27,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:27,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:36:27,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89971338] [2020-10-19 18:36:27,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:36:27,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:27,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:36:27,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:36:27,901 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand 3 states. [2020-10-19 18:36:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:27,910 INFO L93 Difference]: Finished difference Result 232 states and 282 transitions. [2020-10-19 18:36:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:36:27,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-19 18:36:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:27,912 INFO L225 Difference]: With dead ends: 232 [2020-10-19 18:36:27,912 INFO L226 Difference]: Without dead ends: 169 [2020-10-19 18:36:27,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:36:27,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-19 18:36:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-10-19 18:36:27,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-19 18:36:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2020-10-19 18:36:27,919 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 47 [2020-10-19 18:36:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:27,919 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2020-10-19 18:36:27,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:36:27,920 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2020-10-19 18:36:27,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-19 18:36:27,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:27,922 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:27,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:36:27,922 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:27,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:27,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1501188431, now seen corresponding path program 1 times [2020-10-19 18:36:27,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:27,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424301021] [2020-10-19 18:36:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:28,021 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-19 18:36:28,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424301021] [2020-10-19 18:36:28,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:28,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:36:28,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370790081] [2020-10-19 18:36:28,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:36:28,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:28,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:36:28,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:36:28,024 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand 5 states. [2020-10-19 18:36:28,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:28,255 INFO L93 Difference]: Finished difference Result 465 states and 573 transitions. [2020-10-19 18:36:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:36:28,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-19 18:36:28,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:28,258 INFO L225 Difference]: With dead ends: 465 [2020-10-19 18:36:28,258 INFO L226 Difference]: Without dead ends: 347 [2020-10-19 18:36:28,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-19 18:36:28,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 209. [2020-10-19 18:36:28,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-19 18:36:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 256 transitions. [2020-10-19 18:36:28,268 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 256 transitions. Word has length 59 [2020-10-19 18:36:28,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:28,268 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 256 transitions. [2020-10-19 18:36:28,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:36:28,269 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 256 transitions. [2020-10-19 18:36:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-19 18:36:28,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:28,270 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:28,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:36:28,271 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:28,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:28,271 INFO L82 PathProgramCache]: Analyzing trace with hash -451056364, now seen corresponding path program 1 times [2020-10-19 18:36:28,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:28,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088816234] [2020-10-19 18:36:28,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-19 18:36:28,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088816234] [2020-10-19 18:36:28,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:28,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:36:28,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788150830] [2020-10-19 18:36:28,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:28,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:28,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:28,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:36:28,330 INFO L87 Difference]: Start difference. First operand 209 states and 256 transitions. Second operand 4 states. [2020-10-19 18:36:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:28,400 INFO L93 Difference]: Finished difference Result 465 states and 569 transitions. [2020-10-19 18:36:28,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:28,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-10-19 18:36:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:28,402 INFO L225 Difference]: With dead ends: 465 [2020-10-19 18:36:28,403 INFO L226 Difference]: Without dead ends: 307 [2020-10-19 18:36:28,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:36:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-19 18:36:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 225. [2020-10-19 18:36:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-19 18:36:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 283 transitions. [2020-10-19 18:36:28,412 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 283 transitions. Word has length 62 [2020-10-19 18:36:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:28,412 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 283 transitions. [2020-10-19 18:36:28,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 283 transitions. [2020-10-19 18:36:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 18:36:28,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:28,413 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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, 1] [2020-10-19 18:36:28,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 18:36:28,414 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:28,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:28,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1517528546, now seen corresponding path program 1 times [2020-10-19 18:36:28,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:28,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462554829] [2020-10-19 18:36:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 18:36:28,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462554829] [2020-10-19 