/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:19:02,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:19:02,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:19:02,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:19:02,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:19:02,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:19:02,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:19:02,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:19:02,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:19:02,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:19:02,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:19:02,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:19:02,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:19:02,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:19:02,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:19:02,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:19:02,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:19:02,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:19:02,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:19:02,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:19:02,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:19:02,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:19:02,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:19:02,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:19:02,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:19:02,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:19:02,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:19:02,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:19:02,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:19:02,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 02:19:02,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:19:02,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:19:02,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:19:02,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:19:02,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:19:02,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:19:02,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:19:02,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:19:02,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:19:02,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:19:02,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:19:02,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:19:02,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:19:02,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:19:02,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:19:02,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:19:02,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:19:02,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:19:02,633 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:19:02,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:19:02,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:19:02,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:19:02,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:19:02,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:19:02,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:19:02,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:19:02,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:19:02,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:19:02,636 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:19:02,636 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:19:02,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:19:02,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:19:02,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:19:02,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:19:02,849 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:19:02,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound2.c [2022-01-11 02:19:02,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e3542a3/62f171b85bd14bccaeead8a1f6bf5e39/FLAG0af9955e5 [2022-01-11 02:19:03,264 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:19:03,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound2.c [2022-01-11 02:19:03,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e3542a3/62f171b85bd14bccaeead8a1f6bf5e39/FLAG0af9955e5 [2022-01-11 02:19:03,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e3542a3/62f171b85bd14bccaeead8a1f6bf5e39 [2022-01-11 02:19:03,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:19:03,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:19:03,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:19:03,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:19:03,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:19:03,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30aa6b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03, skipping insertion in model container [2022-01-11 02:19:03,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:19:03,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:19:03,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound2.c[588,601] [2022-01-11 02:19:03,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:19:03,451 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:19:03,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound2.c[588,601] [2022-01-11 02:19:03,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:19:03,475 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:19:03,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03 WrapperNode [2022-01-11 02:19:03,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:19:03,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:19:03,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:19:03,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:19:03,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,519 INFO L137 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 103 [2022-01-11 02:19:03,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:19:03,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:19:03,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:19:03,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:19:03,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:19:03,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:19:03,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:19:03,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:19:03,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (1/1) ... [2022-01-11 02:19:03,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:19:03,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:03,568 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) [2022-01-11 02:19:03,584 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 [2022-01-11 02:19:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:19:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:19:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:19:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:19:03,640 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:19:03,641 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:19:04,574 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:19:04,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:19:04,579 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 02:19:04,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:19:04 BoogieIcfgContainer [2022-01-11 02:19:04,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:19:04,581 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:19:04,581 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:19:04,581 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:19:04,583 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:19:04" (1/1) ... [2022-01-11 02:19:04,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:19:04 BasicIcfg [2022-01-11 02:19:04,655 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:19:04,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:19:04,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:19:04,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:19:04,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:19:03" (1/4) ... [2022-01-11 02:19:04,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e51409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:19:04, skipping insertion in model container [2022-01-11 02:19:04,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:19:03" (2/4) ... [2022-01-11 02:19:04,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e51409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:19:04, skipping insertion in model container [2022-01-11 02:19:04,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:19:04" (3/4) ... [2022-01-11 02:19:04,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e51409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:19:04, skipping insertion in model container [2022-01-11 02:19:04,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:19:04" (4/4) ... [2022-01-11 02:19:04,660 INFO L111 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound2.cTransformedIcfg [2022-01-11 02:19:04,663 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:19:04,664 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-01-11 02:19:04,694 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:19:04,699 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 02:19:04,699 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-01-11 02:19:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 42 states have (on average 1.619047619047619) internal successors, (68), 53 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 02:19:04,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:04,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:04,721 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:04,724 INFO L85 PathProgramCache]: Analyzing trace with hash -563263233, now seen corresponding path program 1 times [2022-01-11 02:19:04,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:04,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505925813] [2022-01-11 02:19:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:04,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:04,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:04,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505925813] [2022-01-11 