/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:13:04,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:13:04,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:13:04,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:13:04,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:13:04,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:13:04,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:13:04,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:13:04,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:13:04,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:13:04,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:13:04,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:13:04,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:13:04,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:13:04,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:13:04,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:13:04,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:13:04,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:13:04,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:13:04,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:13:04,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:13:04,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:13:04,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:13:04,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:13:04,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:13:04,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:13:04,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:13:04,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:13:04,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:13:04,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:13:04,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:13:04,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:13:04,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:13:04,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:13:04,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:13:04,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:13:04,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:13:04,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:13:04,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:13:04,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:13:04,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:13:04,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:13:04,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:13:04,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:13:04,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:13:04,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:13:04,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:13:04,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:13:04,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:13:04,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:13:04,615 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:13:04,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:13:04,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:13:04,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:13:04,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:13:04,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:13:04,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:13:04,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:13:04,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:13:04,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:13:04,618 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:13:04,618 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:13:04,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:13:04,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:13:04,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:13:04,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:13:04,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:13:04,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:13:04,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:04,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:13:04,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:13:04,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:13:04,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:13:04,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:13:04,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:13:04,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:13:05,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:13:05,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:13:05,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:13:05,061 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:13:05,062 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:13:05,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2022-10-15 21:13:05,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fc394ca9/54aab84d20e7463dad7ddde8d1070565/FLAGb52663f52 [2022-10-15 21:13:06,227 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:13:06,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2022-10-15 21:13:06,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fc394ca9/54aab84d20e7463dad7ddde8d1070565/FLAGb52663f52 [2022-10-15 21:13:06,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fc394ca9/54aab84d20e7463dad7ddde8d1070565 [2022-10-15 21:13:06,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:13:06,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:13:06,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:06,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:13:06,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:13:06,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9017d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:06, skipping insertion in model container [2022-10-15 21:13:06,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:06" (1/1) ... [2022-10-15 21:13:06,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:13:06,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:13:07,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i[94831,94844] [2022-10-15 21:13:07,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:07,950 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:13:08,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i[94831,94844] [2022-10-15 21:13:08,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:08,146 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:13:08,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08 WrapperNode [2022-10-15 21:13:08,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:08,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:08,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:13:08,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:13:08,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,263 INFO L138 Inliner]: procedures = 69, calls = 242, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 574 [2022-10-15 21:13:08,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:08,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:13:08,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:13:08,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:13:08,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:08,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:08,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:08,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:08,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (1/1) ... [2022-10-15 21:13:08,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:08,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:08,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:13:08,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:13:08,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:13:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:13:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:08,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:08,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:08,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:08,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:08,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:08,550 INFO L130 BoogieDeclarations]: Found specification of procedure cypress_load_firmware [2022-10-15 21:13:08,550 INFO L138 BoogieDeclarations]: Found implementation of procedure cypress_load_firmware [2022-10-15 21:13:08,550 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_disconnect [2022-10-15 21:13:08,550 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_disconnect [2022-10-15 21:13:08,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:08,551 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-10-15 21:13:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-10-15 21:13:08,552 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-15 21:13:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-15 21:13:08,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-15 21:13:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-15 21:13:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:09,028 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:09,034 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:09,124 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-15 21:13:09,160 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:09,802 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:09,816 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:09,816 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:13:09,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:09 BoogieIcfgContainer [2022-10-15 21:13:09,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:09,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:09,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:09,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:09,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:13:06" (1/3) ... [2022-10-15 21:13:09,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caa4b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:09, skipping insertion in model container [2022-10-15 21:13:09,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:08" (2/3) ... [2022-10-15 21:13:09,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caa4b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:09, skipping insertion in model container [2022-10-15 21:13:09,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:09" (3/3) ... [2022-10-15 21:13:09,851 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2022-10-15 21:13:09,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:09,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-15 21:13:09,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:09,958 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7730e9ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:09,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-15 21:13:09,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 133 states have internal predecessors, (165), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-15 21:13:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 21:13:09,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:09,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:09,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:09,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:09,989 INFO L85 PathProgramCache]: Analyzing trace with hash 770285944, now seen corresponding path program 1 times [2022-10-15 21:13:10,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:10,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109808704] [2022-10-15 21:13:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:13:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:13:10,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:10,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109808704] [2022-10-15 21:13:10,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109808704] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:10,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:10,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:10,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188857526] [2022-10-15 21:13:10,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:10,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:10,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:10,760 INFO L87 Difference]: Start difference. First operand has 154 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 133 states have internal predecessors, (165), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:13:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:11,195 INFO L93 Difference]: Finished difference Result 352 states and 475 transitions. [2022-10-15 21:13:11,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:13:11,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-10-15 21:13:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:11,218 INFO L225 Difference]: With dead ends: 352 [2022-10-15 21:13:11,218 INFO L226 Difference]: Without dead ends: 156 [2022-10-15 21:13:11,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:11,231 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 112 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:11,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 598 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:13:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-15 21:13:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2022-10-15 21:13:11,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 119 states have (on average 1.3865546218487395) internal successors, (165), 128 states have internal predecessors, (165), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-15 21:13:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 191 transitions. [2022-10-15 21:13:11,341 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 191 transitions. Word has length 23 [2022-10-15 21:13:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:11,341 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 191 transitions. [2022-10-15 21:13:11,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:13:11,342 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 191 transitions. [2022-10-15 21:13:11,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 21:13:11,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:11,346 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-10-15 21:13:11,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:11,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:11,348 INFO L85 PathProgramCache]: Analyzing trace with hash -462635243, now seen corresponding path program 1 times [2022-10-15 21:13:11,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:11,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775732794] [2022-10-15 21:13:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:13:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:13:11,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:11,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775732794] [2022-10-15 21:13:11,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775732794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:11,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:11,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:11,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178213594] [2022-10-15 21:13:11,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:11,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:11,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:11,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:11,777 INFO L87 Difference]: Start difference. First operand 151 states and 191 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 21:13:12,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:12,099 INFO L93 Difference]: Finished difference Result 310 states and 400 transitions. [2022-10-15 21:13:12,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:13:12,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2022-10-15 21:13:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:12,103 INFO L225 Difference]: With dead ends: 310 [2022-10-15 21:13:12,103 INFO L226 Difference]: Without dead ends: 175 [2022-10-15 21:13:12,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:12,106 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 152 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:12,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 469 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:13:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-15 21:13:12,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2022-10-15 21:13:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 138 states have (on average 1.391304347826087) internal successors, (192), 147 states have internal predecessors, (192), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-15 21:13:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 218 transitions. [2022-10-15 21:13:12,136 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 218 transitions. Word has length 42 [2022-10-15 21:13:12,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:12,136 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 218 transitions. [2022-10-15 21:13:12,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 21:13:12,137 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 218 transitions. [2022-10-15 21:13:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 21:13:12,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:12,139 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-10-15 21:13:12,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:13:12,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:12,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash -664142540, now seen corresponding path program 1 times [2022-10-15 21:13:12,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:12,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580962588] [2022-10-15 21:13:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:12,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:12,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580962588] [2022-10-15 21:13:12,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580962588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:12,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:12,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:13:12,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865483315] [2022-10-15 21:13:12,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:12,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:12,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:12,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:12,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:12,441 INFO L87 Difference]: Start difference. First operand 170 states and 218 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:12,687 INFO L93 Difference]: Finished difference Result 330 states and 425 transitions. [2022-10-15 21:13:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:12,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-10-15 21:13:12,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:12,692 INFO L225 Difference]: With dead ends: 330 [2022-10-15 21:13:12,692 INFO L226 Difference]: Without dead ends: 326 [2022-10-15 21:13:12,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:12,695 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:12,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:13:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-10-15 21:13:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 314. [2022-10-15 21:13:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 273 states have internal predecessors, (367), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-15 21:13:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 415 transitions. [2022-10-15 21:13:12,745 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 415 transitions. Word has length 42 [2022-10-15 21:13:12,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:12,746 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 415 transitions. [2022-10-15 21:13:12,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:12,747 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 415 transitions. [2022-10-15 21:13:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:13:12,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:12,750 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:12,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:13:12,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:12,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash 984873632, now seen corresponding path program 1 times [2022-10-15 