18:36:28,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:28,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:36:28,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889742253] [2020-10-19 18:36:28,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:36:28,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:28,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:36:28,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:28,504 INFO L87 Difference]: Start difference. First operand 225 states and 283 transitions. Second operand 6 states. [2020-10-19 18:36:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:28,845 INFO L93 Difference]: Finished difference Result 619 states and 780 transitions. [2020-10-19 18:36:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:36:28,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-19 18:36:28,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:28,849 INFO L225 Difference]: With dead ends: 619 [2020-10-19 18:36:28,849 INFO L226 Difference]: Without dead ends: 440 [2020-10-19 18:36:28,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:36:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-19 18:36:28,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 361. [2020-10-19 18:36:28,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-19 18:36:28,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 453 transitions. [2020-10-19 18:36:28,866 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 453 transitions. Word has length 68 [2020-10-19 18:36:28,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:28,866 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 453 transitions. [2020-10-19 18:36:28,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:36:28,866 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 453 transitions. [2020-10-19 18:36:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 18:36:28,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:28,868 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:28,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 18:36:28,869 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:28,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:28,869 INFO L82 PathProgramCache]: Analyzing trace with hash 2020673026, now seen corresponding path program 1 times [2020-10-19 18:36:28,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:28,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094384450] [2020-10-19 18:36:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-19 18:36:28,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094384450] [2020-10-19 18:36:28,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354315582] [2020-10-19 18:36:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:28,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:36:28,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-19 18:36:29,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:36:29,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2020-10-19 18:36:29,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878348401] [2020-10-19 18:36:29,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:36:29,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:29,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:36:29,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:36:29,015 INFO L87 Difference]: Start difference. First operand 361 states and 453 transitions. Second operand 4 states. [2020-10-19 18:36:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:29,161 INFO L93 Difference]: Finished difference Result 960 states and 1198 transitions. [2020-10-19 18:36:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:36:29,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-19 18:36:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:29,165 INFO L225 Difference]: With dead ends: 960 [2020-10-19 18:36:29,165 INFO L226 Difference]: Without dead ends: 616 [2020-10-19 18:36:29,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:36:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-10-19 18:36:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 496. [2020-10-19 18:36:29,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-19 18:36:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 623 transitions. [2020-10-19 18:36:29,185 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 623 transitions. Word has length 68 [2020-10-19 18:36:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:29,185 INFO L481 AbstractCegarLoop]: Abstraction has 496 states and 623 transitions. [2020-10-19 18:36:29,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:36:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 623 transitions. [2020-10-19 18:36:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 18:36:29,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:29,188 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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, 1] [2020-10-19 18:36:29,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:29,402 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:29,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:29,402 INFO L82 PathProgramCache]: Analyzing trace with hash 579694859, now seen corresponding path program 1 times [2020-10-19 18:36:29,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:29,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025846958] [2020-10-19 18:36:29,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 18:36:29,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025846958] [2020-10-19 18:36:29,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:29,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:36:29,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398969892] [2020-10-19 18:36:29,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:36:29,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:29,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:36:29,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:29,493 INFO L87 Difference]: Start difference. First operand 496 states and 623 transitions. Second operand 6 states. [2020-10-19 18:36:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:29,867 INFO L93 Difference]: Finished difference Result 1194 states and 1490 transitions. [2020-10-19 18:36:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:36:29,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-19 18:36:29,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:29,871 INFO L225 Difference]: With dead ends: 1194 [2020-10-19 18:36:29,872 INFO L226 Difference]: Without dead ends: 717 [2020-10-19 18:36:29,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:36:29,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-19 18:36:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 603. [2020-10-19 18:36:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-19 18:36:29,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 756 transitions. [2020-10-19 18:36:29,892 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 756 transitions. Word has length 68 [2020-10-19 18:36:29,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:29,892 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 756 transitions. [2020-10-19 18:36:29,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:36:29,893 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 756 transitions. [2020-10-19 18:36:29,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-19 18:36:29,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:29,895 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-10-19 18:36:29,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 