/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_BITWISE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:18:24,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:18:24,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:18:24,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 09:18:24,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 09:18:24,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 09:18:24,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 09:18:24,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 09:18:24,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 09:18:24,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 09:18:24,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 09:18:24,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 09:18:24,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:18:24,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:18:24,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:18:24,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:18:24,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:18:24,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:18:24,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:18:24,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:18:24,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:18:24,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:18:24,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:18:24,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:18:24,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 09:18:24,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 09:18:24,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 09:18:24,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 09:18:24,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 09:18:24,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 09:18:24,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 09:18:24,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 09:18:24,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 09:18:24,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 09:18:24,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 09:18:24,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 09:18:24,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 09:18:24,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 09:18:24,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:18:24,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:18:24,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:18:24,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:18:24,909 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:18:24,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:18:24,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:18:24,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:18:24,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:18:24,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:18:24,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:18:24,911 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:18:24,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:18:24,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:18:24,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:18:24,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:18:24,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:18:24,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:18:24,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:18:24,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:18:24,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:18:24,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:18:24,928 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:18:24,928 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:18:25,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:18:25,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:18:25,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:18:25,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:18:25,103 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:18:25,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound1.c [2022-01-10 09:18:25,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cef4365/b0135b27b2554734a26cce4ebc3dd607/FLAGffb362dc4 [2022-01-10 09:18:25,454 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:18:25,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound1.c [2022-01-10 09:18:25,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cef4365/b0135b27b2554734a26cce4ebc3dd607/FLAGffb362dc4 [2022-01-10 09:18:25,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cef4365/b0135b27b2554734a26cce4ebc3dd607 [2022-01-10 09:18:25,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:18:25,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:18:25,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:18:25,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:18:25,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:18:25,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:18:25" (1/1) ... [2022-01-10 09:18:25,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f9eb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:25, skipping insertion in model container [2022-01-10 09:18:25,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:18:25" (1/1) ... [2022-01-10 09:18:25,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:18:25,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:18:26,054 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/ps2-ll_unwindbound1.c[454,467] [2022-01-10 09:18:26,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:18:26,092 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:18:26,115 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/ps2-ll_unwindbound1.c[454,467] [2022-01-10 09:18:26,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:18:26,132 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:18:26,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26 WrapperNode [2022-01-10 09:18:26,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:18:26,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:18:26,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:18:26,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:18:26,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,178 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2022-01-10 09:18:26,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:18:26,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:18:26,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:18:26,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:18:26,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:18:26,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:18:26,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:18:26,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:18:26,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:18:26,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:18:26,240 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 09:18:26,247 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 09:18:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:18:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:18:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:18:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:18:26,320 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:18:26,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:18:26,516 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:18:26,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:18:26,520 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 09:18:26,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:18:26 BoogieIcfgContainer [2022-01-10 09:18:26,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:18:26,521 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:18:26,521 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:18:26,522 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:18:26,524 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:18:26" (1/1) ... [2022-01-10 09:18:26,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:18:26 BasicIcfg [2022-01-10 09:18:26,572 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:18:26,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:18:26,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:18:26,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:18:26,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:18:25" (1/4) ... [2022-01-10 09:18:26,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373d1294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:18:26, skipping insertion in model container [2022-01-10 09:18:26,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:18:26" (2/4) ... [2022-01-10 