/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:40:20,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:40:20,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:40:20,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 15:40:20,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 15:40:20,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 15:40:20,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 15:40:20,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 15:40:20,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 15:40:20,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 15:40:20,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 15:40:20,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 15:40:20,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 15:40:20,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 15:40:20,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 15:40:20,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 15:40:20,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 15:40:20,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 15:40:20,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 15:40:20,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 15:40:20,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 15:40:20,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 15:40:20,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 15:40:20,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 15:40:20,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-01 15:40:20,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-01 15:40:20,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-01 15:40:20,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-01 15:40:20,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-01 15:40:20,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-01 15:40:20,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 15:40:20,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 15:40:20,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 15:40:20,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 15:40:20,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 15:40:20,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 15:40:20,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 15:40:20,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 15:40:20,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:40:20,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:40:20,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:40:20,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 15:40:20,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:40:20,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:40:20,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:40:20,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:40:20,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:40:20,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:40:20,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:40:20,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:40:20,891 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:40:20,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:40:20,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:40:20,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:40:20,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:40:20,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:40:20,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:40:20,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:40:20,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:40:20,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:40:20,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:40:20,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:40:20,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:40:20,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:40:20,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:40:20,896 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:40:20,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:40:20,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:40:21,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:40:21,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:40:21,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:40:21,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:40:21,136 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:40:21,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2022-03-01 15:40:21,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/903d7ae73/4a5a5f6fcf104d36918b65d35fd0cc38/FLAGdd85f88bd [2022-03-01 15:40:21,616 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:40:21,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2022-03-01 15:40:21,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/903d7ae73/4a5a5f6fcf104d36918b65d35fd0cc38/FLAGdd85f88bd [2022-03-01 15:40:22,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/903d7ae73/4a5a5f6fcf104d36918b65d35fd0cc38 [2022-03-01 15:40:22,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:40:22,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:40:22,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:40:22,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:40:22,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:40:22,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1442f419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22, skipping insertion in model container [2022-03-01 15:40:22,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:40:22,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:40:22,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-03-01 15:40:22,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:40:22,269 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:40:22,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-03-01 15:40:22,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:40:22,304 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:40:22,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22 WrapperNode [2022-03-01 15:40:22,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:40:22,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:40:22,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:40:22,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:40:22,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,338 INFO L137 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2022-03-01 15:40:22,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:40:22,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:40:22,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:40:22,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:40:22,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:40:22,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:40:22,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:40:22,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:40:22,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (1/1) ... [2022-03-01 15:40:22,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:40:22,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:22,421 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) [2022-03-01 15:40:22,433 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 [2022-03-01 15:40:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:40:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:40:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:40:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:40:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:40:22,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:40:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:40:22,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:40:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 15:40:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 15:40:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:40:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 15:40:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 15:40:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 15:40:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:40:22,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:40:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:40:22,471 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:40:22,571 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:40:22,573 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:40:22,859 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:40:22,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:40:22,947 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-01 15:40:22,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:40:22 BoogieIcfgContainer [2022-03-01 