18:36:29,896 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:29,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:29,896 INFO L82 PathProgramCache]: Analyzing trace with hash 415029660, now seen corresponding path program 1 times [2020-10-19 18:36:29,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:29,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664144814] [2020-10-19 18:36:29,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-19 18:36:30,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664144814] [2020-10-19 18:36:30,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:30,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:36:30,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111162016] [2020-10-19 18:36:30,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:36:30,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:30,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:36:30,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:30,003 INFO L87 Difference]: Start difference. First operand 603 states and 756 transitions. Second operand 7 states. [2020-10-19 18:36:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:30,450 INFO L93 Difference]: Finished difference Result 1482 states and 1841 transitions. [2020-10-19 18:36:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:36:30,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-19 18:36:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:30,455 INFO L225 Difference]: With dead ends: 1482 [2020-10-19 18:36:30,455 INFO L226 Difference]: Without dead ends: 825 [2020-10-19 18:36:30,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:36:30,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-19 18:36:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 717. [2020-10-19 18:36:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-10-19 18:36:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 900 transitions. [2020-10-19 18:36:30,480 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 900 transitions. Word has length 74 [2020-10-19 18:36:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:30,481 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 900 transitions. [2020-10-19 18:36:30,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:36:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 900 transitions. [2020-10-19 18:36:30,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-19 18:36:30,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:30,483 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-19 18:36:30,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 18:36:30,484 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:30,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:30,484 INFO L82 PathProgramCache]: Analyzing trace with hash -78732058, now seen corresponding path program 1 times [2020-10-19 18:36:30,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:30,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594619617] [2020-10-19 18:36:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 18:36:30,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594619617] [2020-10-19 18:36:30,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790441089] [2020-10-19 18:36:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:30,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:36:30,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:30,625 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 18:36:30,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:36:30,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 18:36:30,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133549581] [2020-10-19 18:36:30,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:36:30,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:30,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:36:30,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:36:30,627 INFO L87 Difference]: Start difference. First operand 717 states and 900 transitions. Second operand 5 states. [2020-10-19 18:36:30,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:30,791 INFO L93 Difference]: Finished difference Result 2016 states and 2436 transitions. [2020-10-19 18:36:30,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:36:30,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-10-19 18:36:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:30,801 INFO L225 Difference]: With dead ends: 2016 [2020-10-19 18:36:30,801 INFO L226 Difference]: Without dead ends: 1991 [2020-10-19 18:36:30,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:30,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-19 18:36:30,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 993. [2020-10-19 18:36:30,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-10-19 18:36:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1352 transitions. [2020-10-19 18:36:30,840 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1352 transitions. Word has length 74 [2020-10-19 18:36:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:30,841 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1352 transitions. [2020-10-19 18:36:30,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:36:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1352 transitions. [2020-10-19 18:36:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-19 18:36:30,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:30,843 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-10-19 18:36:31,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-19 18:36:31,052 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:31,053 INFO L82 PathProgramCache]: Analyzing trace with hash -2110504499, now seen corresponding path program 1 times [2020-10-19 18:36:31,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:31,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388285091] [2020-10-19 18:36:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-19 18:36:31,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388285091] [2020-10-19 18:36:31,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:31,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:36:31,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141154334] [2020-10-19 18:36:31,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:36:31,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:31,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:36:31,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:31,154 INFO L87 Difference]: Start difference. First operand 993 states and 1352 transitions. Second operand 7 states. [2020-10-19 18:36:31,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:31,665 INFO L93 Difference]: Finished difference Result 2272 states and 3078 transitions. [2020-10-19 18:36:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:36:31,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-19 18:36:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:31,672 INFO L225 Difference]: With dead ends: 2272 [2020-10-19 18:36:31,672 INFO L226 Difference]: Without dead ends: 1264 [2020-10-19 18:36:31,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:36:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-19 18:36:31,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1141. [2020-10-19 18:36:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-19 18:36:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-19 18:36:31,714 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 74 [2020-10-19 18:36:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:31,714 