21:13:12,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:12,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492302020] [2022-10-15 21:13:12,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:12,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:13,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:13,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492302020] [2022-10-15 21:13:13,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492302020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:13,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:13,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:13,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972209073] [2022-10-15 21:13:13,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:13,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:13,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:13,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:13,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:13,099 INFO L87 Difference]: Start difference. First operand 314 states and 415 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:13,452 INFO L93 Difference]: Finished difference Result 834 states and 1097 transitions. [2022-10-15 21:13:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:13:13,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-10-15 21:13:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:13,459 INFO L225 Difference]: With dead ends: 834 [2022-10-15 21:13:13,459 INFO L226 Difference]: Without dead ends: 536 [2022-10-15 21:13:13,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:13,463 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 179 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:13,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 804 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:13:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-10-15 21:13:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 318. [2022-10-15 21:13:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 268 states have (on average 1.3843283582089552) internal successors, (371), 277 states have internal predecessors, (371), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-15 21:13:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 419 transitions. [2022-10-15 21:13:13,514 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 419 transitions. Word has length 49 [2022-10-15 21:13:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:13,514 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 419 transitions. [2022-10-15 21:13:13,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 419 transitions. [2022-10-15 21:13:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:13:13,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:13,518 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:13,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:13:13,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:13,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:13,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1370308291, now seen corresponding path program 1 times [2022-10-15 21:13:13,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:13,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604867809] [2022-10-15 21:13:13,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:13,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:13,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:13,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:13,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604867809] [2022-10-15 21:13:13,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604867809] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:13,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:13,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:13:13,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008891504] [2022-10-15 21:13:13,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:13,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:13,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:13,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:13,747 INFO L87 Difference]: Start difference. First operand 318 states and 419 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:14,007 INFO L93 Difference]: Finished difference Result 522 states and 719 transitions. [2022-10-15 21:13:14,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:13:14,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-10-15 21:13:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:14,013 INFO L225 Difference]: With dead ends: 522 [2022-10-15 21:13:14,014 INFO L226 Difference]: Without dead ends: 520 [2022-10-15 21:13:14,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:14,016 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 91 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:14,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 466 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:13:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-10-15 21:13:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 332. [2022-10-15 21:13:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 282 states have (on average 1.3865248226950355) internal successors, (391), 291 states have internal predecessors, (391), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-15 21:13:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 439 transitions. [2022-10-15 21:13:14,068 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 439 transitions. Word has length 52 [2022-10-15 21:13:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:14,069 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 439 transitions. [2022-10-15 21:13:14,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 439 transitions. [2022-10-15 21:13:14,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 21:13:14,072 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:14,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:14,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:13:14,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:14,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:14,074 INFO L85 PathProgramCache]: Analyzing trace with hash -614072209, now seen corresponding path program 1 times [2022-10-15 21:13:14,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:14,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780362809] [2022-10-15 21:13:14,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:14,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:14,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780362809] [2022-10-15 21:13:14,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780362809] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:14,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845113787] [2022-10-15 21:13:14,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:14,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:14,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:14,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:14,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:13:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:14,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:14,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:14,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:14,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845113787] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:14,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:14,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-15 21:13:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653549026] [2022-10-15 21:13:14,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:14,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:13:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:13:14,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:14,849 INFO L87 Difference]: Start difference. First operand 332 states and 439 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:15,407 INFO L93 Difference]: Finished difference Result 1107 states and 1593 transitions. [2022-10-15 21:13:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:13:15,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-10-15 21:13:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:15,420 INFO L225 Difference]: With dead ends: 1107 [2022-10-15 21:13:15,420 INFO L226 Difference]: Without dead ends: 1106 [2022-10-15 21:13:15,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:15,423 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 361 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:15,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1041 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:13:15,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-10-15 21:13:15,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 372. [2022-10-15 21:13:15,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 322 states have (on average 1.406832298136646) internal successors, (453), 331 states have internal predecessors, (453), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-15 21:13:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 501 transitions. [2022-10-15 21:13:15,496 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 501 transitions. Word has length 59 [2022-10-15 21:13:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:15,496 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 501 transitions. [2022-10-15 21:13:15,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 501 transitions. [2022-10-15 21:13:15,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 21:13:15,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:15,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:15,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:13:15,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:13:15,713 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:15,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:15,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1856369125, now seen corresponding path program 1 times [2022-10-15 21:13:15,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:15,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336538813] [2022-10-15 21:13:15,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:15,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:15,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:16,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:16,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336538813] [2022-10-15 