09:18:26,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373d1294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:18:26, skipping insertion in model container [2022-01-10 09:18:26,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:18:26" (3/4) ... [2022-01-10 09:18:26,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373d1294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:18:26, skipping insertion in model container [2022-01-10 09:18:26,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:18:26" (4/4) ... [2022-01-10 09:18:26,577 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound1.cTransformedIcfg [2022-01-10 09:18:26,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:18:26,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 09:18:26,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:18:26,612 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 09:18:26,612 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 09:18:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 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 09:18:26,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 09:18:26,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:18:26,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 09:18:26,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:18:26,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:18:26,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2016054008, now seen corresponding path program 1 times [2022-01-10 09:18:26,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:18:26,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911395952] [2022-01-10 09:18:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:26,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:18:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:18:26,717 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 09:18:26,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:18:26,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911395952] [2022-01-10 09:18:26,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911395952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:18:26,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:18:26,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:18:26,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928524381] [2022-01-10 09:18:26,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:18:26,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:18:26,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:18:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:18:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:18:26,740 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 09:18:26,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:18:26,749 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-01-10 09:18:26,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:18:26,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-01-10 09:18:26,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:18:26,754 INFO L225 Difference]: With dead ends: 32 [2022-01-10 09:18:26,754 INFO L226 Difference]: Without dead ends: 13 [2022-01-10 09:18:26,756 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 09:18:26,758 INFO L933 BasicCegarLoop]: 18 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, 18 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 09:18:26,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:18:26,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-10 09:18:26,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-10 09:18:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 09:18:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-01-10 09:18:26,777 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2022-01-10 09:18:26,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:18:26,777 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-01-10 09:18:26,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 09:18:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-01-10 09:18:26,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 09:18:26,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:18:26,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 09:18:26,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 09:18:26,778 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:18:26,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:18:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2016022230, now seen corresponding path program 1 times [2022-01-10 09:18:26,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:18:26,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518759762] [2022-01-10 09:18:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:26,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:18:26,793 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:18:26,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350343702] [2022-01-10 09:18:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:26,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:18:26,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:18:26,795 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 09:18:26,796 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 09:18:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:18:26,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 09:18:26,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:18:27,031 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 09:18:27,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:18:27,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:18:27,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518759762] [2022-01-10 09:18:27,031 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:18:27,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350343702] [2022-01-10 09:18:27,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350343702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:18:27,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:18:27,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 09:18:27,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707428502] [2022-01-10 09:18:27,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:18:27,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 09:18:27,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:18:27,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 09:18:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 09:18:27,034 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 09:18:27,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:18:27,640 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-01-10 09:18:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 09:18:27,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-01-10 09:18:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:18:27,641 INFO L225 Difference]: With dead ends: 25 [2022-01-10 09:18:27,641 INFO L226 Difference]: Without dead ends: 18 [2022-01-10 09:18:27,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 09:18:27,642 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 09:18:27,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 09:18:27,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-01-10 09:18:27,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-01-10 09:18:27,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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 09:18:27,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-01-10 09:18:27,646 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2022-01-10 09:18:27,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:18:27,646 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-01-10 09:18:27,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 09:18:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-01-10 09:18:27,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 09:18:27,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:18:27,646 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:18:27,682 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 09:18:27,847 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 09:18:27,847 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:18:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:18:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash -655508129, now seen corresponding path program 1 times [2022-01-10 09:18:27,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:18:27,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411275441] [2022-01-10 09:18:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:27,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:18:27,865 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:18:27,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493059856] [2022-01-10 09:18:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:27,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:18:27,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:18:27,877 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 09:18:27,878 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 09:18:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:18:27,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 09:18:27,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:18:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:18:28,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:18:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:18:28,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:18:28,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411275441] [2022-01-10 09:18:28,317 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:18:28,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493059856] [2022-01-10 09:18:28,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493059856] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:18:28,318 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 09:18:28,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-01-10 09:18:28,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944497959] [2022-01-10 09:18:28,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 09:18:28,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 09:18:28,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:18:28,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 09:18:28,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 09:18:28,319 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 09:18:28,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:18:28,416 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-01-10 09:18:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 09:18:28,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 09:18:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:18:28,417 INFO L225 Difference]: With dead ends: 24 [2022-01-10 09:18:28,417 INFO L226 Difference]: Without dead ends: 13 [2022-01-10 09:18:28,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 09:18:28,418 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:18:28,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 35 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:18:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-10 09:18:28,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-10 09:18:28,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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 09:18:28,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2022-01-10 09:18:28,420 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2022-01-10 09:18:28,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:18:28,421 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2022-01-10 09:18:28,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 09:18:28,421 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2022-01-10 09:18:28,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 09:18:28,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:18:28,421 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:18:28,425 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 09:18:28,621 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,SelfDestructingSolverStorable2 [2022-01-10 09:18:28,622 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:18:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:18:28,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1154049726, now seen corresponding path program 1 times [2022-01-10 09:18:28,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:18:28,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626060254] [2022-01-10 09:18:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:28,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:18:28,632 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:18:28,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438060558] [2022-01-10 09:18:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:18:28,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:18:28,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:18:28,655 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 09:18:28,656 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 09:18:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:18:28,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 09:18:28,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:18:29,117 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 09:18:29,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:18:41,301 WARN L860 $PredicateComparison]: unable to prove that (= (mod (let ((.cse0 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) 18446744073709551616))) (+ (mod (* .cse0 .cse0) 18446744073709551616) (mod (* 18446744073709551615 (mod (* 2 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| .cse0) 18446744073709551616)) 18446744073709551616)) 18446744073709551616) .cse0)) 18446744073709551616) 0) is different from true [2022-01-10 09:18:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-01-10 09:18:41,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:18:41,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626060254] [2022-01-10 09:18:41,418 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:18:41,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438060558] [2022-01-10 09:18:41,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438060558] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:18:41,419 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 09:18:41,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 09:18:41,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119383429] [2022-01-10 09:18:41,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 09:18:41,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 09:18:41,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:18:41,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 09:18:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2022-01-10 09:18:41,421 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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 09:18:43,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:18:43,487 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-01-10 09:18:43,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 09:18:43,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) Word has length 12 [2022-01-10 09:18:43,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:18:43,488 INFO L225 Difference]: With dead ends: 13 [2022-01-10 09:18:43,488 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 09:18:43,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=23, Invalid=36, Unknown=1, NotChecked=12, Total=72 [2022-01-10 09:18:43,489 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:18:43,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-01-10 09:18:43,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 09:18:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 09:18:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 09:18:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 09:18:43,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-01-10 09:18:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:18:43,490 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 09:18:43,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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 09:18:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 09:18:43,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 09:18:43,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 09:18:43,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 09:18:43,503 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 09:18:43,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:18:43,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 09:18:43,778 INFO L854 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (let ((.cse0 (<= 0 ~counter~0Int)) (.cse1 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse3 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|))) (or (let ((.cse2 (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|))) (and .cse0 .cse1 (< ~counter~0Int 4294967296) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 18446744073709551616) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= (div (+ .cse2 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (- 18446744073709551616)) (div (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) 18446744073709551616)) (<= (div (+ (- 1) ~counter~0Int) (- 4294967296)) (div (+ (* (- 1) ~counter~0Int) 1) 4294967296)) (<= (div (+ (- 1) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (- 18446744073709551616)) (div (+ .cse2 1) 18446744073709551616)) (< |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 18446744073709551616) .cse3)) (and .cse0 .cse1 (= |ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int| 0) (<= ~counter~0Int 0) .cse3 (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0)))) [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point L27-4(lines 27 36) no Hoare annotation was computed. [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 27 36) no Hoare annotation was computed. [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-01-10 09:18:43,778 INFO L858 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2022-01-10 09:18:43,779 INFO L861 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2022-01-10 09:18:43,779 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-01-10 09:18:43,779 INFO L854 garLoopResultBuilder]: At program point L10-2(lines 9 15) the Hoare annotation is: (and (<= 0 ~counter~0Int) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (< ~counter~0Int 4294967296) (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int| 0) (<= (div (+ (- 1) ~counter~0Int) (- 4294967296)) (div (+ (* (- 1) ~counter~0Int) 1) 4294967296)) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0)) [2022-01-10 09:18:43,779 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-01-10 09:18:43,779 INFO L861 garLoopResultBuilder]: At program point L39(lines 18 40) the Hoare annotation is: true [2022-01-10 09:18:43,779 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-01-10 09:18:43,779 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2022-01-10 09:18:43,779 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 09:18:43,779 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 09:18:43,781 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-10 09:18:43,782 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 09:18:43,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:18:43 BasicIcfg [2022-01-10 09:18:43,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 09:18:43,830 INFO L158 Benchmark]: Toolchain (without parser) took 17937.88ms. Allocated memory was 179.3MB in the beginning and 226.5MB in the end (delta: 47.2MB). Free memory was 129.3MB in the beginning and 135.3MB in the end (delta: -6.0MB). Peak memory consumption was 40.8MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,830 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 179.3MB. Free memory was 145.4MB in the beginning and 145.3MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 09:18:43,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.33ms. Allocated memory is still 179.3MB. Free memory was 129.1MB in the beginning and 155.0MB in the end (delta: -25.8MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.04ms. Allocated memory is still 179.3MB. Free memory was 155.0MB in the beginning and 153.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,831 INFO L158 Benchmark]: Boogie Preprocessor took 25.13ms. Allocated memory is still 179.3MB. Free memory was 153.3MB in the beginning and 152.4MB in the end (delta: 969.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,831 INFO L158 Benchmark]: RCFGBuilder took 316.33ms. Allocated memory is still 179.3MB. Free memory was 152.1MB in the beginning and 143.2MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,831 INFO L158 Benchmark]: IcfgTransformer took 50.28ms. Allocated memory is still 179.3MB. Free memory was 143.2MB in the beginning and 139.3MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,832 INFO L158 Benchmark]: TraceAbstraction took 17256.46ms. Allocated memory was 179.3MB in the beginning and 226.5MB in the end (delta: 47.2MB). Free memory was 138.7MB in the beginning and 135.3MB in the end (delta: 3.4MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2022-01-10 09:18:43,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 179.3MB. Free memory was 145.4MB in the beginning and 145.3MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.33ms. Allocated memory is still 179.3MB. Free memory was 129.1MB in the beginning and 155.0MB in the end (delta: -25.8MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.04ms. Allocated memory is still 179.3MB. Free memory was 155.0MB in the beginning and 153.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.13ms. Allocated memory is still 179.3MB. Free memory was 153.3MB in the beginning and 152.4MB in the end (delta: 969.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 316.33ms. Allocated memory is still 179.3MB. Free memory was 152.1MB in the beginning and 143.2MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 50.28ms. Allocated memory is still 179.3MB. Free memory was 143.2MB in the beginning and 139.3MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 17256.46ms. Allocated memory was 179.3MB in the beginning and 226.5MB in the end (delta: 47.2MB). Free memory was 138.7MB in the beginning and 135.3MB in the end (delta: 3.4MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 5 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 46 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 126 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 812 SizeOfPredicates, 8 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (((((((~bvule32(1bv32, cond) && ~bvsle33((if !(0bv33 == ~bvurem33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) then (if ~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter))[32:32] == 1bv1 then ~bvadd16(~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33), 1bv33) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)), ~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(counter))), 1bv65)[64:32])) && ~bvule32(0bv32, counter)) && ~bvule64(x, 0bv64)) && ~bvule64(0bv64, x)) && ~bvule64(0bv64, y)) && ~bvult64(~zero_extendFrom32To33(counter), 4294967296bv33)) && ~bvule64(y, 0bv64)) && c == 0bv64 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((~bvule32(0bv32, counter) && ~bvule32(counter, 0bv32)) && ~bvule64(x, 0bv64)) && ~bvule64(0bv64, x)) && ~bvule64(0bv64, y)) && ~bvule64(y, 0bv64)) && c == 0bv64) || (((((((((~bvule32(1bv32, cond) && ~bvsle33((if !(0bv33 == ~bvurem33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) then (if ~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter))[32:32] == 1bv1 then ~bvadd16(~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33), 1bv33) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)) else ~bvsdiv33(~bvadd16(8589934591bv33, ~zero_extendFrom32To33(counter)), 4294967296bv33)), ~bvadd16(~sign_extendFrom8To32(~bvmul64(18446744073709551615bv64, ~zero_extendFrom32To64(counter))), 1bv65)[64:32])) && ~bvule32(0bv32, counter)) && ~bvult64(~zero_extendFrom64To65(y), 18446744073709551616bv65)) && ~bvule64(0bv64, x)) && ~bvsle65((if !(~bvurem65(~bvadd16(36893488147419103231bv65, ~zero_extendFrom64To65(y)), 18446744073709551616bv65) == 0bv65) then (if ~bvadd16(36893488147419103231bv65, ~zero_extendFrom64To65(y))[64:64] == 1bv1 then ~bvadd16(1bv65, ~bvsdiv65(~bvadd16(36893488147419103231bv65, ~zero_extendFrom64To65(y)), 18446744073709551616bv65)) else ~bvsdiv65(~bvadd16(36893488147419103231bv65, ~zero_extendFrom64To65(y)), 18446744073709551616bv65)) else ~bvsdiv65(~bvadd16(36893488147419103231bv65, ~zero_extendFrom64To65(y)), 18446744073709551616bv65)), ~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom64To128(y), 340282366920938463463374607431768211455bv128)), 1bv129)[128:64])) && ~bvult64(~zero_extendFrom64To65(x), 18446744073709551616bv65)) && ~bvule64(0bv64, y)) && ~bvsle129((if !(0bv129 == ~bvurem129(~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom64To128(y), 340282366920938463463374607431768211455bv128)), ~zero_extendFrom64To129(x)), 680564733841876926908302470789826871296bv129)) then (if ~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom64To128(y), 340282366920938463463374607431768211455bv128)), ~zero_extendFrom64To129(x))[128:128] == 1bv1 then ~bvadd16(~bvsdiv129(~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom64To128(y), 340282366920938463463374607431768211455bv128)), ~zero_extendFrom64To129(x)), 680564733841876926908302470789826871296bv129), 1bv129) else ~bvsdiv129(~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom64To128(y), 340282366920938463463374607431768211455bv128)), ~zero_extendFrom64To129(x)), 680564733841876926908302470789826871296bv129)) else ~bvsdiv129(~bvadd16(~sign_extendFrom8To32(~bvmul64(~zero_extendFrom64To128(y), 340282366920938463463374607431768211455bv128)), ~zero_extendFrom64To129(x)), 680564733841876926908302470789826871296bv129)), ~sign_extendFrom8To32(~bvadd16(~zero_extendFrom64To129(y), ~sign_extendFrom8To32(~bvmul64(340282366920938463463374607431768211455bv128, ~zero_extendFrom64To128(x))))[128:64]))) && ~bvult64(~zero_extendFrom32To33(counter), 4294967296bv33)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 09:18:43,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...