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-19 18:36:31,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:36:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-19 18:36:31,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-19 18:36:31,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:31,717 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:31,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 18:36:31,717 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:31,718 INFO L82 PathProgramCache]: Analyzing trace with hash 220871532, now seen corresponding path program 1 times [2020-10-19 18:36:31,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:31,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167918932] [2020-10-19 18:36:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-19 18:36:31,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167918932] [2020-10-19 18:36:31,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:31,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:36:31,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024937910] [2020-10-19 18:36:31,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:36:31,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:31,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:36:31,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:36:31,813 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-10-19 18:36:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:32,207 INFO L93 Difference]: Finished difference Result 3568 states and 4858 transitions. [2020-10-19 18:36:32,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:36:32,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-19 18:36:32,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:32,224 INFO L225 Difference]: With dead ends: 3568 [2020-10-19 18:36:32,225 INFO L226 Difference]: Without dead ends: 3401 [2020-10-19 18:36:32,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-10-19 18:36:32,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 1141. [2020-10-19 18:36:32,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-19 18:36:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-19 18:36:32,287 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-10-19 18:36:32,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:32,287 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-19 18:36:32,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:36:32,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-19 18:36:32,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-19 18:36:32,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:32,290 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:32,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 18:36:32,291 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:32,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:32,292 INFO L82 PathProgramCache]: Analyzing trace with hash 25170625, now seen corresponding path program 1 times [2020-10-19 18:36:32,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:32,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395058676] [2020-10-19 18:36:32,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-19 18:36:32,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395058676] [2020-10-19 18:36:32,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:32,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:36:32,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356267542] [2020-10-19 18:36:32,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:36:32,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:32,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:36:32,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:36:32,417 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-10-19 18:36:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:32,848 INFO L93 Difference]: Finished difference Result 3558 states and 4844 transitions. [2020-10-19 18:36:32,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:36:32,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-19 18:36:32,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:32,862 INFO L225 Difference]: With dead ends: 3558 [2020-10-19 18:36:32,862 INFO L226 Difference]: Without dead ends: 3384 [2020-10-19 18:36:32,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:32,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-10-19 18:36:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 1141. [2020-10-19 18:36:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-19 18:36:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-19 18:36:32,924 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-10-19 18:36:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:32,924 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-19 18:36:32,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:36:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-19 18:36:32,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-19 18:36:32,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:32,926 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:32,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 18:36:32,927 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:32,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1618881827, now seen corresponding path program 1 times [2020-10-19 18:36:32,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:32,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056953470] [2020-10-19 18:36:32,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-19 18:36:33,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056953470] [2020-10-19 18:36:33,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:33,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:36:33,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936791763] [2020-10-19 18:36:33,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:36:33,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:33,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:36:33,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:33,071 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-10-19 18:36:33,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:33,667 INFO L93 Difference]: Finished difference Result 4706 states and 6408 transitions. [2020-10-19 18:36:33,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:36:33,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-19 18:36:33,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:33,687 INFO L225 Difference]: With dead ends: 4706 [2020-10-19 18:36:33,687 INFO L226 Difference]: Without dead ends: 4539 [2020-10-19 18:36:33,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:36:33,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2020-10-19 18:36:33,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 1141. [2020-10-19 18:36:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-19 18:36:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-19 18:36:33,753 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-10-19 18:36:33,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:33,754 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-19 18:36:33,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:36:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-19 18:36:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-19 18:36:33,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:33,756 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:33,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 18:36:33,757 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:33,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:33,757 