21:13:16,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336538813] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:16,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180839472] [2022-10-15 21:13:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:16,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:16,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:16,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:16,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:13:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:16,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:16,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:16,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:13:16,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180839472] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:16,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:13:16,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 21:13:16,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822262454] [2022-10-15 21:13:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:16,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:16,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:16,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:16,409 INFO L87 Difference]: Start difference. First operand 372 states and 501 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:16,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:16,580 INFO L93 Difference]: Finished difference Result 627 states and 868 transitions. [2022-10-15 21:13:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:13:16,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2022-10-15 21:13:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:16,588 INFO L225 Difference]: With dead ends: 627 [2022-10-15 21:13:16,588 INFO L226 Difference]: Without dead ends: 626 [2022-10-15 21:13:16,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:16,590 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 153 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:16,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 465 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:13:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-10-15 21:13:16,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 371. [2022-10-15 21:13:16,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 322 states have (on average 1.3881987577639752) internal successors, (447), 330 states have internal predecessors, (447), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-10-15 21:13:16,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 495 transitions. [2022-10-15 21:13:16,652 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 495 transitions. Word has length 60 [2022-10-15 21:13:16,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:16,653 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 495 transitions. [2022-10-15 21:13:16,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 495 transitions. [2022-10-15 21:13:16,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 21:13:16,656 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:16,656 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:16,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:16,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-10-15 21:13:16,871 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:16,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:16,872 INFO L85 PathProgramCache]: Analyzing trace with hash -279528431, now seen corresponding path program 1 times [2022-10-15 21:13:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291571468] [2022-10-15 21:13:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:17,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:17,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291571468] [2022-10-15 21:13:17,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291571468] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:17,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843587008] [2022-10-15 21:13:17,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:17,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:17,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:17,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:17,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:13:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:17,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:17,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:17,657 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:17,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:17,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843587008] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:17,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:17,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2, 3] total 7 [2022-10-15 21:13:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147930876] [2022-10-15 21:13:17,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:17,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:13:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:17,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:13:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:13:17,787 INFO L87 Difference]: Start difference. First operand 371 states and 495 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 21:13:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:18,486 INFO L93 Difference]: Finished difference Result 922 states and 1226 transitions. [2022-10-15 21:13:18,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 21:13:18,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2022-10-15 21:13:18,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:18,495 INFO L225 Difference]: With dead ends: 922 [2022-10-15 21:13:18,495 INFO L226 Difference]: Without dead ends: 920 [2022-10-15 21:13:18,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:13:18,498 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 909 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:18,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 745 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 21:13:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-10-15 21:13:18,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 888. [2022-10-15 21:13:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 785 states have (on average 1.3936305732484076) internal successors, (1094), 793 states have internal predecessors, (1094), 57 states have call successors, (57), 37 states have call predecessors, (57), 37 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-10-15 21:13:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1208 transitions. [2022-10-15 21:13:18,623 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1208 transitions. Word has length 64 [2022-10-15 21:13:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:18,623 INFO L495 AbstractCegarLoop]: Abstraction has 888 states and 1208 transitions. [2022-10-15 21:13:18,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 21:13:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1208 transitions. [2022-10-15 21:13:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 21:13:18,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:18,627 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:18,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:18,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:18,841 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:18,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash -75446634, now seen corresponding path program 1 times [2022-10-15 21:13:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:18,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258585886] [2022-10-15 21:13:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:19,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:19,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258585886] [2022-10-15 21:13:19,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258585886] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:19,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569420543] [2022-10-15 21:13:19,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:19,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:19,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:19,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:19,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:13:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:19,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:19,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:19,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:13:19,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569420543] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:19,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:13:19,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:13:19,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417576890] [2022-10-15 21:13:19,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:19,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:19,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:19,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:19,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:19,638 INFO L87 Difference]: Start difference. First operand 888 states and 1208 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:19,809 INFO L93 Difference]: Finished difference Result 893 states and 1208 transitions. [2022-10-15 21:13:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:13:19,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2022-10-15 21:13:19,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:19,817 INFO L225 Difference]: With dead ends: 893 [2022-10-15 21:13:19,817 INFO L226 Difference]: Without dead ends: 891 [2022-10-15 21:13:19,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:19,821 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 245 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:19,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 424 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:13:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2022-10-15 21:13:19,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 886. [2022-10-15 21:13:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 