15:40:22,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:40:22,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:40:22,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:40:22,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:40:22,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:40:22" (1/3) ... [2022-03-01 15:40:22,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1169fb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:40:22, skipping insertion in model container [2022-03-01 15:40:22,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:40:22" (2/3) ... [2022-03-01 15:40:22,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1169fb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:40:22, skipping insertion in model container [2022-03-01 15:40:22,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:40:22" (3/3) ... [2022-03-01 15:40:22,959 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2022-03-01 15:40:22,965 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:40:22,965 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:40:22,966 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:40:22,966 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:40:23,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,031 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,031 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,031 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,031 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,032 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,032 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,033 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,033 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,033 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,033 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,034 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,036 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,038 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,039 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,040 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,041 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,041 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,041 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,043 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,045 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,046 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,046 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,046 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,047 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,047 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,049 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,049 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,049 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,049 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,054 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,055 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,055 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,056 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,057 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,059 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,059 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:40:23,068 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-01 15:40:23,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:40:23,130 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 15:40:23,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 15:40:23,144 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 174 places, 176 transitions, 376 flow [2022-03-01 15:40:23,334 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2978 states, 2977 states have (on average 3.3879744709439032) internal successors, (10086), 2977 states have internal predecessors, (10086), 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) [2022-03-01 15:40:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 2978 states, 2977 states have (on average 3.3879744709439032) internal successors, (10086), 2977 states have internal predecessors, (10086), 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) [2022-03-01 15:40:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-01 15:40:23,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:23,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:23,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:23,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:23,391 INFO L85 PathProgramCache]: Analyzing trace with hash -320260898, now seen corresponding path program 1 times [2022-03-01 15:40:23,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:23,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798311466] [2022-03-01 15:40:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:23,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:23,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:23,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798311466] [2022-03-01 15:40:23,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798311466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:23,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:23,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 15:40:23,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693491251] [2022-03-01 15:40:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:23,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 15:40:23,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 15:40:23,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:40:23,678 INFO L87 Difference]: Start difference. First operand has 2978 states, 2977 states have (on average 3.3879744709439032) internal successors, (10086), 2977 states have internal predecessors, (10086), 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 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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) [2022-03-01 15:40:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:23,763 INFO L93 Difference]: Finished difference Result 2978 states and 9578 transitions. [2022-03-01 15:40:23,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 15:40:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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 129 [2022-03-01 15:40:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:23,806 INFO L225 Difference]: With dead ends: 2978 [2022-03-01 15:40:23,806 INFO L226 Difference]: Without dead ends: 2973 [2022-03-01 15:40:23,807 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 [2022-03-01 15:40:23,811 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:23,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:40:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2022-03-01 15:40:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2973. [2022-03-01 15:40:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2973 states, 2972 states have (on average 3.221063257065949) internal successors, (9573), 2972 states have internal predecessors, (9573), 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) [2022-03-01 15:40:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 9573 transitions. [2022-03-01 15:40:23,995 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 9573 transitions. Word has length 129 [2022-03-01 15:40:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:23,996 INFO L470 AbstractCegarLoop]: Abstraction has 2973 states and 9573 transitions. [2022-03-01 15:40:23,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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) [2022-03-01 15:40:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 9573 transitions. [2022-03-01 15:40:24,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-01 15:40:24,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:24,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:24,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:40:24,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1837938339, now seen corresponding path program 1 times [2022-03-01 15:40:24,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:24,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923751646] [2022-03-01 15:40:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:24,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:24,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923751646] [2022-03-01 15:40:24,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923751646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:24,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:24,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 15:40:24,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635744731] [2022-03-01 15:40:24,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:24,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 15:40:24,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:24,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 15:40:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:40:24,296 INFO L87 Difference]: Start difference. First operand 2973 states and 9573 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2022-03-01 15:40:24,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:24,412 INFO L93 Difference]: Finished difference Result 2978 states and 9577 transitions. [2022-03-01 15:40:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 15:40:24,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 129 [2022-03-01 15:40:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:24,430 INFO L225 Difference]: With dead ends: 2978 [2022-03-01 15:40:24,431 INFO L226 Difference]: Without dead ends: 2973 [2022-03-01 15:40:24,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:40:24,433 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 4 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:24,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 521 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:40:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2022-03-01 15:40:24,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2973. [2022-03-01 15:40:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2973 states, 2972 states have (on average 3.220726783310902) internal successors, (9572), 2972 states have internal predecessors, (9572), 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) [2022-03-01 15:40:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 9572 transitions. [2022-03-01 15:40:24,537 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 9572 transitions. Word has length 129 [2022-03-01 15:40:24,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:24,539 INFO L470 AbstractCegarLoop]: Abstraction has 2973 states and 9572 transitions. [2022-03-01 15:40:24,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2022-03-01 15:40:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 9572 transitions. [2022-03-01 15:40:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-01 15:40:24,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:24,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:24,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:40:24,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:24,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:24,551 INFO L85 PathProgramCache]: Analyzing trace with hash -648684770, now seen corresponding path program 1 times [2022-03-01 15:40:24,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:24,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778232762] [2022-03-01 15:40:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:24,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:24,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:24,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778232762] [2022-03-01 15:40:24,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778232762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:24,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:24,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:40:24,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56680083] [2022-03-01 15:40:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:24,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:40:24,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:40:24,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:40:24,783 INFO L87 Difference]: Start difference. First operand 2973 states and 9572 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2022-03-01 15:40:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:24,892 INFO L93 Difference]: Finished difference Result 3965 states and 12876 transitions. [2022-03-01 15:40:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 15:40:24,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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 131 [2022-03-01 15:40:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:24,918 INFO L225 Difference]: With dead ends: 3965 [2022-03-01 15:40:24,918 INFO L226 Difference]: Without dead ends: 3965 [2022-03-01 15:40:24,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:40:24,924 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 201 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:24,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 338 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:40:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2022-03-01 15:40:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3221. [2022-03-01 15:40:25,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3220 states have (on average 3.229192546583851) internal successors, (10398), 3220 states have internal predecessors, (10398), 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) [2022-03-01 15:40:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 10398 transitions. [2022-03-01 15:40:25,084 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 10398 transitions. Word has length 131 [2022-03-01 15:40:25,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:25,085 INFO L470 AbstractCegarLoop]: Abstraction has 3221 states and 10398 transitions. [2022-03-01 15:40:25,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2022-03-01 15:40:25,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 10398 transitions. [2022-03-01 15:40:25,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-01 15:40:25,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:25,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:25,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:40:25,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:25,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1465355068, now seen corresponding path program 1 times [2022-03-01 15:40:25,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:25,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924855179] [2022-03-01 15:40:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:25,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:25,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:25,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924855179] [2022-03-01 15:40:25,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924855179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:25,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:25,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:40:25,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056623278] [2022-03-01 15:40:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:25,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:40:25,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:40:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:40:25,250 INFO L87 Difference]: Start difference. First operand 3221 states and 10398 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2022-03-01 15:40:25,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:25,424 INFO L93 Difference]: Finished difference Result 4240 states and 13482 transitions. [2022-03-01 15:40:25,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 15:40:25,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 136 [2022-03-01 15:40:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:25,443 INFO L225 Difference]: With dead ends: 4240 [2022-03-01 15:40:25,444 INFO L226 Difference]: Without dead ends: 3227 [2022-03-01 15:40:25,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:40:25,451 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 380 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:25,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 517 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:40:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2022-03-01 15:40:25,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3222. [2022-03-01 15:40:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3221 states have (on average 3.228500465693884) internal successors, (10399), 3221 states have internal predecessors, (10399), 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) [2022-03-01 15:40:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 10399 transitions. [2022-03-01 15:40:25,541 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 10399 transitions. Word has length 136 [2022-03-01 15:40:25,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:25,543 INFO L470 AbstractCegarLoop]: Abstraction has 3222 states and 10399 transitions. [2022-03-01 15:40:25,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2022-03-01 15:40:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 10399 transitions. [2022-03-01 15:40:25,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-01 15:40:25,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:25,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:25,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:40:25,554 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1591916463, now seen corresponding path program 1 times [2022-03-01 15:40:25,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:25,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988829284] [2022-03-01 