INFO L82 PathProgramCache]: Analyzing trace with hash -705708941, now seen corresponding path program 1 times [2020-10-19 18:36:33,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:33,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127071968] [2020-10-19 18:36:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-19 18:36:33,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127071968] [2020-10-19 18:36:33,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:33,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:36:33,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454067930] [2020-10-19 18:36:33,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:36:33,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:33,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:36:33,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:36:33,875 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-10-19 18:36:34,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:34,474 INFO L93 Difference]: Finished difference Result 4686 states and 6381 transitions. [2020-10-19 18:36:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:36:34,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-19 18:36:34,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:34,493 INFO L225 Difference]: With dead ends: 4686 [2020-10-19 18:36:34,493 INFO L226 Difference]: Without dead ends: 4512 [2020-10-19 18:36:34,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:36:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2020-10-19 18:36:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 1141. [2020-10-19 18:36:34,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-19 18:36:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-19 18:36:34,563 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-10-19 18:36:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:34,563 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-19 18:36:34,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:36:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-19 18:36:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-19 18:36:34,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:34,566 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:34,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 18:36:34,567 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:34,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1508814206, now seen corresponding path program 1 times [2020-10-19 18:36:34,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:34,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169565907] [2020-10-19 18:36:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-19 18:36:34,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169565907] [2020-10-19 18:36:34,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297456030] [2020-10-19 18:36:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:34,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:36:34,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-19 18:36:34,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:36:34,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 18:36:34,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835934709] [2020-10-19 18:36:34,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:36:34,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:34,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:36:34,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:36:34,830 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 8 states. [2020-10-19 18:36:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:35,166 INFO L93 Difference]: Finished difference Result 3168 states and 4362 transitions. [2020-10-19 18:36:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:36:35,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-19 18:36:35,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:35,174 INFO L225 Difference]: With dead ends: 3168 [2020-10-19 18:36:35,174 INFO L226 Difference]: Without dead ends: 2018 [2020-10-19 18:36:35,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:36:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2020-10-19 18:36:35,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1911. [2020-10-19 18:36:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-10-19 18:36:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2607 transitions. [2020-10-19 18:36:35,235 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2607 transitions. Word has length 83 [2020-10-19 18:36:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:35,235 INFO L481 AbstractCegarLoop]: Abstraction has 1911 states and 2607 transitions. [2020-10-19 18:36:35,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:36:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2607 transitions. [2020-10-19 18:36:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 18:36:35,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:35,238 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:35,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:35,452 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:35,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1670983295, now seen corresponding path program 1 times [2020-10-19 18:36:35,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:35,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777567634] [2020-10-19 18:36:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:35,602 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-19 18:36:35,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777567634] [2020-10-19 18:36:35,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:35,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:36:35,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468646371] [2020-10-19 18:36:35,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:36:35,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:35,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:36:35,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:35,606 INFO L87 Difference]: Start difference. First operand 1911 states and 2607 transitions. Second operand 7 states. [2020-10-19 18:36:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:36,657 INFO L93 Difference]: Finished difference Result 4413 states and 5986 transitions. [2020-10-19 18:36:36,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:36:36,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-19 18:36:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:36,691 INFO L225 Difference]: With dead ends: 4413 [2020-10-19 18:36:36,695 INFO L226 Difference]: Without dead ends: 4246 [2020-10-19 18:36:36,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:36:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2020-10-19 18:36:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 1893. [2020-10-19 18:36:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2020-10-19 18:36:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2584 transitions. [2020-10-19 18:36:36,774 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2584 transitions. Word has length 85 [2020-10-19 18:36:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:36,775 INFO L481 AbstractCegarLoop]: Abstraction has 1893 states and 2584 transitions. [2020-10-19 18:36:36,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:36:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2584 transitions. [2020-10-19 18:36:36,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 18:36:36,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:36,778 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:36,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 18:36:36,779 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:36,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:36,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1447135889, now seen corresponding path program 1 times [2020-10-19 18:36:36,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:36,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85723889] [2020-10-19 18:36:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-19 18:36:36,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85723889] [2020-10-19 18:36:36,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:36:36,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:36:36,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019492133] [2020-10-19 18:36:36,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:36:36,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:36,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:36:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:36:36,929 INFO L87 Difference]: Start difference. First operand 1893 states and 2584 transitions. Second operand 7 states. [2020-10-19 18:36:37,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:37,773 INFO L93 Difference]: Finished difference Result 6724 states and 9154 transitions. [2020-10-19 18:36:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:36:37,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-19 18:36:37,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:37,787 INFO L225 Difference]: With dead ends: 6724 [2020-10-19 18:36:37,788 INFO L226 Difference]: Without dead ends: 6400 [2020-10-19 18:36:37,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:36:37,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2020-10-19 18:36:37,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 1885. [2020-10-19 18:36:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-10-19 18:36:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2576 transitions. [2020-10-19 18:36:37,869 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2576 transitions. Word has length 85 [2020-10-19 18:36:37,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:37,869 INFO L481 AbstractCegarLoop]: Abstraction has 1885 states and 2576 transitions. [2020-10-19 18:36:37,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:36:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2576 transitions. [2020-10-19 18:36:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-19 18:36:37,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:37,873 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:37,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-19 18:36:37,874 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:37,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:37,874 INFO L82 PathProgramCache]: Analyzing trace with hash -566259362, now seen corresponding path program 1 times [2020-10-19 18:36:37,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:37,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669777744] [2020-10-19 18:36:37,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-19 18:36:37,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669777744] [2020-10-19 18:36:37,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222116410] [2020-10-19 18:36:37,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:38,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:36:38,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-19 18:36:38,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:36:38,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2020-10-19 18:36:38,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758824626] [2020-10-19 18:36:38,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:36:38,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:38,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:36:38,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:36:38,401 INFO L87 Difference]: Start difference. First operand 1885 states and 2576 transitions. Second operand 10 states. [2020-10-19 18:36:40,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:40,720 INFO L93 Difference]: Finished difference Result 5246 states and 7382 transitions. [2020-10-19 18:36:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:36:40,721 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-19 18:36:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:40,727 INFO L225 Difference]: With dead ends: 5246 [2020-10-19 18:36:40,728 INFO L226 Difference]: Without dead ends: 3390 [2020-10-19 18:36:40,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:36:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2020-10-19 18:36:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2569. [2020-10-19 18:36:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2569 states. [2020-10-19 18:36:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3488 transitions. [2020-10-19 18:36:40,815 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3488 transitions. Word has length 86 [2020-10-19 18:36:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:40,816 INFO L481 AbstractCegarLoop]: Abstraction has 2569 states and 3488 transitions. [2020-10-19 18:36:40,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:36:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3488 transitions. [2020-10-19 18:36:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-19 18:36:40,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:40,819 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:41,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:41,033 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:41,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1279960591, now seen corresponding path program 1 times [2020-10-19 18:36:41,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:41,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839585250] [2020-10-19 18:36:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 18:36:41,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839585250] [2020-10-19 18:36:41,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705633385] [2020-10-19 18:36:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:41,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:36:41,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-19 18:36:41,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:36:41,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2020-10-19 18:36:41,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348369520] [2020-10-19 18:36:41,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:36:41,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:41,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:36:41,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:36:41,309 INFO L87 Difference]: Start difference. First operand 2569 states and 3488 transitions. Second operand 6 states. [2020-10-19 18:36:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:41,664 INFO L93 Difference]: Finished difference Result 3367 states and 4548 transitions. [2020-10-19 18:36:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:36:41,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-10-19 18:36:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:41,670 INFO L225 Difference]: With dead ends: 3367 [2020-10-19 18:36:41,671 INFO L226 Difference]: Without dead ends: 3167 [2020-10-19 18:36:41,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:36:41,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-10-19 