785 states have (on average 1.3859872611464967) internal successors, (1088), 791 states have internal predecessors, (1088), 57 states have call successors, (57), 37 states have call predecessors, (57), 37 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-10-15 21:13:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1202 transitions. [2022-10-15 21:13:19,931 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1202 transitions. Word has length 65 [2022-10-15 21:13:19,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:19,932 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1202 transitions. [2022-10-15 21:13:19,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:19,933 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1202 transitions. [2022-10-15 21:13:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 21:13:19,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:19,935 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:19,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:20,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:20,152 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash -195849772, now seen corresponding path program 1 times [2022-10-15 21:13:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:20,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507250477] [2022-10-15 21:13:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:20,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:13:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:20,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:13:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:20,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 21:13:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:20,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:20,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507250477] [2022-10-15 21:13:20,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507250477] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:20,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:20,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:13:20,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219877277] [2022-10-15 21:13:20,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:20,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:20,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:20,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:20,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:20,430 INFO L87 Difference]: Start difference. First operand 886 states and 1202 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:13:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:20,799 INFO L93 Difference]: Finished difference Result 1584 states and 2128 transitions. [2022-10-15 21:13:20,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:20,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2022-10-15 21:13:20,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:20,812 INFO L225 Difference]: With dead ends: 1584 [2022-10-15 21:13:20,812 INFO L226 Difference]: Without dead ends: 1582 [2022-10-15 21:13:20,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:20,815 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 119 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:20,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 383 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:13:20,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2022-10-15 21:13:21,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1557. [2022-10-15 21:13:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1376 states have (on average 1.367732558139535) internal successors, (1882), 1382 states have internal predecessors, (1882), 107 states have call successors, (107), 67 states have call predecessors, (107), 67 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2022-10-15 21:13:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2096 transitions. [2022-10-15 21:13:21,028 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2096 transitions. Word has length 71 [2022-10-15 21:13:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:21,028 INFO L495 AbstractCegarLoop]: Abstraction has 1557 states and 2096 transitions. [2022-10-15 21:13:21,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:13:21,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2096 transitions. [2022-10-15 21:13:21,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 21:13:21,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:21,032 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:21,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 21:13:21,032 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:21,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:21,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1608379331, now seen corresponding path program 2 times [2022-10-15 21:13:21,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:21,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497517342] [2022-10-15 21:13:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:21,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:21,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:21,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:21,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497517342] [2022-10-15 21:13:21,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497517342] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:21,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633640480] [2022-10-15 21:13:21,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:13:21,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:21,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:21,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:21,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:13:21,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 21:13:21,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:13:21,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-15 21:13:21,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-15 21:13:21,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:13:21,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633640480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:21,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:13:21,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2022-10-15 21:13:21,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860143682] [2022-10-15 21:13:21,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:21,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:21,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:21,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:21,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:13:21,995 INFO L87 Difference]: Start difference. First operand 1557 states and 2096 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:22,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:22,287 INFO L93 Difference]: Finished difference Result 2877 states and 3868 transitions. [2022-10-15 21:13:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:13:22,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2022-10-15 21:13:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:22,299 INFO L225 Difference]: With dead ends: 2877 [2022-10-15 21:13:22,299 INFO L226 Difference]: Without dead ends: 1349 [2022-10-15 21:13:22,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-10-15 21:13:22,306 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 180 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:22,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 831 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:13:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-10-15 21:13:22,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1314. [2022-10-15 21:13:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1160 states have (on average 1.361206896551724) internal successors, (1579), 1166 states have internal predecessors, (1579), 90 states have call successors, (90), 57 states have call predecessors, (90), 57 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-15 21:13:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1759 transitions. [2022-10-15 21:13:22,482 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1759 transitions. Word has length 80 [2022-10-15 21:13:22,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:22,482 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1759 transitions. [2022-10-15 21:13:22,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:13:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1759 transitions. [2022-10-15 21:13:22,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 21:13:22,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:22,485 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:22,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:22,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 21:13:22,702 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:22,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:22,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1912404527, now seen corresponding path program 1 times [2022-10-15 21:13:22,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:22,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093630622] [2022-10-15 21:13:22,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:22,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:23,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:13:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:23,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:23,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093630622] [2022-10-15 21:13:23,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093630622] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:23,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51932965] [2022-10-15 21:13:23,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:23,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:23,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:23,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:23,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:13:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:23,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 