15:40:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:25,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:25,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:25,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988829284] [2022-03-01 15:40:25,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988829284] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:25,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077908706] [2022-03-01 15:40:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:25,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:25,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:25,708 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) [2022-03-01 15:40:25,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 15:40:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:25,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 15:40:25,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:26,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:40:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:26,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077908706] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:26,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 15:40:26,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-01 15:40:26,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440413525] [2022-03-01 15:40:26,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:26,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:40:26,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:40:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-01 15:40:26,509 INFO L87 Difference]: Start difference. First operand 3222 states and 10399 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2022-03-01 15:40:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:26,644 INFO L93 Difference]: Finished difference Result 3498 states and 11320 transitions. [2022-03-01 15:40:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:40:26,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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 143 [2022-03-01 15:40:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:26,663 INFO L225 Difference]: With dead ends: 3498 [2022-03-01 15:40:26,663 INFO L226 Difference]: Without dead ends: 3498 [2022-03-01 15:40:26,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-01 15:40:26,664 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 302 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:26,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 410 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:40:26,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2022-03-01 15:40:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3498. [2022-03-01 15:40:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3497 states have (on average 3.2370603374320845) internal successors, (11320), 3497 states have internal predecessors, (11320), 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) [2022-03-01 15:40:26,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 11320 transitions. [2022-03-01 15:40:26,768 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 11320 transitions. Word has length 143 [2022-03-01 15:40:26,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:26,768 INFO L470 AbstractCegarLoop]: Abstraction has 3498 states and 11320 transitions. [2022-03-01 15:40:26,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2022-03-01 15:40:26,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 11320 transitions. [2022-03-01 15:40:26,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-01 15:40:26,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:26,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:26,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-01 15:40:26,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:26,996 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1800374473, now seen corresponding path program 1 times [2022-03-01 15:40:26,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:26,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686465562] [2022-03-01 15:40:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:26,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:27,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:27,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686465562] [2022-03-01 15:40:27,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686465562] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:27,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476099364] [2022-03-01 15:40:27,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:27,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:27,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:27,303 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) [2022-03-01 15:40:27,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 15:40:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:27,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-01 15:40:27,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:27,816 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-01 15:40:28,087 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 15:40:28,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 15:40:28,283 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-01 15:40:28,400 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-01 15:40:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:28,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:40:28,763 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int))) (<= c_~min~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_124) c_~A~0.base) c_~A~0.offset))) is different from false [2022-03-01 15:40:29,071 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int))) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_124) c_~A~0.base) c_~A~0.offset))) is different from false [2022-03-01 15:40:29,083 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int)) (v_ArrVal_123 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_123))) (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_124) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-03-01 15:40:29,168 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int)) (v_ArrVal_123 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_123))) (<= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_124) |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|)))) is different from false [2022-03-01 15:40:29,185 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int)) (v_ArrVal_123 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_123))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_124) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) is different from false [2022-03-01 15:40:29,193 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int)) (v_ArrVal_123 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_123))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_124) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) is different from false [2022-03-01 15:40:29,227 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 15:40:29,228 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 33 [2022-03-01 15:40:29,232 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 214 [2022-03-01 15:40:29,240 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 66 [2022-03-01 15:40:29,243 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2022-03-01 15:40:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-03-01 15:40:29,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476099364] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:40:29,391 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:40:29,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 20] total 43 [2022-03-01 15:40:29,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091469955] [2022-03-01 15:40:29,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:40:29,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-01 15:40:29,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-01 15:40:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1187, Unknown=14, NotChecked=450, Total=1806 [2022-03-01 15:40:29,394 INFO L87 Difference]: Start difference. First operand 3498 states and 11320 transitions. Second operand has 43 states, 43 states have (on average 8.604651162790697) internal successors, (370), 43 states have internal predecessors, (370), 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) [2022-03-01 15:40:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:31,669 INFO L93 Difference]: Finished difference Result 20225 states and 66481 transitions. [2022-03-01 15:40:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:40:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 8.604651162790697) internal successors, (370), 43 states have internal predecessors, (370), 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 148 [2022-03-01 