18:36:41,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3140. [2020-10-19 18:36:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2020-10-19 18:36:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4241 transitions. [2020-10-19 18:36:41,758 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4241 transitions. Word has length 86 [2020-10-19 18:36:41,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:41,759 INFO L481 AbstractCegarLoop]: Abstraction has 3140 states and 4241 transitions. [2020-10-19 18:36:41,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:36:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4241 transitions. [2020-10-19 18:36:41,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-19 18:36:41,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:41,763 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:41,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-19 18:36:41,978 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:41,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:41,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1246814763, now seen corresponding path program 1 times [2020-10-19 18:36:41,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:41,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170881594] [2020-10-19 18:36:41,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-19 18:36:42,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170881594] [2020-10-19 18:36:42,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830948381] [2020-10-19 18:36:42,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:42,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:36:42,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-19 18:36:45,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:36:45,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2020-10-19 18:36:45,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503802547] [2020-10-19 18:36:45,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:36:45,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:45,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:36:45,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=98, Unknown=1, NotChecked=0, Total=132 [2020-10-19 18:36:45,608 INFO L87 Difference]: Start difference. First operand 3140 states and 4241 transitions. Second operand 12 states. [2020-10-19 18:36:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:48,699 INFO L93 Difference]: Finished difference Result 6038 states and 8105 transitions. [2020-10-19 18:36:48,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-19 18:36:48,700 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-19 18:36:48,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:48,715 INFO L225 Difference]: With dead ends: 6038 [2020-10-19 18:36:48,715 INFO L226 Difference]: Without dead ends: 5497 [2020-10-19 18:36:48,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=84, Invalid=295, Unknown=1, NotChecked=0, Total=380 [2020-10-19 18:36:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-10-19 18:36:48,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 4100. [2020-10-19 18:36:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-10-19 18:36:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 5518 transitions. [2020-10-19 18:36:48,941 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 5518 transitions. Word has length 89 [2020-10-19 18:36:48,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:48,941 INFO L481 AbstractCegarLoop]: Abstraction has 4100 states and 5518 transitions. [2020-10-19 18:36:48,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:36:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 5518 transitions. [2020-10-19 18:36:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-19 18:36:48,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:48,948 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:49,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-10-19 18:36:49,161 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:49,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:49,162 INFO L82 PathProgramCache]: Analyzing trace with hash 435136947, now seen corresponding path program 1 times [2020-10-19 18:36:49,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:49,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682804919] [2020-10-19 18:36:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 18:36:49,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682804919] [2020-10-19 18:36:49,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598763603] [2020-10-19 18:36:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:49,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:36:49,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 18:36:49,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:36:49,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2020-10-19 18:36:49,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877358673] [2020-10-19 18:36:49,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:36:49,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:49,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:36:49,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:36:49,532 INFO L87 Difference]: Start difference. First operand 4100 states and 5518 transitions. Second operand 12 states. [2020-10-19 18:36:53,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:53,939 INFO L93 Difference]: Finished difference Result 17412 states and 21999 transitions. [2020-10-19 18:36:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-19 18:36:53,940 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-19 18:36:53,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:53,959 INFO L225 Difference]: With dead ends: 17412 [2020-10-19 18:36:53,959 INFO L226 Difference]: Without dead ends: 14178 [2020-10-19 18:36:53,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-10-19 18:36:53,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2020-10-19 18:36:54,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 5702. [2020-10-19 18:36:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5702 states. [2020-10-19 18:36:54,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 7690 transitions. [2020-10-19 18:36:54,217 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 7690 transitions. Word has length 89 [2020-10-19 18:36:54,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:54,217 INFO L481 AbstractCegarLoop]: Abstraction has 5702 states and 7690 transitions. [2020-10-19 18:36:54,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:36:54,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 7690 transitions. [2020-10-19 18:36:54,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-19 18:36:54,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:54,222 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:54,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-19 18:36:54,436 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:54,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1767062975, now seen corresponding path program 1 times [2020-10-19 18:36:54,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:54,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971520851] [2020-10-19 18:36:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:54,577 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 18:36:54,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971520851] [2020-10-19 18:36:54,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021349356] [2020-10-19 