02:19:04,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505925813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:19:04,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:19:04,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:19:04,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549564187] [2022-01-11 02:19:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:19:04,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:19:04,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:04,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:19:04,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:19:04,905 INFO L87 Difference]: Start difference. First operand has 54 states, 42 states have (on average 1.619047619047619) internal successors, (68), 53 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:04,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:04,929 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2022-01-11 02:19:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:19:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-01-11 02:19:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:04,939 INFO L225 Difference]: With dead ends: 105 [2022-01-11 02:19:04,939 INFO L226 Difference]: Without dead ends: 50 [2022-01-11 02:19:04,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:19:04,943 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:04,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:19:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-11 02:19:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-01-11 02:19:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2022-01-11 02:19:04,973 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 7 [2022-01-11 02:19:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:04,974 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2022-01-11 02:19:04,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2022-01-11 02:19:04,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 02:19:04,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:04,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:04,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:19:04,976 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash -562339712, now seen corresponding path program 1 times [2022-01-11 02:19:04,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:04,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863032462] [2022-01-11 02:19:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:04,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:05,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:05,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863032462] [2022-01-11 02:19:05,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863032462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:19:05,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:19:05,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:19:05,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577445838] [2022-01-11 02:19:05,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:19:05,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:19:05,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:05,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:19:05,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:19:05,165 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:07,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:09,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:11,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:11,720 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2022-01-11 02:19:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:19:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-01-11 02:19:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:11,723 INFO L225 Difference]: With dead ends: 96 [2022-01-11 02:19:11,723 INFO L226 Difference]: Without dead ends: 92 [2022-01-11 02:19:11,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:19:11,724 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 31 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:11,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 86 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 6.5s Time] [2022-01-11 02:19:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-01-11 02:19:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 64. [2022-01-11 02:19:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 63 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2022-01-11 02:19:11,740 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 7 [2022-01-11 02:19:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:11,740 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2022-01-11 02:19:11,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2022-01-11 02:19:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 02:19:11,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:11,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:11,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:19:11,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash 757453253, now seen corresponding path program 1 times [2022-01-11 02:19:11,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:11,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535514955] [2022-01-11 02:19:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:11,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:11,759 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:11,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425643955] [2022-01-11 02:19:11,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:11,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:11,771 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) [2022-01-11 02:19:11,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:19:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:11,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-11 02:19:11,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:12,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:19:12,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:12,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535514955] [2022-01-11 02:19:12,020 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:12,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425643955] [2022-01-11 02:19:12,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425643955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:19:12,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:19:12,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:19:12,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625929653] [2022-01-11 02:19:12,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:19:12,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:19:12,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:12,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:19:12,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:19:12,023 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:14,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:16,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:18,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:18,601 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2022-01-11 02:19:18,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:19:18,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-11 02:19:18,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:18,602 INFO L225 Difference]: With dead ends: 92 [2022-01-11 02:19:18,603 INFO L226 Difference]: Without dead ends: 90 [2022-01-11 02:19:18,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:19:18,604 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:18,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 89 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 6.5s Time] [2022-01-11 02:19:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-01-11 02:19:18,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 64. [2022-01-11 02:19:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 63 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2022-01-11 02:19:18,613 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 9 [2022-01-11 02:19:18,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:18,613 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2022-01-11 02:19:18,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:18,613 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2022-01-11 02:19:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:19:18,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:18,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:18,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 02:19:18,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:18,828 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:18,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2063140618, now seen corresponding path program 1 times [2022-01-11 02:19:18,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:18,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802731549] [2022-01-11 02:19:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:18,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:18,839 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:18,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013912315] [2022-01-11 02:19:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:18,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:18,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:18,843 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) [2022-01-11 02:19:18,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:19:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:18,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-11 02:19:18,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:19,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:19:19,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802731549] [2022-01-11 02:19:19,037 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013912315] [2022-01-11 02:19:19,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013912315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:19:19,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:19:19,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:19:19,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551244596] [2022-01-11 02:19:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:19:19,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:19:19,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:19:19,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:19:19,039 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:19,530 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-01-11 02:19:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:19:19,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-11 02:19:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:19,531 INFO L225 Difference]: With dead ends: 90 [2022-01-11 02:19:19,531 INFO L226 Difference]: Without dead ends: 86 [2022-01-11 02:19:19,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:19:19,532 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 32 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:19,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 92 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 02:19:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-01-11 02:19:19,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2022-01-11 02:19:19,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 65 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:19,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2022-01-11 02:19:19,540 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 11 [2022-01-11 02:19:19,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:19,541 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2022-01-11 02:19:19,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:19,541 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2022-01-11 02:19:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 02:19:19,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:19,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:19,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 02:19:19,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-11 02:19:19,774 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1596719025, now seen corresponding path program 1 times [2022-01-11 02:19:19,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:19,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153643881] [2022-01-11 02:19:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:19,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:19,785 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:19,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841138188] [2022-01-11 02:19:19,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:19,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:19,790 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) [2022-01-11 02:19:19,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 02:19:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:19,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-11 02:19:19,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:19,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:19:19,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:19,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153643881] [2022-01-11 02:19:19,961 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:19,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841138188] [2022-01-11 02:19:19,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841138188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:19:19,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:19:19,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:19:19,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921230848] [2022-01-11 02:19:19,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:19:19,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:19:19,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:19,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:19:19,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:19:19,963 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:21,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:19:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:22,282 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2022-01-11 02:19:22,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:19:22,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-11 02:19:22,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:22,282 INFO L225 Difference]: With dead ends: 86 [2022-01-11 02:19:22,283 INFO L226 Difference]: Without dead ends: 62 [2022-01-11 02:19:22,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:19:22,283 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:22,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 84 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-11 02:19:22,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-01-11 02:19:22,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-01-11 02:19:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 61 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2022-01-11 02:19:22,290 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 13 [2022-01-11 02:19:22,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:22,290 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2022-01-11 02:19:22,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2022-01-11 02:19:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 02:19:22,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:22,291 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:22,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-11 02:19:22,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:22,496 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:22,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:22,496 INFO L85 PathProgramCache]: Analyzing trace with hash 990421732, now seen corresponding path program 1 times [2022-01-11 02:19:22,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:22,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828196290] [2022-01-11 02:19:22,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:22,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:22,506 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:22,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375838810] [2022-01-11 02:19:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:22,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:22,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:22,508 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) [2022-01-11 02:19:22,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-11 02:19:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:22,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-11 02:19:22,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:22,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:19:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:23,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828196290] [2022-01-11 02:19:23,185 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375838810] [2022-01-11 02:19:23,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375838810] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:19:23,186 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:19:23,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-11 02:19:23,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084786591] [2022-01-11 02:19:23,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:19:23,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:19:23,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:19:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:19:23,187 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:24,699 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2022-01-11 02:19:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 02:19:24,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-11 02:19:24,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:24,701 INFO L225 Difference]: With dead ends: 104 [2022-01-11 02:19:24,701 INFO L226 Difference]: Without dead ends: 100 [2022-01-11 02:19:24,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-11 02:19:24,702 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 111 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:24,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 99 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-11 02:19:24,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-01-11 02:19:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 58. [2022-01-11 02:19:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.183673469387755) internal successors, (58), 57 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2022-01-11 02:19:24,712 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 19 [2022-01-11 02:19:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:24,712 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2022-01-11 02:19:24,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2022-01-11 02:19:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-11 02:19:24,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:24,713 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:24,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-11 02:19:24,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:24,918 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:24,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:24,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1687418071, now seen corresponding path program 1 times [2022-01-11 02:19:24,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:24,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736521593] [2022-01-11 02:19:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:24,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:24,928 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:24,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970731511] [2022-01-11 02:19:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:24,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:24,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:24,929 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) [2022-01-11 02:19:24,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-11 02:19:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:25,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-11 02:19:25,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:25,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:19:29,887 WARN L860 $PredicateComparison]: unable to prove that (= (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616) (mod (let ((.cse1 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 1) 18446744073709551616))) (let ((.cse0 (mod (* .cse1 3) 18446744073709551616))) (+ .cse0 (mod (* .cse0 .cse1) 18446744073709551616) 1))) 18446744073709551616)) is different from true [2022-01-11 02:19:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-01-11 02:19:36,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:36,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736521593] [2022-01-11 02:19:36,014 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:36,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970731511] [2022-01-11 02:19:36,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970731511] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:19:36,015 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:19:36,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-11 02:19:36,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949223782] [2022-01-11 02:19:36,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:19:36,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:19:36,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:19:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=19, Unknown=2, NotChecked=8, Total=42 [2022-01-11 02:19:36,016 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:38,995 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2022-01-11 02:19:38,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 02:19:38,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-11 02:19:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:38,996 INFO L225 Difference]: With dead ends: 100 [2022-01-11 02:19:38,996 INFO L226 Difference]: Without dead ends: 98 [2022-01-11 02:19:38,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=23, Invalid=35, Unknown=2, NotChecked=12, Total=72 [2022-01-11 02:19:38,997 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 45 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:38,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 136 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 93 Invalid, 0 Unknown, 86 Unchecked, 0.9s Time] [2022-01-11 02:19:38,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-01-11 02:19:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 62. [2022-01-11 02:19:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.169811320754717) internal successors, (62), 61 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2022-01-11 02:19:39,010 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 21 [2022-01-11 02:19:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:39,010 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2022-01-11 02:19:39,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:39,010 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2022-01-11 02:19:39,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 02:19:39,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:39,011 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:39,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-11 02:19:39,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:39,212 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:39,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1888909166, now seen corresponding path program 1 times [2022-01-11 02:19:39,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:39,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613611344] [2022-01-11 02:19:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:39,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:39,226 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:39,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250403647] [2022-01-11 02:19:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:39,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:39,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:39,228 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) [2022-01-11 02:19:39,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-11 02:19:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:39,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-11 02:19:39,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:39,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:19:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:43,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:43,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613611344] [2022-01-11 02:19:43,366 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:43,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250403647] [2022-01-11 02:19:43,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250403647] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:19:43,366 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:19:43,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-11 02:19:43,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262745432] [2022-01-11 02:19:43,366 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:19:43,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:19:43,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:43,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:19:43,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:19:43,367 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:19:44,790 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2022-01-11 02:19:44,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 02:19:44,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-11 02:19:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:19:44,791 INFO L225 Difference]: With dead ends: 98 [2022-01-11 02:19:44,791 INFO L226 Difference]: Without dead ends: 96 [2022-01-11 02:19:44,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-11 02:19:44,792 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 67 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-11 02:19:44,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 120 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-11 02:19:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-01-11 02:19:44,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 64. [2022-01-11 02:19:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 63 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2022-01-11 02:19:44,799 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 23 [2022-01-11 02:19:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:19:44,799 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2022-01-11 02:19:44,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2022-01-11 02:19:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-11 02:19:44,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:19:44,800 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:19:44,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-11 02:19:45,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:45,001 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 02:19:45,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:19:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1529419853, now seen corresponding path program 1 times [2022-01-11 02:19:45,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:19:45,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644328738] [2022-01-11 02:19:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:45,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:19:45,014 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:19:45,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383040572] [2022-01-11 02:19:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:19:45,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:19:45,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:19:45,019 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) [2022-01-11 02:19:45,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-11 02:19:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:19:45,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-11 02:19:45,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:19:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:45,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:19:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:19:47,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:19:47,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644328738] [2022-01-11 02:19:47,334 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:19:47,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383040572] [2022-01-11 02:19:47,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383040572] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:19:47,334 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:19:47,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-11 02:19:47,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081059564] [2022-01-11 02:19:47,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:19:47,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:19:47,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:19:47,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:19:47,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:19:47,335 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:19:49,729 WARN L838 $PredicateComparison]: unable to prove that (and (= (mod (let ((.cse0 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616)) (.cse1 (mod (+ 6 |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616))) (+ (mod (* 18446744073709551615 (mod (* 12 .cse0) 18446744073709551616)) 18446744073709551616) (mod (* .cse1 .cse0) 18446744073709551616) (mod (* 18446744073709551615 (mod (* (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) 18) 18446744073709551616)) 18446744073709551616) 18446744073709551610 (mod (* 2 .cse1) 18446744073709551616))) 18446744073709551616) 0) (<= 1 |c_ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= (mod (+ 18446744073709551610 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616) (mod (* 2 |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616) (mod (* (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 12) 18446744073709551616) 18446744073709551615) 18446744073709551616) (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 18) 18446744073709551616)) 18446744073709551616)) 18446744073709551616) 0)) is different from false [2022-01-11 02:20:01,686 WARN L228 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-11 02:20:03,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:20:05,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:20:08,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:20:10,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:20:12,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:20:18,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:20:21,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []