/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/prodbin-ll_valuebound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:57:36,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:57:36,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:57:36,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:57:36,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:57:36,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:57:36,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:57:36,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:57:36,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:57:36,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:57:36,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:57:36,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:57:36,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:57:36,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:57:36,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:57:36,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:57:36,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:57:36,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:57:36,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:57:36,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:57:36,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:57:36,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:57:36,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:57:36,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:57:36,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:57:36,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:57:36,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:57:36,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:57:36,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:57:36,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:57:36,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:57:36,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:57:36,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:57:36,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:57:36,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:57:36,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:57:36,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:57:36,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:57:36,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:57:36,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:57:36,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:57:36,816 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 20:57:36,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:57:36,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:57:36,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:57:36,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:57:36,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:57:36,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:57:36,859 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:57:36,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:57:36,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:57:36,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:57:36,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:57:36,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:57:36,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:57:36,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:57:36,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:57:36,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:57:36,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:57:36,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:57:36,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:57:36,862 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:57:36,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:57:36,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:57:36,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:57:36,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:57:36,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:57:36,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:57:37,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:57:37,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:57:37,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:57:37,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:57:37,078 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:57:37,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_valuebound20.c [2022-01-10 20:57:37,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1054e9bc6/6ff868b510294432af27bb574ad8859a/FLAGdd4f47f7c [2022-01-10 20:57:37,431 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:57:37,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_valuebound20.c [2022-01-10 20:57:37,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1054e9bc6/6ff868b510294432af27bb574ad8859a/FLAGdd4f47f7c [2022-01-10 20:57:37,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1054e9bc6/6ff868b510294432af27bb574ad8859a [2022-01-10 20:57:37,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:57:37,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:57:37,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:57:37,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:57:37,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:57:37,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:57:37" (1/1) ... [2022-01-10 20:57:37,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba07fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:37, skipping insertion in model container [2022-01-10 20:57:37,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:57:37" (1/1) ... [2022-01-10 20:57:37,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:57:37,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:57:38,004 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/prodbin-ll_valuebound20.c[537,550] [2022-01-10 20:57:38,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:57:38,025 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:57:38,035 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/prodbin-ll_valuebound20.c[537,550] [2022-01-10 20:57:38,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:57:38,057 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:57:38,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38 WrapperNode [2022-01-10 20:57:38,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:57:38,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:57:38,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:57:38,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:57:38,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,086 INFO L137 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 59 [2022-01-10 20:57:38,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:57:38,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:57:38,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:57:38,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:57:38,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:57:38,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:57:38,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:57:38,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:57:38,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:57:38,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:57:38,138 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 20:57:38,159 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 20:57:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:57:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:57:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:57:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:57:38,207 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:57:38,208 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:57:38,532 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:57:38,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:57:38,536 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:57:38,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:57:38 BoogieIcfgContainer [2022-01-10 20:57:38,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:57:38,537 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:57:38,537 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:57:38,538 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:57:38,540 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:57:38" (1/1) ... [2022-01-10 20:57:38,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:57:38 BasicIcfg [2022-01-10 20:57:38,615 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:57:38,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:57:38,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:57:38,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:57:38,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:57:37" (1/4) ... [2022-01-10 20:57:38,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4e378e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:57:38, skipping insertion in model container [2022-01-10 20:57:38,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:57:38" (2/4) ... [2022-01-10 20:57:38,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4e378e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:57:38, skipping insertion in model container [2022-01-10 20:57:38,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:57:38" (3/4) ... [2022-01-10 20:57:38,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4e378e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:57:38, skipping insertion in model container [2022-01-10 20:57:38,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:57:38" (4/4) ... [2022-01-10 20:57:38,620 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound20.cTransformedIcfg [2022-01-10 20:57:38,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:57:38,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 20:57:38,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:57:38,653 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 