21:13:23,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:23,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:23,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51932965] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:23,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:23,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-15 21:13:23,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930592285] [2022-10-15 21:13:23,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:23,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:13:23,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:23,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:13:23,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:13:23,617 INFO L87 Difference]: Start difference. First operand 1314 states and 1759 transitions. Second operand has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:13:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:25,224 INFO L93 Difference]: Finished difference Result 7391 states and 10787 transitions. [2022-10-15 21:13:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 21:13:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 87 [2022-10-15 21:13:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:25,319 INFO L225 Difference]: With dead ends: 7391 [2022-10-15 21:13:25,319 INFO L226 Difference]: Without dead ends: 7390 [2022-10-15 21:13:25,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:13:25,327 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1326 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:25,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 1571 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 21:13:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7390 states. [2022-10-15 21:13:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7390 to 1650. [2022-10-15 21:13:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1496 states have (on average 1.3763368983957218) internal successors, (2059), 1502 states have internal predecessors, (2059), 90 states have call successors, (90), 57 states have call predecessors, (90), 57 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-15 21:13:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2239 transitions. [2022-10-15 21:13:25,724 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2239 transitions. Word has length 87 [2022-10-15 21:13:25,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:25,725 INFO L495 AbstractCegarLoop]: Abstraction has 1650 states and 2239 transitions. [2022-10-15 21:13:25,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:13:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2239 transitions. [2022-10-15 21:13:25,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 21:13:25,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:25,728 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:25,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:25,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:25,941 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:25,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:25,943 INFO L85 PathProgramCache]: Analyzing trace with hash 183791844, now seen corresponding path program 1 times [2022-10-15 21:13:25,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:25,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123524269] [2022-10-15 21:13:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:13:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:13:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:13:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:13:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:13:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:26,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:26,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123524269] [2022-10-15 21:13:26,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123524269] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:26,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934135814] [2022-10-15 21:13:26,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:26,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:26,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:26,288 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:26,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:13:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:26,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:26,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:13:26,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:26,905 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:26,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934135814] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:26,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:26,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-15 21:13:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651054159] [2022-10-15 21:13:26,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:26,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:13:26,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:13:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:13:26,909 INFO L87 Difference]: Start difference. First operand 1650 states and 2239 transitions. Second operand has 9 states, 8 states have (on average 24.75) internal successors, (198), 7 states have internal predecessors, (198), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2022-10-15 21:13:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:28,307 INFO L93 Difference]: Finished difference Result 4114 states and 5599 transitions. [2022-10-15 21:13:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-15 21:13:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 24.75) internal successors, (198), 7 states have internal predecessors, (198), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) Word has length 93 [2022-10-15 21:13:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:28,337 INFO L225 Difference]: With dead ends: 4114 [2022-10-15 21:13:28,337 INFO L226 Difference]: Without dead ends: 4112 [2022-10-15 21:13:28,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2022-10-15 21:13:28,341 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1148 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:28,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 777 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 21:13:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2022-10-15 21:13:28,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 3197. [2022-10-15 21:13:28,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 2908 states have (on average 1.376547455295736) internal successors, (4003), 2913 states have internal predecessors, (4003), 174 states have call successors, (174), 109 states have call predecessors, (174), 109 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2022-10-15 21:13:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4351 transitions. [2022-10-15 21:13:28,840 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4351 transitions. Word has length 93 [2022-10-15 21:13:28,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:28,841 INFO L495 AbstractCegarLoop]: Abstraction has 3197 states and 4351 transitions. [2022-10-15 21:13:28,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 24.75) internal successors, (198), 7 states have internal predecessors, (198), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (19), 6 states have call predecessors, (19), 6 states have call successors, (19) [2022-10-15 21:13:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4351 transitions. [2022-10-15 21:13:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-15 21:13:28,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:28,845 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:28,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:29,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:29,061 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:29,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:29,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1402580120, now seen corresponding path program 1 times [2022-10-15 21:13:29,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:29,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762891207] [2022-10-15 21:13:29,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:29,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:13:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:13:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:13:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:13:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-15 21:13:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:29,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:29,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762891207] [2022-10-15 21:13:29,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762891207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:29,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968295757] [2022-10-15 21:13:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:29,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:29,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:29,453 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:29,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:13:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:29,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:13:29,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:13:29,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:13:29,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968295757] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:29,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:13:29,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 21:13:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351840152] [2022-10-15 21:13:29,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:29,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:29,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:29,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:29,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:29,893 INFO L87 Difference]: Start difference. First operand 3197 states and 4351 transitions. Second operand has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 21:13:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:30,397 INFO L93 Difference]: Finished difference Result 3894 states and 5299 transitions. [2022-10-15 21:13:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:13:30,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2022-10-15 21:13:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:30,424 INFO L225 Difference]: With dead ends: 3894 [2022-10-15 21:13:30,424 INFO L226 Difference]: Without dead ends: 3892 [2022-10-15 21:13:30,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:13:30,428 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:30,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 399 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:13:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2022-10-15 21:13:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 2501. [2022-10-15 21:13:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2278 states have (on average 1.3726953467954346) internal successors, (3127), 2281 states have internal predecessors, (3127), 134 states have call successors, (134), 85 states have call predecessors, (134), 85 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-15 21:13:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3395 transitions. [2022-10-15 21:13:30,922 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3395 transitions. Word has length 94 [2022-10-15 21:13:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:30,922 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3395 transitions. [2022-10-15 21:13:30,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 21:13:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3395 transitions. [2022-10-15 21:13:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-15 21:13:30,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:30,934 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:30,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:31,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 21:13:31,149 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:31,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:31,150 INFO L85 PathProgramCache]: Analyzing trace with hash 713770961, now seen corresponding path program 2 times [2022-10-15 21:13:31,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:31,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213144581] [2022-10-15 21:13:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:31,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:13:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:32,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:32,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213144581] [2022-10-15 21:13:32,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213144581] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:32,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908192042] [2022-10-15 21:13:32,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:13:32,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:32,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:32,056 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:32,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:13:32,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 21:13:32,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:13:32,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-15 21:13:32,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-10-15 21:13:32,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:13:32,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908192042] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:32,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:13:32,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 17 [2022-10-15 21:13:32,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884083550] [2022-10-15 21:13:32,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:32,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:32,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:32,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:32,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-15 21:13:32,555 INFO L87 Difference]: Start difference. First operand 2501 states and 3395 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:13:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:32,955 INFO L93 Difference]: Finished difference Result 4975 states and 6756 transitions. [2022-10-15 21:13:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 129 [2022-10-15 21:13:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:32,997 INFO L225 Difference]: With dead ends: 4975 [2022-10-15 21:13:32,997 INFO L226 Difference]: Without dead ends: 2501 [2022-10-15 21:13:33,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-10-15 21:13:33,013 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 54 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:33,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 501 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:13:33,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2022-10-15 21:13:33,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2022-10-15 21:13:33,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2278 states have (on average 1.3722563652326603) internal successors, (3126), 2281 states have internal predecessors, (3126), 134 states have call successors, (134), 85 states have call predecessors, (134), 85 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-15 21:13:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3394 transitions. [2022-10-15 21:13:33,390 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3394 transitions. Word has length 129 [2022-10-15 21:13:33,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:33,391 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3394 transitions. [2022-10-15 21:13:33,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:13:33,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3394 transitions. [2022-10-15 21:13:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-15 21:13:33,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:33,398 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:33,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-15 21:13:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-15 21:13:33,614 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:33,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash 448274713, now seen corresponding path program 1 times [2022-10-15 21:13:33,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:33,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949252000] [2022-10-15 21:13:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:33,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:34,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:34,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:13:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:13:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:34,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:34,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949252000] [2022-10-15 21:13:34,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949252000] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:34,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59935689] [2022-10-15 21:13:34,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:34,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:34,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:34,581 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:34,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:13:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:34,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 21:13:34,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:35,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:35,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59935689] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:35,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:35,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-15 21:13:35,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890194198] [2022-10-15 21:13:35,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:35,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-15 21:13:35,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-15 21:13:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-15 21:13:35,476 INFO L87 Difference]: Start difference. First operand 2501 states and 3394 transitions. Second operand has 26 states, 25 states have (on average 8.36) internal successors, (209), 25 states have internal predecessors, (209), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:13:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:40,457 INFO L93 Difference]: Finished difference Result 23800 states and 34838 transitions. [2022-10-15 21:13:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-15 21:13:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.36) internal successors, (209), 25 states have internal predecessors, (209), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 135 [2022-10-15 21:13:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:40,585 INFO L225 Difference]: With dead ends: 23800 [2022-10-15 21:13:40,586 INFO L226 Difference]: Without dead ends: 23799 [2022-10-15 21:13:40,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2022-10-15 21:13:40,601 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 5569 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5746 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:40,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5746 Valid, 2532 Invalid, 1736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [826 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:13:40,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23799 states. [2022-10-15 21:13:41,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23799 to 3509. [2022-10-15 21:13:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 3286 states have (on average 1.389531345100426) internal successors, (4566), 3289 states have internal predecessors, (4566), 134 states have call successors, (134), 85 states have call predecessors, (134), 85 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-15 21:13:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 4834 transitions. [2022-10-15 21:13:41,751 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 4834 transitions. Word has length 135 [2022-10-15 21:13:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:41,752 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 4834 transitions. [2022-10-15 