18:36:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:36:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:36:54,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:36:54,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:36:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-19 18:36:54,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:36:54,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2020-10-19 18:36:54,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017200856] [2020-10-19 18:36:54,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:36:54,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:36:54,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:36:54,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:36:54,737 INFO L87 Difference]: Start difference. First operand 5702 states and 7690 transitions. Second operand 7 states. [2020-10-19 18:36:55,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:36:55,014 INFO L93 Difference]: Finished difference Result 6725 states and 9036 transitions. [2020-10-19 18:36:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:36:55,015 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-19 18:36:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:36:55,023 INFO L225 Difference]: With dead ends: 6725 [2020-10-19 18:36:55,023 INFO L226 Difference]: Without dead ends: 6089 [2020-10-19 18:36:55,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:36:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2020-10-19 18:36:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5706. [2020-10-19 18:36:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5706 states. [2020-10-19 18:36:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 7694 transitions. [2020-10-19 18:36:55,227 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 7694 transitions. Word has length 89 [2020-10-19 18:36:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:36:55,228 INFO L481 AbstractCegarLoop]: Abstraction has 5706 states and 7694 transitions. [2020-10-19 18:36:55,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:36:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 7694 transitions. [2020-10-19 18:36:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-19 18:36:55,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:36:55,233 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:36:55,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-10-19 18:36:55,446 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:36:55,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:36:55,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1585272271, now seen corresponding path program 1 times [2020-10-19 18:36:55,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:36:55,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772862861] [2020-10-19 18:36:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:36:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:36:55,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:36:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:36:55,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:36:55,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:36:55,614 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:36:55,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-19 18:36:55,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:36:55 BoogieIcfgContainer [2020-10-19 18:36:55,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:36:55,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:36:55,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:36:55,718 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:36:55,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:36:23" (3/4) ... [2020-10-19 18:36:55,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:36:55,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:36:55,726 INFO L168 Benchmark]: Toolchain (without parser) took 33189.11 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 509.1 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -51.6 MB). Peak memory consumption was 457.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:55,726 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:55,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:55,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:55,728 INFO L168 Benchmark]: Boogie Preprocessor took 34.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:55,728 INFO L168 Benchmark]: RCFGBuilder took 550.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:55,729 INFO L168 Benchmark]: TraceAbstraction took 32112.07 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 362.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.1 MB). Peak memory consumption was 455.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:55,729 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:55,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 550.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32112.07 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 362.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.1 MB). Peak memory consumption was 455.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L116] unsigned int a, b, r; [L118] a = __VERIFIER_nondet_uint() [L119] b = __VERIFIER_nondet_uint() [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND TRUE a3 == (unsigned char)0 [L52] EXPR na - 1 [L52] na = na - 1 [L53] COND TRUE a2 == (unsigned char)0 [L54] EXPR na - 1 [L54] na = na - 1 [L55] COND TRUE a1 == (unsigned char)0 [L56] EXPR na - 1 [L56] na = na - 1 [L60] nb = (unsigned char)4 [L61] COND FALSE !(b3 == (unsigned char)0) [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] EXPR partial_sum + a0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] EXPR partial_sum + b0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND TRUE i == (unsigned char)1 [L83] EXPR partial_sum + b1 [L83] partial_sum = partial_sum + b1 [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND TRUE i == (unsigned char)1 [L92] r1 = (unsigned char)partial_sum [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND TRUE i == (unsigned char)2 [L84] EXPR partial_sum + b2 [L84] partial_sum = partial_sum + b2 [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND TRUE i == (unsigned char)2 [L93] r2 = (unsigned char)partial_sum [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND TRUE i == (unsigned char)3 [L85] EXPR partial_sum + b3 [L85] partial_sum = partial_sum + b3 [L87] COND FALSE !(partial_sum > ((unsigned char)254)) [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND TRUE i == (unsigned char)3 [L94] r3 = (unsigned char)partial_sum [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND FALSE !(i < (unsigned char)4) [L108] r1 << 8U [L108] r2 << 16U [L108] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 38 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.9s, OverallIterations: 29, TraceHistogramMax: 4, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3833 SDtfs, 6706 SDslu, 10501 SDs, 0 SdLazy, 8612 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1033 GetRequests, 784 SyntacticMatches, 33 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5706occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 28 MinimizatonAttempts, 31331 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2625 NumberOfCodeBlocks, 2625 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2495 ConstructedInterpolants, 36 QuantifiedInterpolants, 1048146 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1851 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 39 InterpolantComputations, 23 PerfectInterpolantSequences, 2276/2396 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...