20:57:38,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 20:57:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 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 20:57:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 20:57:38,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:57:38,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:57:38,665 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:57:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:57:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1695820884, now seen corresponding path program 1 times [2022-01-10 20:57:38,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:57:38,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705198688] [2022-01-10 20:57:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:57:38,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:57:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:57:38,825 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 20:57:38,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:57:38,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705198688] [2022-01-10 20:57:38,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705198688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:57:38,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:57:38,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:57:38,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017903505] [2022-01-10 20:57:38,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:57:38,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:57:38,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:57:38,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:57:38,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:57:38,858 INFO L87 Difference]: Start difference. First operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 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 5.5) internal successors, (11), 2 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 20:57:38,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:57:38,872 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2022-01-10 20:57:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:57:38,875 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 20:57:38,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:57:38,880 INFO L225 Difference]: With dead ends: 45 [2022-01-10 20:57:38,880 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 20:57:38,882 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 20:57:38,885 INFO L933 BasicCegarLoop]: 25 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, 25 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 20:57:38,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:57:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 20:57:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 20:57:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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 20:57:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-01-10 20:57:38,916 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2022-01-10 20:57:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:57:38,916 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-01-10 20:57:38,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 20:57:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-01-10 20:57:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 20:57:38,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:57:38,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:57:38,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:57:38,920 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:57:38,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:57:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash -110710058, now seen corresponding path program 1 times [2022-01-10 20:57:38,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:57:38,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189191502] [2022-01-10 20:57:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:57:38,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:57:38,979 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:57:38,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382242899] [2022-01-10 20:57:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:57:38,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:57:38,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:57:38,981 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 20:57:38,983 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 20:57:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:57:39,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-10 20:57:39,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:57:39,792 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 20:57:39,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:57:39,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:57:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189191502] [2022-01-10 20:57:39,792 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:57:39,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382242899] [2022-01-10 20:57:39,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382242899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:57:39,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:57:39,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 20:57:39,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836454307] [2022-01-10 20:57:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:57:39,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 20:57:39,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:57:39,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 20:57:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:57:39,795 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 20:57:40,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:57:40,197 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-01-10 20:57:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 20:57:40,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 20:57:40,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:57:40,198 INFO L225 Difference]: With dead ends: 32 [2022-01-10 20:57:40,198 INFO L226 Difference]: Without dead ends: 26 [2022-01-10 20:57:40,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2022-01-10 20:57:40,200 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 79 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:57:40,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 25 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:57:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-10 20:57:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-01-10 20:57:40,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 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 20:57:40,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-01-10 20:57:40,204 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 11 [2022-01-10 20:57:40,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:57:40,205 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-01-10 20:57:40,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 20:57:40,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-01-10 20:57:40,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 20:57:40,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:57:40,205 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:57:40,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 20:57:40,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:57:40,411 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:57:40,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:57:40,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1532008981, now seen corresponding path program 1 times [2022-01-10 20:57:40,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:57:40,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961999076] [2022-01-10 20:57:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:57:40,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:57:40,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:57:40,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574835920] [2022-01-10 20:57:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:57:40,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:57:40,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:57:40,461 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 20:57:40,463 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 20:57:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:57:41,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-10 20:57:41,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:58:28,707 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 2147483648) 2)) (.cse2 (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 2147483648))) (.cse0 (* (mod |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 2147483648) 2))) (and (<= |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| .cse0) (= (mod (+ (* .cse1 18446744069414584320) |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|) (<= (+ (* (mod 1 2147483648) 2) |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (+ .cse2 1)) (let ((.cse4 (mod (+ 18446744073709551615 (* 18446744069414584320 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 2147483648) 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 18446744073709551616))) (let ((.cse3 (= (mod (div .cse4 9223372036854775808) 2) 0))) (or (not .cse3) (and (= |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (div .cse4 2)) .cse3)))) (= |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (mod (+ (* .cse1 18446744065119617024) (* |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 2)) 18446744073709551616)) (<= .cse2 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 20)) (= (mod |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 2) 1) (<= .cse0 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 20)))) is different from false