21:13:41,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.36) internal successors, (209), 25 states have internal predecessors, (209), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:13:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 4834 transitions. [2022-10-15 21:13:41,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-15 21:13:41,759 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:41,759 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:41,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 21:13:41,974 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1719039142, now seen corresponding path program 1 times [2022-10-15 21:13:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:41,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000632555] [2022-10-15 21:13:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:41,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:13:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:13:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:42,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:42,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000632555] [2022-10-15 21:13:42,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000632555] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:13:42,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828023219] [2022-10-15 21:13:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:42,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:13:42,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:42,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:13:42,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 21:13:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:42,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 21:13:42,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:13:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:43,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:13:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:13:43,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828023219] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:13:43,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:13:43,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2022-10-15 21:13:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218593934] [2022-10-15 21:13:43,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:13:43,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:13:43,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:13:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:13:43,362 INFO L87 Difference]: Start difference. First operand 3509 states and 4834 transitions. Second operand has 14 states, 13 states have (on average 22.53846153846154) internal successors, (293), 13 states have internal predecessors, (293), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-15 21:13:45,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:45,801 INFO L93 Difference]: Finished difference Result 8723 states and 12020 transitions. [2022-10-15 21:13:45,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-15 21:13:45,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 22.53846153846154) internal successors, (293), 13 states have internal predecessors, (293), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2022-10-15 21:13:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:45,842 INFO L225 Difference]: With dead ends: 8723 [2022-10-15 21:13:45,843 INFO L226 Difference]: Without dead ends: 8721 [2022-10-15 21:13:45,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:13:45,853 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 2154 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2251 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:45,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2251 Valid, 1520 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-15 21:13:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2022-10-15 21:13:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 8639. [2022-10-15 21:13:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8639 states, 8104 states have (on average 1.3904244817374136) internal successors, (11268), 8107 states have internal predecessors, (11268), 326 states have call successors, (326), 205 states have call predecessors, (326), 205 states have return successors, (326), 326 states have call predecessors, (326), 326 states have call successors, (326) [2022-10-15 21:13:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8639 states to 8639 states and 11920 transitions. [2022-10-15 21:13:47,314 INFO L78 Accepts]: Start accepts. Automaton has 8639 states and 11920 transitions. Word has length 141 [2022-10-15 21:13:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:47,315 INFO L495 AbstractCegarLoop]: Abstraction has 8639 states and 11920 transitions. [2022-10-15 21:13:47,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 22.53846153846154) internal successors, (293), 13 states have internal predecessors, (293), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-15 21:13:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8639 states and 11920 transitions. [2022-10-15 21:13:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-15 21:13:47,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:47,326 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:47,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 21:13:47,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-15 21:13:47,543 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:47,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash -691126788, now seen corresponding path program 1 times [2022-10-15 21:13:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:47,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840856757] [2022-10-15 21:13:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:47,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:13:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:13:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:13:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:13:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:13:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-15 21:13:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-15 21:13:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 21:13:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-15 21:13:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:48,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 21:13:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:48,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-15 21:13:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:48,026 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-15 21:13:48,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:48,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840856757] [2022-10-15 21:13:48,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840856757] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:48,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:48,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:13:48,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244377213] [2022-10-15 21:13:48,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:48,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:48,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:48,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:48,031 INFO L87 Difference]: Start difference. First operand 8639 states and 11920 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:13:49,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:49,604 INFO L93 Difference]: Finished difference Result 14153 states and 19494 transitions. [2022-10-15 21:13:49,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:49,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 172 [2022-10-15 21:13:49,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:49,642 INFO L225 Difference]: With dead ends: 14153 [2022-10-15 21:13:49,643 INFO L226 Difference]: Without dead ends: 8463 [2022-10-15 21:13:49,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:49,658 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 48 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:49,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 416 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:13:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2022-10-15 21:13:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 8379. [2022-10-15 21:13:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8379 states, 7844 states have (on average 1.3829678735339113) internal successors, (10848), 7847 states have internal predecessors, (10848), 326 states have call successors, (326), 205 states have call predecessors, (326), 205 states have return successors, (326), 326 states have call predecessors, (326), 326 states have call successors, (326) [2022-10-15 21:13:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 11500 transitions. [2022-10-15 21:13:50,961 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 11500 transitions. Word has length 172 [2022-10-15 21:13:50,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:50,961 INFO L495 AbstractCegarLoop]: Abstraction has 8379 states and 11500 transitions. [2022-10-15 21:13:50,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:13:50,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 11500 transitions. [2022-10-15 21:13:50,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-15 21:13:50,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:50,976 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:50,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 21:13:50,977 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:13:50,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:50,978 INFO L85 PathProgramCache]: Analyzing trace with hash -399335955, now seen corresponding path program 1 times [2022-10-15 21:13:50,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:50,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444916818] [2022-10-15 21:13:50,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:50,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:13:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:13:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:51,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:13:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat