/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_NONE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:30:59,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:30:59,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:30:59,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:30:59,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:30:59,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:30:59,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:30:59,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:30:59,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:30:59,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:30:59,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:30:59,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:30:59,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:30:59,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:30:59,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:30:59,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:30:59,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:30:59,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:30:59,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:30:59,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:30:59,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:30:59,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:30:59,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:30:59,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:30:59,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:30:59,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:30:59,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:30:59,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:30:59,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:30:59,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:30:59,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:30:59,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:30:59,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:30:59,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:30:59,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:30:59,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:30:59,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:30:59,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:30:59,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:30:59,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:30:59,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:30:59,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:30:59,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:30:59,649 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:30:59,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:30:59,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:30:59,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:30:59,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:30:59,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:30:59,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:30:59,650 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:30:59,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:30:59,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:30:59,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:30:59,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:30:59,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:30:59,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:30:59,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:30:59,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:30:59,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:30:59,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:30:59,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:30:59,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:30:59,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:30:59,654 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:30:59,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:30:59,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:30:59,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:30:59,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:30:59,656 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:30:59,656 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:30:59,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:30:59,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:30:59,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:30:59,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:30:59,852 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:30:59,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound1.c [2022-01-10 20:30:59,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac57eda4b/b0e01216d123416ea002b83c5bc631ec/FLAG5fcdf0750 [2022-01-10 20:31:00,265 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:31:00,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound1.c [2022-01-10 20:31:00,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac57eda4b/b0e01216d123416ea002b83c5bc631ec/FLAG5fcdf0750 [2022-01-10 20:31:00,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac57eda4b/b0e01216d123416ea002b83c5bc631ec [2022-01-10 20:31:00,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:31:00,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:31:00,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:31:00,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:31:00,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:31:00,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f00e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00, skipping insertion in model container [2022-01-10 20:31:00,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:31:00,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:31:00,820 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_valuebound1.c[588,601] [2022-01-10 20:31:00,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:31:00,849 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:31:00,863 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_valuebound1.c[588,601] [2022-01-10 20:31:00,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:31:00,892 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:31:00,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00 WrapperNode [2022-01-10 20:31:00,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:31:00,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:31:00,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:31:00,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:31:00,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,916 INFO L137 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 103 [2022-01-10 20:31:00,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:31:00,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:31:00,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:31:00,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:31:00,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:31:00,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:31:00,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:31:00,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:31:00,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (1/1) ... [2022-01-10 20:31:00,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:31:00,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:00,962 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) [2022-01-10 20:31:00,963 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 [2022-01-10 20:31:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:31:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:31:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:31:00,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:31:01,022 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:31:01,023 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:31:01,919 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:31:01,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:31:01,924 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:31:01,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:31:01 BoogieIcfgContainer [2022-01-10 20:31:01,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:31:01,925 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:31:01,925 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:31:01,926 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:31:01,928 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:31:01" (1/1) ... [2022-01-10 20:31:02,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:31:02 BasicIcfg [2022-01-10 20:31:02,009 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:31:02,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:31:02,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:31:02,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:31:02,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:31:00" (1/4) ... [2022-01-10 20:31:02,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4674de0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:31:02, skipping insertion in model container [2022-01-10 20:31:02,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:31:00" (2/4) ... [2022-01-10 20:31:02,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4674de0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:31:02, skipping insertion in model container [2022-01-10 20:31:02,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:31:01" (3/4) ... [2022-01-10 20:31:02,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4674de0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:31:02, skipping insertion in model container [2022-01-10 20:31:02,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:31:02" (4/4) ... [2022-01-10 20:31:02,014 INFO L111 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound1.cTransformedIcfg [2022-01-10 20:31:02,017 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:31:02,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-01-10 20:31:02,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:31:02,064 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 [2022-01-10 20:31:02,065 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-01-10 20:31:02,074 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) [2022-01-10 20:31:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 20:31:02,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:02,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:02,078 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)] === [2022-01-10 20:31:02,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash -563263233, now seen corresponding path program 1 times [2022-01-10 20:31:02,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:02,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888036210] [2022-01-10 20:31:02,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:02,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:02,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:02,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888036210] [2022-01-10 20:31:02,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888036210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:31:02,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:31:02,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:31:02,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135752627] [2022-01-10 20:31:02,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:31:02,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:31:02,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:31:02,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:31:02,257 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) [2022-01-10 20:31:02,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:02,281 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2022-01-10 20:31:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:31:02,283 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 [2022-01-10 20:31:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:02,287 INFO L225 Difference]: With dead ends: 105 [2022-01-10 20:31:02,288 INFO L226 Difference]: Without dead ends: 50 [2022-01-10 20:31:02,289 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 [2022-01-10 20:31:02,291 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 [2022-01-10 20:31:02,292 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] [2022-01-10 20:31:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-10 20:31:02,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-01-10 20:31:02,311 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) [2022-01-10 20:31:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2022-01-10 20:31:02,313 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 7 [2022-01-10 20:31:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:02,313 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2022-01-10 20:31:02,313 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) [2022-01-10 20:31:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2022-01-10 20:31:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 20:31:02,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:02,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:02,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:31:02,314 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)] === [2022-01-10 20:31:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:02,315 INFO L85 PathProgramCache]: Analyzing trace with hash -562339712, now seen corresponding path program 1 times [2022-01-10 20:31:02,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:02,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582484696] [2022-01-10 20:31:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:02,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:02,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:02,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582484696] [2022-01-10 20:31:02,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582484696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:31:02,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:31:02,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:31:02,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210515499] [2022-01-10 20:31:02,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:31:02,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:31:02,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:02,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:31:02,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:31:02,450 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) [2022-01-10 20:31:04,843 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 [] [2022-01-10 20:31:06,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:31:06,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:06,640 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2022-01-10 20:31:06,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 20:31:06,641 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 [2022-01-10 20:31:06,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:06,642 INFO L225 Difference]: With dead ends: 96 [2022-01-10 20:31:06,642 INFO L226 Difference]: Without dead ends: 92 [2022-01-10 20:31:06,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:31:06,643 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:31:06,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 86 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-01-10 20:31:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-01-10 20:31:06,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 64. [2022-01-10 20:31:06,656 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) [2022-01-10 20:31:06,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2022-01-10 20:31:06,657 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 7 [2022-01-10 20:31:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:06,657 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2022-01-10 20:31:06,657 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) [2022-01-10 20:31:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2022-01-10 20:31:06,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 20:31:06,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:06,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:06,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:31:06,658 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)] === [2022-01-10 20:31:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:06,658 INFO L85 PathProgramCache]: Analyzing trace with hash 757453253, now seen corresponding path program 1 times [2022-01-10 20:31:06,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:06,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775474982] [2022-01-10 20:31:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:06,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:06,674 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:06,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [791279668] [2022-01-10 20:31:06,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:06,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:06,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:06,678 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) [2022-01-10 20:31:06,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:31:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:06,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 20:31:06,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:06,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:31:06,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:06,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775474982] [2022-01-10 20:31:06,899 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:06,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791279668] [2022-01-10 20:31:06,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791279668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:31:06,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:31:06,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:31:06,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921056150] [2022-01-10 20:31:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:31:06,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:31:06,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:31:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:31:06,900 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) [2022-01-10 20:31:09,091 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 [] [2022-01-10 20:31:10,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:31:12,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:31:14,815 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 [] [2022-01-10 20:31:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:14,825 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2022-01-10 20:31:14,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 20:31:14,825 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 [2022-01-10 20:31:14,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:14,826 INFO L225 Difference]: With dead ends: 92 [2022-01-10 20:31:14,826 INFO L226 Difference]: Without dead ends: 90 [2022-01-10 20:31:14,826 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 [2022-01-10 20:31:14,827 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 7.9s IncrementalHoareTripleChecker+Time [2022-01-10 20:31:14,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 89 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-01-10 20:31:14,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-01-10 20:31:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 64. [2022-01-10 20:31:14,834 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) [2022-01-10 20:31:14,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2022-01-10 20:31:14,834 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 9 [2022-01-10 20:31:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:14,835 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2022-01-10 20:31:14,835 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) [2022-01-10 20:31:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2022-01-10 20:31:14,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 20:31:14,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:14,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:14,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 20:31:15,043 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 [2022-01-10 20:31:15,044 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)] === [2022-01-10 20:31:15,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:15,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2063140618, now seen corresponding path program 1 times [2022-01-10 20:31:15,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:15,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445368010] [2022-01-10 20:31:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:15,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:15,057 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:15,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856351862] [2022-01-10 20:31:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:15,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:15,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:15,058 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) [2022-01-10 20:31:15,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 20:31:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:15,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 20:31:15,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:15,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:31:15,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:15,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445368010] [2022-01-10 20:31:15,221 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:15,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856351862] [2022-01-10 20:31:15,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856351862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:31:15,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:31:15,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:31:15,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830786240] [2022-01-10 20:31:15,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:31:15,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:31:15,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:31:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:31:15,223 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) [2022-01-10 20:31:15,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:15,554 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-01-10 20:31:15,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 20:31:15,555 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 [2022-01-10 20:31:15,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:15,556 INFO L225 Difference]: With dead ends: 90 [2022-01-10 20:31:15,556 INFO L226 Difference]: Without dead ends: 86 [2022-01-10 20:31:15,556 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 [2022-01-10 20:31:15,557 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 32 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 20:31:15,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 92 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 20:31:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-01-10 20:31:15,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2022-01-10 20:31:15,563 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) [2022-01-10 20:31:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2022-01-10 20:31:15,564 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 11 [2022-01-10 20:31:15,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:15,564 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2022-01-10 20:31:15,564 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) [2022-01-10 20:31:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2022-01-10 20:31:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 20:31:15,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:15,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:15,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-10 20:31:15,775 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 [2022-01-10 20:31:15,777 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)] === [2022-01-10 20:31:15,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1596719025, now seen corresponding path program 1 times [2022-01-10 20:31:15,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:15,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51110182] [2022-01-10 20:31:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:15,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:15,788 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:15,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414207087] [2022-01-10 20:31:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:15,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:15,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:15,789 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) [2022-01-10 20:31:15,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 20:31:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:15,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 20:31:15,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:15,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:31:15,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:15,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51110182] [2022-01-10 20:31:15,927 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:15,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414207087] [2022-01-10 20:31:15,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414207087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:31:15,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:31:15,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:31:15,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874499235] [2022-01-10 20:31:15,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:31:15,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:31:15,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:15,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:31:15,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:31:15,929 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) [2022-01-10 20:31:17,951 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 [] [2022-01-10 20:31:18,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:18,229 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2022-01-10 20:31:18,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 20:31:18,230 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 [2022-01-10 20:31:18,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:18,230 INFO L225 Difference]: With dead ends: 86 [2022-01-10 20:31:18,230 INFO L226 Difference]: Without dead ends: 62 [2022-01-10 20:31:18,230 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 [2022-01-10 20:31:18,231 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 [2022-01-10 20:31:18,231 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] [2022-01-10 20:31:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-01-10 20:31:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-01-10 20:31:18,237 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) [2022-01-10 20:31:18,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2022-01-10 20:31:18,237 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 13 [2022-01-10 20:31:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:18,237 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2022-01-10 20:31:18,237 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) [2022-01-10 20:31:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2022-01-10 20:31:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 20:31:18,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:18,238 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:18,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 20:31:18,449 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 [2022-01-10 20:31:18,450 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)] === [2022-01-10 20:31:18,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:18,450 INFO L85 PathProgramCache]: Analyzing trace with hash 990421732, now seen corresponding path program 1 times [2022-01-10 20:31:18,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:18,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021775981] [2022-01-10 20:31:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:18,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:18,462 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:18,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685053714] [2022-01-10 20:31:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:18,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:18,470 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) [2022-01-10 20:31:18,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 