15:40:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:31,811 INFO L225 Difference]: With dead ends: 20225 [2022-03-01 15:40:31,811 INFO L226 Difference]: Without dead ends: 11370 [2022-03-01 15:40:31,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 274 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=793, Invalid=4182, Unknown=19, NotChecked=858, Total=5852 [2022-03-01 15:40:31,815 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 2044 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2085 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:31,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 4457 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1205 Invalid, 0 Unknown, 2085 Unchecked, 0.7s Time] [2022-03-01 15:40:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2022-03-01 15:40:32,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 4076. [2022-03-01 15:40:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 4075 states have (on average 3.179877300613497) internal successors, (12958), 4075 states have internal predecessors, (12958), 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) [2022-03-01 15:40:32,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 12958 transitions. [2022-03-01 15:40:32,070 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 12958 transitions. Word has length 148 [2022-03-01 15:40:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:32,070 INFO L470 AbstractCegarLoop]: Abstraction has 4076 states and 12958 transitions. [2022-03-01 15:40:32,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.604651162790697) internal successors, (370), 43 states have internal predecessors, (370), 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) [2022-03-01 15:40:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 12958 transitions. [2022-03-01 15:40:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-01 15:40:32,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:32,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:32,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-01 15:40:32,299 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,SelfDestructingSolverStorable5 [2022-03-01 15:40:32,300 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1980197353, now seen corresponding path program 2 times [2022-03-01 15:40:32,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:32,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712897973] [2022-03-01 15:40:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:32,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:32,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:32,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712897973] [2022-03-01 15:40:32,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712897973] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:32,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083301769] [2022-03-01 15:40:32,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 15:40:32,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:32,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:32,758 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) [2022-03-01 15:40:32,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 15:40:32,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 15:40:32,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:40:32,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-01 15:40:32,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:33,399 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-01 15:40:33,713 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 15:40:33,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 15:40:33,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-01 15:40:34,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 15:40:34,020 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-01 15:40:34,148 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-01 15:40:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:34,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:40:34,564 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_161 (Array Int Int))) (<= c_~min~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) c_~A~0.base) c_~A~0.offset))) is different from false [2022-03-01 15:40:34,586 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_161 (Array Int Int))) (<= c_~min~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_160) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) c_~A~0.base) c_~A~0.offset))) is different from false [2022-03-01 15:40:34,843 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_161 (Array Int Int))) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_160) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) c_~A~0.base) c_~A~0.offset))) is different from false [2022-03-01 15:40:34,853 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_161 (Array Int Int)) (v_ArrVal_159 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_159))) (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_160) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-03-01 15:40:34,918 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_161 (Array Int Int)) (v_ArrVal_159 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_159))) (<= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_160) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|)))) is different from false [2022-03-01 15:40:34,928 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_161 (Array Int Int)) (v_ArrVal_159 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_159))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_160) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) is different from false [2022-03-01 15:40:34,935 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_161 (Array Int Int)) (v_ArrVal_159 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_159))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_160) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_161) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) is different from false [2022-03-01 15:40:34,960 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 15:40:34,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 36 [2022-03-01 15:40:34,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 534 treesize of output 470 [2022-03-01 15:40:34,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 452 treesize of output 420 [2022-03-01 15:40:35,000 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 420 treesize of output 404 [2022-03-01 15:40:35,007 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 404 treesize of output 372 [2022-03-01 15:40:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-03-01 15:40:35,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083301769] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:40:35,754 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:40:35,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 22] total 55 [2022-03-01 15:40:35,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979011595] [2022-03-01 15:40:35,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:40:35,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-03-01 15:40:35,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:35,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-03-01 15:40:35,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2061, Unknown=14, NotChecked=686, Total=2970 [2022-03-01 15:40:35,756 INFO L87 Difference]: Start difference. First operand 4076 states and 12958 transitions. Second operand has 55 states, 55 states have (on average 7.181818181818182) internal successors, (395), 55 states have internal predecessors, (395), 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) [2022-03-01 15:40:41,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:41,677 INFO L93 Difference]: Finished difference Result 22154 states and 72973 transitions. [2022-03-01 15:40:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:40:41,678 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 7.181818181818182) internal successors, (395), 55 states have internal predecessors, (395), 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 148 [2022-03-01 15:40:41,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:41,730 INFO L225 Difference]: With dead ends: 22154 [2022-03-01 15:40:41,730 INFO L226 Difference]: Without dead ends: 12802 [2022-03-01 15:40:41,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 272 SyntacticMatches, 43 SemanticMatches, 96 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 2698 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1812, Invalid=6392, Unknown=14, NotChecked=1288, Total=9506 [2022-03-01 15:40:41,733 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 2916 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 5567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3737 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:41,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2916 Valid, 4410 Invalid, 5567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1683 Invalid, 0 Unknown, 3737 Unchecked, 1.0s Time] [2022-03-01 15:40:41,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2022-03-01 15:40:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 3724. [2022-03-01 15:40:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3724 states, 3723 states have (on average 3.1796937953263495) internal successors, (11838), 3723 states have internal predecessors, (11838), 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) [2022-03-01 15:40:41,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3724 states to 3724 states and 11838 transitions. [2022-03-01 15:40:41,919 INFO L78 Accepts]: Start accepts. Automaton has 3724 states and 11838 transitions. Word has length 148 [2022-03-01 15:40:41,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:41,919 INFO L470 AbstractCegarLoop]: Abstraction has 3724 states and 11838 transitions. [2022-03-01 15:40:41,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 7.181818181818182) internal successors, (395), 55 states have internal predecessors, (395), 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) [2022-03-01 15:40:41,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3724 states and 11838 transitions. [2022-03-01 15:40:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-01 15:40:41,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:41,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:41,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 15:40:42,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:42,148 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash -341123613, now seen corresponding path program 3 times [2022-03-01 15:40:42,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:42,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349011831] [2022-03-01 15:40:42,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 15:40:42,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:42,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349011831] [2022-03-01 15:40:42,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349011831] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:42,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457231269] [2022-03-01 15:40:42,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 15:40:42,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:42,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:42,364 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:40:42,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 15:40:42,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 15:40:42,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:40:42,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-01 15:40:42,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:42,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-01 15:40:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 15:40:43,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-01 15:40:43,374 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-01 15:40:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:43,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:40:43,940 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_196 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_196) c_~A~0.base) c_~A~0.offset) c_~max~0)) (= (mod c_~b2~0 256) 0)) is different from false [2022-03-01 15:40:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 15:40:44,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457231269] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:40:44,155 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:40:44,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 23, 12] total 35 [2022-03-01 15:40:44,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930154162] [2022-03-01 15:40:44,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:40:44,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-01 15:40:44,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:44,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-01 15:40:44,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=958, Unknown=12, NotChecked=64, Total=1190 [2022-03-01 15:40:44,158 INFO L87 Difference]: Start difference. First operand 3724 states and 11838 transitions. Second operand has 35 states, 35 states have (on average 9.514285714285714) internal successors, (333), 35 states have internal predecessors, (333), 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) [2022-03-01 15:40:46,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:46,829 INFO L93 Difference]: Finished difference Result 9257 states and 30202 transitions. [2022-03-01 15:40:46,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:40:46,829 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 9.514285714285714) internal successors, (333), 35 states have internal predecessors, (333), 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 148 [2022-03-01 15:40:46,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:46,843 INFO L225 Difference]: With dead ends: 9257 [2022-03-01 15:40:46,843 INFO L226 Difference]: Without dead ends: 3506 [2022-03-01 15:40:46,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 277 SyntacticMatches, 4 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1836 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1214, Invalid=5584, Unknown=12, NotChecked=162, Total=6972 [2022-03-01 15:40:46,845 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1745 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 388 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:46,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1745 Valid, 3012 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1069 Invalid, 0 Unknown, 388 Unchecked, 0.7s Time] [2022-03-01 15:40:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2022-03-01 15:40:46,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 3443. [2022-03-01 15:40:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3443 states, 3442 states have (on average 3.207437536316095) internal successors, (11040), 3442 states have internal predecessors, (11040), 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) [2022-03-01 15:40:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 11040 transitions. [2022-03-01 15:40:46,926 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 11040 transitions. Word has length 148 [2022-03-01 15:40:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:46,926 INFO L470 AbstractCegarLoop]: Abstraction has 3443 states and 11040 transitions. [2022-03-01 15:40:46,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 9.514285714285714) internal successors, (333), 35 states have internal predecessors, (333), 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) [2022-03-01 15:40:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 11040 transitions. [2022-03-01 15:40:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-01 15:40:46,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:46,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:46,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 15:40:47,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:47,152 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:47,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:47,152 INFO L85 PathProgramCache]: Analyzing trace with hash 292214987, now seen corresponding path program 4 times [2022-03-01 15:40:47,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:47,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253418279] [2022-03-01 15:40:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:47,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:47,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:47,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253418279] [2022-03-01 15:40:47,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253418279] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:47,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980640522] [2022-03-01 15:40:47,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 15:40:47,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:47,289 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:40:47,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 15:40:47,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 15:40:47,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:40:47,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-01 15:40:47,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:47,661 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-01 15:40:47,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 15:40:47,897 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 15:40:48,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-01 15:40:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:48,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:40:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:49,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980640522] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:40:49,039 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:40:49,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 23, 11] total 34 [2022-03-01 15:40:49,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700501033] [2022-03-01 15:40:49,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:40:49,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-01 15:40:49,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:49,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-01 15:40:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=945, Unknown=0, NotChecked=0, Total=1122 [2022-03-01 15:40:49,041 INFO L87 Difference]: Start difference. First operand 3443 states and 11040 transitions. Second operand has 34 states, 34 states have (on average 9.294117647058824) internal successors, (316), 34 states have internal predecessors, (316), 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) [2022-03-01 15:40:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:52,866 INFO L93 Difference]: Finished difference Result 24429 states and 81231 transitions. [2022-03-01 15:40:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:40:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.294117647058824) internal successors, (316), 34 states have internal predecessors, (316), 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 148 [2022-03-01 15:40:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:52,908 INFO L225 Difference]: With dead ends: 24429 [2022-03-01 15:40:52,908 INFO L226 Difference]: Without dead ends: 10705 [2022-03-01 15:40:52,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2435 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2362, Invalid=7340, Unknown=0, NotChecked=0, Total=9702 [2022-03-01 15:40:52,911 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 1708 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:52,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1708 Valid, 4067 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 15:40:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10705 states. [2022-03-01 15:40:53,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10705 to 3320. [2022-03-01 15:40:53,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 3.2175354022295872) internal successors, (10679), 3319 states have internal predecessors, (10679), 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) [2022-03-01 15:40:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 10679 transitions. [2022-03-01 15:40:53,093 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 10679 transitions. Word has length 148 [2022-03-01 15:40:53,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:53,093 INFO L470 AbstractCegarLoop]: Abstraction has 3320 states and 10679 transitions. [2022-03-01 15:40:53,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.294117647058824) internal successors, (316), 34 states have internal predecessors, (316), 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) [2022-03-01 15:40:53,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 10679 transitions. [2022-03-01 15:40:53,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-01 15:40:53,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:53,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:53,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 15:40:53,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:53,326 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash 304969057, now seen corresponding path program 5 times [2022-03-01 15:40:53,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:53,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219721760] [2022-03-01 15:40:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:53,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:53,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:53,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:53,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219721760] [2022-03-01 15:40:53,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219721760] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:53,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237839324] [2022-03-01 15:40:53,553 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 15:40:53,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:53,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:53,554 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:40:53,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 15:40:53,655 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 15:40:53,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:40:53,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 41 conjunts are in the unsatisfiable core [2022-03-01 15:40:53,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:53,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 15:40:53,756 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 15:40:53,757 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-01 15:40:54,054 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-01 15:40:54,141 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-01 15:40:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:40:54,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:40:54,382 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_266 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_266) c_~A~0.base) c_~A~0.offset) c_~max~0)) is different from false [2022-03-01 15:40:54,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-03-01 15:40:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-03-01 15:40:54,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237839324] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:40:54,719 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:40:54,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 18] total 34 [2022-03-01 15:40:54,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561161954] [2022-03-01 15:40:54,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:40:54,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-01 15:40:54,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:54,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-01 15:40:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=925, Unknown=8, NotChecked=62, Total=1122 [2022-03-01 15:40:54,725 INFO L87 Difference]: Start difference. First operand 3320 states and 10679 transitions. Second operand has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 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) [2022-03-01 15:40:56,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:56,067 INFO L93 Difference]: Finished difference Result 11443 states and 38021 transitions. [2022-03-01 15:40:56,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:40:56,068 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 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 148 [2022-03-01 15:40:56,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:56,080 INFO L225 Difference]: With dead ends: 11443 [2022-03-01 15:40:56,081 INFO L226 Difference]: Without dead ends: 4617 [2022-03-01 15:40:56,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 285 SyntacticMatches, 17 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=929, Invalid=2973, Unknown=8, NotChecked=122, Total=4032 [2022-03-01 15:40:56,082 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 1474 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 296 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:56,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1474 Valid, 3426 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1188 Invalid, 0 Unknown, 296 Unchecked, 0.5s Time] [2022-03-01 15:40:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4617 states. [2022-03-01 15:40:56,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4617 to 1767. [2022-03-01 15:40:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1766 states have (on average 3.1438278595696487) internal successors, (5552), 1766 states have internal predecessors, (5552), 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) [2022-03-01 15:40:56,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 5552 transitions. [2022-03-01 15:40:56,141 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 5552 transitions. Word has length 148 [2022-03-01 15:40:56,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:56,142 INFO L470 AbstractCegarLoop]: Abstraction has 1767 states and 5552 transitions. [2022-03-01 15:40:56,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 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) [2022-03-01 15:40:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 5552 transitions. [2022-03-01 15:40:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-01 15:40:56,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:56,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:56,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 15:40:56,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:56,364 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:40:56,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:56,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1792400041, now seen corresponding path program 6 times [2022-03-01 15:40:56,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:56,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384177543] [2022-03-01 15:40:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:56,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 15:40:56,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:56,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384177543] [2022-03-01 15:40:56,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384177543] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:40:56,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081175047] [2022-03-01 15:40:56,539 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 15:40:56,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:56,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:40:56,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:40:56,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 15:40:56,625 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-03-01 15:40:56,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:40:56,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-01 15:40:56,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:40:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 15:40:56,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 15:40:56,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081175047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:56,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 15:40:56,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 12 [2022-03-01 15:40:56,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181384539] [2022-03-01 15:40:56,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:56,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 15:40:56,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:56,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 15:40:56,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-01 15:40:56,913 INFO L87 Difference]: Start difference. First operand 1767 states and 5552 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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) [2022-03-01 15:40:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:57,043 INFO L93 Difference]: Finished difference Result 1764 states and 5549 transitions. [2022-03-01 15:40:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 15:40:57,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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 148 [2022-03-01 15:40:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:57,044 INFO L225 Difference]: With dead ends: 1764 [2022-03-01 15:40:57,044 INFO L226 Difference]: Without dead ends: 0 [2022-03-01 15:40:57,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:40:57,045 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 137 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:57,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 613 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:40:57,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-01 15:40:57,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-01 15:40:57,045 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) [2022-03-01 15:40:57,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-01 15:40:57,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2022-03-01 15:40:57,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:57,046 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-01 15:40:57,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 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) [2022-03-01 15:40:57,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-01 15:40:57,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-01 15:40:57,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-01 15:40:57,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-01 15:40:57,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-01 15:40:57,049 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-01 15:40:57,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-01 15:40:57,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:40:57,266 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1] [2022-03-01 15:40:57,267 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 15:40:57,267 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 15:40:57,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 03:40:57 BasicIcfg [2022-03-01 15:40:57,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 15:40:57,269 INFO L158 Benchmark]: Toolchain (without parser) took 35261.32ms. Allocated memory was 187.7MB in the beginning and 710.9MB in the end (delta: 523.2MB). Free memory was 130.0MB in the beginning and 440.1MB in the end (delta: -310.1MB). Peak memory consumption was 213.4MB. Max. memory is 8.0GB. [2022-03-01 15:40:57,269 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 15:40:57,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.26ms. Allocated memory was 187.7MB in the beginning and 276.8MB in the end (delta: 89.1MB). Free memory was 129.9MB in the beginning and 247.2MB in the end (delta: -117.3MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-03-01 15:40:57,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.75ms. Allocated memory is still 276.8MB. Free memory was 247.2MB in the beginning and 245.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 15:40:57,270 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 276.8MB. Free memory was 245.1MB in the beginning and 243.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:40:57,270 INFO L158 Benchmark]: RCFGBuilder took 583.66ms. Allocated memory is still 276.8MB. Free memory was 243.6MB in the beginning and 223.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-03-01 15:40:57,270 INFO L158 Benchmark]: TraceAbstraction took 34317.83ms. Allocated memory was 276.8MB in the beginning and 710.9MB in the end (delta: 434.1MB). Free memory was 222.6MB in the beginning and 440.1MB in the end (delta: -217.6MB). Peak memory consumption was 217.6MB. Max. memory is 8.0GB. [2022-03-01 15:40:57,271 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 187.7MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 294.26ms. Allocated memory was 187.7MB in the beginning and 276.8MB in the end (delta: 89.1MB). Free memory was 129.9MB in the beginning and 247.2MB in the end (delta: -117.3MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.75ms. Allocated memory is still 276.8MB. Free memory was 247.2MB in the beginning and 245.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 276.8MB. Free memory was 245.1MB in the beginning and 243.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 583.66ms. Allocated memory is still 276.8MB. Free memory was 243.6MB in the beginning and 223.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 34317.83ms. Allocated memory was 276.8MB in the beginning and 710.9MB in the end (delta: 434.1MB). Free memory was 222.6MB in the beginning and 440.1MB in the end (delta: -217.6MB). Peak memory consumption was 217.6MB. 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: 115]: 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 with 1 thread instances CFG has 7 procedures, 194 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 34.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.2s, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10911 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10911 mSDsluCounter, 21915 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 6506 IncrementalHoareTripleChecker+Unchecked, 21335 mSDsCounter, 647 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7561 IncrementalHoareTripleChecker+Invalid, 14714 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 647 mSolverCounterUnsat, 2081 mSDtfsCounter, 7561 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2357 GetRequests, 1820 SyntacticMatches, 75 SemanticMatches, 462 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 9447 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4076occurred in iteration=6, InterpolantAutomatonStates: 280, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 27419 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 2587 NumberOfCodeBlocks, 2560 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3446 ConstructedInterpolants, 106 QuantifiedInterpolants, 19222 SizeOfPredicates, 151 NumberOfNonLiveVariables, 2218 ConjunctsInSsa, 238 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 25/58 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-01 15:40:57,301 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...