20:31:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:18,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-10 20:31:18,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:18,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:31:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:19,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:19,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021775981] [2022-01-10 20:31:19,099 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:19,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685053714] [2022-01-10 20:31:19,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685053714] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:31:19,099 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 20:31:19,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 20:31:19,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158811126] [2022-01-10 20:31:19,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 20:31:19,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 20:31:19,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 20:31:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:31:19,101 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) [2022-01-10 20:31:21,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 20:31:22,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:22,357 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2022-01-10 20:31:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 20:31:22,358 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 [2022-01-10 20:31:22,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:22,359 INFO L225 Difference]: With dead ends: 104 [2022-01-10 20:31:22,359 INFO L226 Difference]: Without dead ends: 100 [2022-01-10 20:31:22,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:31:22,360 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 111 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 67 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-10 20:31:22,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 99 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-01-10 20:31:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-01-10 20:31:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 58. [2022-01-10 20:31:22,367 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) [2022-01-10 20:31:22,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2022-01-10 20:31:22,369 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 19 [2022-01-10 20:31:22,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:22,369 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2022-01-10 20:31:22,369 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) [2022-01-10 20:31:22,369 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2022-01-10 20:31:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 20:31:22,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:22,369 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:22,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 20:31:22,573 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 [2022-01-10 20:31:22,573 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)] === [2022-01-10 20:31:22,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:22,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1687418071, now seen corresponding path program 1 times [2022-01-10 20:31:22,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:22,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089015121] [2022-01-10 20:31:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:22,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:22,584 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:22,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108801474] [2022-01-10 20:31:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:22,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:22,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:22,585 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) [2022-01-10 20:31:22,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 20:31:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:22,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-10 20:31:22,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:23,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:31:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:27,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:27,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089015121] [2022-01-10 20:31:27,569 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:27,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108801474] [2022-01-10 20:31:27,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108801474] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:31:27,569 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 20:31:27,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 20:31:27,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057035580] [2022-01-10 20:31:27,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 20:31:27,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 20:31:27,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:27,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 20:31:27,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2022-01-10 20:31:27,570 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) [2022-01-10 20:31:31,451 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (let ((.cse0 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 3) 18446744073709551616))) (+ (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| .cse0) 18446744073709551616) .cse0 1)) 18446744073709551616)) (<= 1 |c_ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616) (mod (let ((.cse2 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 1) 18446744073709551616))) (let ((.cse1 (mod (* .cse2 3) 18446744073709551616))) (+ .cse1 (mod (* .cse1 .cse2) 18446744073709551616) 1))) 18446744073709551616))) is different from false [2022-01-10 20:31:40,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:31:42,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:31:48,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:31:50,946 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 [] [2022-01-10 20:31:51,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:51,009 INFO L93 Difference]: Finished difference Result 158 states and 161 transitions. [2022-01-10 20:31:51,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 20:31:51,010 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 [2022-01-10 20:31:51,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:51,011 INFO L225 Difference]: With dead ends: 158 [2022-01-10 20:31:51,011 INFO L226 Difference]: Without dead ends: 152 [2022-01-10 20:31:51,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=4, NotChecked=22, Total=182 [2022-01-10 20:31:51,012 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 101 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 75 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-01-10 20:31:51,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 155 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 119 Invalid, 4 Unknown, 2 Unchecked, 12.5s Time] [2022-01-10 20:31:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-01-10 20:31:51,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 96. [2022-01-10 20:31:51,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 95 states have internal predecessors, (106), 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) [2022-01-10 20:31:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2022-01-10 20:31:51,023 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 21 [2022-01-10 20:31:51,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:51,023 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2022-01-10 20:31:51,023 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) [2022-01-10 20:31:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2022-01-10 20:31:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 20:31:51,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:51,024 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:51,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-10 20:31:51,224 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 [2022-01-10 20:31:51,224 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)] === [2022-01-10 20:31:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1888909166, now seen corresponding path program 1 times [2022-01-10 20:31:51,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:51,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973696655] [2022-01-10 20:31:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:51,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:51,238 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:51,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311778015] [2022-01-10 20:31:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:51,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:51,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:51,242 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) [2022-01-10 20:31:51,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-10 20:31:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:51,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-10 20:31:51,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:54,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:31:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:54,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:54,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973696655] [2022-01-10 20:31:54,964 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:54,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311778015] [2022-01-10 20:31:54,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311778015] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:31:54,964 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 20:31:54,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 20:31:54,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156226158] [2022-01-10 20:31:54,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 20:31:54,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 20:31:54,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:54,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 20:31:54,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:31:54,965 INFO L87 Difference]: Start difference. First operand 96 states and 106 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) [2022-01-10 20:31:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:31:55,829 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2022-01-10 20:31:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 20:31:55,830 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 [2022-01-10 20:31:55,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:31:55,830 INFO L225 Difference]: With dead ends: 110 [2022-01-10 20:31:55,830 INFO L226 Difference]: Without dead ends: 108 [2022-01-10 20:31:55,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-10 20:31:55,831 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 36 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 20:31:55,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 147 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 20:31:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-01-10 20:31:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 96. [2022-01-10 20:31:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.206896551724138) internal successors, (105), 95 states have internal predecessors, (105), 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) [2022-01-10 20:31:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2022-01-10 20:31:55,849 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 23 [2022-01-10 20:31:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:31:55,849 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2022-01-10 20:31:55,849 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) [2022-01-10 20:31:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2022-01-10 20:31:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 20:31:55,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:31:55,850 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:31:55,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-10 20:31:56,055 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 [2022-01-10 20:31:56,056 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)] === [2022-01-10 20:31:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:31:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1529419853, now seen corresponding path program 1 times [2022-01-10 20:31:56,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:31:56,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971054589] [2022-01-10 20:31:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:56,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:31:56,065 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:31:56,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704180244] [2022-01-10 20:31:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:31:56,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:31:56,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:31:56,066 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) [2022-01-10 20:31:56,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-10 20:31:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:31:56,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-10 20:31:56,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:31:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:56,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:31:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:31:58,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:31:58,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971054589] [2022-01-10 20:31:58,113 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:31:58,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704180244] [2022-01-10 20:31:58,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704180244] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 20:31:58,113 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 20:31:58,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 20:31:58,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004928672] [2022-01-10 20:31:58,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 20:31:58,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 20:31:58,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:31:58,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 20:31:58,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:31:58,114 INFO L87 Difference]: Start difference. First operand 96 states and 105 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) [2022-01-10 20:32:00,340 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 [2022-01-10 20:32:02,682 WARN L838 $PredicateComparison]: unable to prove that (and (= (mod (let ((.cse0 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616)) (.cse1 (mod (+ 6 |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616))) (+ (mod (* 18446744073709551615 (mod (* 12 .cse0) 18446744073709551616)) 18446744073709551616) (mod (* .cse1 .cse0) 18446744073709551616) (mod (* 18446744073709551615 (mod (* (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) 18) 18446744073709551616)) 18446744073709551616) 18446744073709551610 (mod (* 2 .cse1) 18446744073709551616))) 18446744073709551616) 0) (= (mod (+ 18446744073709551610 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616) (mod (* 2 |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) 18446744073709551616) (mod (* (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 12) 18446744073709551616) 18446744073709551615) 18446744073709551616) (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 18) 18446744073709551616)) 18446744073709551616)) 18446744073709551616) 0)) is different from false [2022-01-10 20:32:05,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 20:32:08,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:32:08,888 INFO L93 Difference]: Finished difference Result 164 states and 168 transitions. [2022-01-10 20:32:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 20:32:08,888 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 25 [2022-01-10 20:32:08,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:32:08,889 INFO L225 Difference]: With dead ends: 164 [2022-01-10 20:32:08,889 INFO L226 Difference]: Without dead ends: 150 [2022-01-10 20:32:08,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=43, Invalid=73, Unknown=2, NotChecked=38, Total=156 [2022-01-10 20:32:08,889 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 73 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 71 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-10 20:32:08,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 202 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 121 Invalid, 1 Unknown, 8 Unchecked, 5.8s Time] [2022-01-10 20:32:08,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-01-10 20:32:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 110. [2022-01-10 20:32:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 101 states have (on average 1.198019801980198) internal successors, (121), 109 states have internal predecessors, (121), 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) [2022-01-10 20:32:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 121 transitions. [2022-01-10 20:32:08,901 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 121 transitions. Word has length 25 [2022-01-10 20:32:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:32:08,901 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 121 transitions. [2022-01-10 20:32:08,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-01-10 20:32:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 121 transitions. [2022-01-10 20:32:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 20:32:08,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:32:08,902 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:32:08,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-10 20:32:09,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:32:09,104 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 20:32:09,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:32:09,105 INFO L85 PathProgramCache]: Analyzing trace with hash 648905137, now seen corresponding path program 1 times [2022-01-10 20:32:09,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:32:09,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110157163] [2022-01-10 20:32:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:32:09,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:32:09,129 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:32:09,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512541795] [2022-01-10 20:32:09,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:32:09,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:32:09,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:32:09,130 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:32:09,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-10 20:32:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:32:09,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 31 conjunts are in the unsatisfiable core [2022-01-10 20:32:09,389 INFO L286 TraceCheckSpWp]: Computing forward predicates...