/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/popl20-horseshoe.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:44:59,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:44:59,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:44:59,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:44:59,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:44:59,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:44:59,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:44:59,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:44:59,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:45:00,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:45:00,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:45:00,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:45:00,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:45:00,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:45:00,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:45:00,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:45:00,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:45:00,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:45:00,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:45:00,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:45:00,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:45:00,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:45:00,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:45:00,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:45:00,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 22:45:00,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 22:45:00,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 22:45:00,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 22:45:00,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 22:45:00,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 22:45:00,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 22:45:00,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 22:45:00,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 22:45:00,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 22:45:00,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 22:45:00,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 22:45:00,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 22:45:00,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 22:45:00,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:45:00,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:45:00,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:45:00,032 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 [2022-02-10 22:45:00,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:45:00,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:45:00,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:45:00,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:45:00,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:45:00,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:45:00,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:45:00,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:45:00,057 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:45:00,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:45:00,058 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:45:00,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:45:00,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:45:00,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:45:00,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:45:00,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:45:00,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:45:00,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:45:00,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:45:00,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:45:00,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:45:00,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:45:00,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:45:00,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:45:00,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:45:00,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:45:00,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:45:00,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:45:00,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:45:00,268 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:45:00,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2022-02-10 22:45:00,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4aeb8edd/10326fd1aec84208bad4e6b99b6f008c/FLAGd67179c88 [2022-02-10 22:45:00,636 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:45:00,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2022-02-10 22:45:00,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4aeb8edd/10326fd1aec84208bad4e6b99b6f008c/FLAGd67179c88 [2022-02-10 22:45:01,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4aeb8edd/10326fd1aec84208bad4e6b99b6f008c [2022-02-10 22:45:01,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:45:01,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:45:01,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:45:01,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:45:01,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:45:01,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e7bb96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01, skipping insertion in model container [2022-02-10 22:45:01,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:45:01,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:45:01,295 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/popl20-horseshoe.wvr.c[3424,3437] [2022-02-10 22:45:01,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:45:01,316 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:45:01,336 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/popl20-horseshoe.wvr.c[3424,3437] [2022-02-10 22:45:01,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:45:01,351 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:45:01,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01 WrapperNode [2022-02-10 22:45:01,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:45:01,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:45:01,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:45:01,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:45:01,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,390 INFO L137 Inliner]: procedures = 25, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 245 [2022-02-10 22:45:01,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:45:01,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:45:01,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:45:01,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:45:01,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:45:01,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:45:01,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:45:01,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:45:01,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (1/1) ... [2022-02-10 22:45:01,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:45:01,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:45:01,456 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) [2022-02-10 22:45:01,473 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 [2022-02-10 22:45:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:45:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:45:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:45:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:45:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:45:01,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:45:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:45:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:45:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:45:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:45:01,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:45:01,488 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:45:01,554 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:45:01,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:45:01,834 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:45:01,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:45:01,906 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-10 22:45:01,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:45:01 BoogieIcfgContainer [2022-02-10 22:45:01,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:45:01,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:45:01,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:45:01,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:45:01,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:45:01" (1/3) ... [2022-02-10 22:45:01,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34afc141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:45:01, skipping insertion in model container [2022-02-10 22:45:01,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:45:01" (2/3) ... [2022-02-10 22:45:01,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34afc141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:45:01, skipping insertion in model container [2022-02-10 22:45:01,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:45:01" (3/3) ... [2022-02-10 22:45:01,915 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-horseshoe.wvr.c [2022-02-10 22:45:01,918 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:45:01,919 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:45:01,919 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:45:01,919 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:45:01,977 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,977 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,977 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,978 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,978 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,978 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,978 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,978 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,979 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,979 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,979 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,979 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,979 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,979 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,980 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,980 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,980 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,980 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,980 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,980 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,981 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,982 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,983 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,983 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,983 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,983 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,983 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,983 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,984 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,985 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,986 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,987 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,987 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,987 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,987 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,987 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,988 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,988 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,988 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,988 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,988 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,988 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,989 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,989 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,989 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,989 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,989 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,989 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,990 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,990 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,990 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,990 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,990 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,991 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,991 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,991 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,991 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,992 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,992 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,994 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,995 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,995 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,995 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,995 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,995 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,995 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,996 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,996 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,997 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,998 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,998 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,998 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,999 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,999 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,999 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:01,999 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:02,000 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:02,000 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:02,000 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:45:02,003 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 22:45:02,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:45:02,041 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:45:02,041 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 22:45:02,057 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 211 transitions, 446 flow [2022-02-10 22:45:02,195 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3854 states, 3853 states have (on average 3.975084349857254) internal successors, (15316), 3853 states have internal predecessors, (15316), 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) [2022-02-10 22:45:02,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 3854 states, 3853 states have (on average 3.975084349857254) internal successors, (15316), 3853 states have internal predecessors, (15316), 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) [2022-02-10 22:45:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-10 22:45:02,242 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:02,242 INFO L515 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, 1, 1] [2022-02-10 22:45:02,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:02,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash -126183821, now seen corresponding path program 1 times [2022-02-10 22:45:02,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:02,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532521544] [2022-02-10 22:45:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:02,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:02,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:02,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:02,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532521544] [2022-02-10 22:45:02,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532521544] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:02,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:45:02,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:45:02,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198639330] [2022-02-10 22:45:02,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:02,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:45:02,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:02,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:45:02,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:45:02,522 INFO L87 Difference]: Start difference. First operand has 3854 states, 3853 states have (on average 3.975084349857254) internal successors, (15316), 3853 states have internal predecessors, (15316), 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 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2022-02-10 22:45:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:02,664 INFO L93 Difference]: Finished difference Result 3854 states and 13372 transitions. [2022-02-10 22:45:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:45:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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 150 [2022-02-10 22:45:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:02,732 INFO L225 Difference]: With dead ends: 3854 [2022-02-10 22:45:02,733 INFO L226 Difference]: Without dead ends: 3848 [2022-02-10 22:45:02,734 INFO L933 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 [2022-02-10 22:45:02,737 INFO L934 BasicCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:02,737 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:45:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2022-02-10 22:45:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 3848. [2022-02-10 22:45:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.4743956329607486) internal successors, (13366), 3847 states have internal predecessors, (13366), 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) [2022-02-10 22:45:02,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 13366 transitions. [2022-02-10 22:45:02,973 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 13366 transitions. Word has length 150 [2022-02-10 22:45:02,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:02,973 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 13366 transitions. [2022-02-10 22:45:02,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2022-02-10 22:45:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 13366 transitions. [2022-02-10 22:45:03,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-10 22:45:03,002 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:03,002 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:03,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:45:03,003 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:03,006 INFO L85 PathProgramCache]: Analyzing trace with hash -49014216, now seen corresponding path program 1 times [2022-02-10 22:45:03,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:03,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950344649] [2022-02-10 22:45:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:03,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:03,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950344649] [2022-02-10 22:45:03,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950344649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:03,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:45:03,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:45:03,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631063134] [2022-02-10 22:45:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:03,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:45:03,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:45:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:45:03,279 INFO L87 Difference]: Start difference. First operand 3848 states and 13366 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2022-02-10 22:45:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:03,433 INFO L93 Difference]: Finished difference Result 4388 states and 14860 transitions. [2022-02-10 22:45:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:45:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 157 [2022-02-10 22:45:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:03,454 INFO L225 Difference]: With dead ends: 4388 [2022-02-10 22:45:03,454 INFO L226 Difference]: Without dead ends: 3854 [2022-02-10 22:45:03,458 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:45:03,459 INFO L934 BasicCegarLoop]: 159 mSDtfsCounter, 134 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:03,459 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 567 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:45:03,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2022-02-10 22:45:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3849. [2022-02-10 22:45:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3849 states, 3848 states have (on average 3.473752598752599) internal successors, (13367), 3848 states have internal predecessors, (13367), 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) [2022-02-10 22:45:03,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3849 states to 3849 states and 13367 transitions. [2022-02-10 22:45:03,595 INFO L78 Accepts]: Start accepts. Automaton has 3849 states and 13367 transitions. Word has length 157 [2022-02-10 22:45:03,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:03,597 INFO L470 AbstractCegarLoop]: Abstraction has 3849 states and 13367 transitions. [2022-02-10 22:45:03,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2022-02-10 22:45:03,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3849 states and 13367 transitions. [2022-02-10 22:45:03,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-10 22:45:03,609 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:03,609 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:03,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:45:03,611 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:03,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash -697944368, now seen corresponding path program 1 times [2022-02-10 22:45:03,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:03,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028149584] [2022-02-10 22:45:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:03,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:03,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:45:03,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:03,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028149584] [2022-02-10 22:45:03,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028149584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:03,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:45:03,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:45:03,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518039909] [2022-02-10 22:45:03,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:03,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:45:03,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:03,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:45:03,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:45:03,731 INFO L87 Difference]: Start difference. First operand 3849 states and 13367 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2022-02-10 22:45:03,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:03,831 INFO L93 Difference]: Finished difference Result 4689 states and 15779 transitions. [2022-02-10 22:45:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:45:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 164 [2022-02-10 22:45:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:03,855 INFO L225 Difference]: With dead ends: 4689 [2022-02-10 22:45:03,855 INFO L226 Difference]: Without dead ends: 3855 [2022-02-10 22:45:03,856 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:45:03,862 INFO L934 BasicCegarLoop]: 159 mSDtfsCounter, 432 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:03,863 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 476 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:45:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2022-02-10 22:45:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3850. [2022-02-10 22:45:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.4731098986749807) internal successors, (13368), 3849 states have internal predecessors, (13368), 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) [2022-02-10 22:45:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 13368 transitions. [2022-02-10 22:45:04,030 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 13368 transitions. Word has length 164 [2022-02-10 22:45:04,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:04,031 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 13368 transitions. [2022-02-10 22:45:04,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2022-02-10 22:45:04,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 13368 transitions. [2022-02-10 22:45:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:04,043 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:04,043 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:04,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:45:04,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:04,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:04,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1840264963, now seen corresponding path program 1 times [2022-02-10 22:45:04,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:04,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840085463] [2022-02-10 22:45:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:04,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:45:04,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:04,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840085463] [2022-02-10 22:45:04,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840085463] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:04,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:45:04,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:45:04,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571500066] [2022-02-10 22:45:04,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:04,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:45:04,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:45:04,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:45:04,271 INFO L87 Difference]: Start difference. First operand 3850 states and 13368 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-02-10 22:45:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:04,378 INFO L93 Difference]: Finished difference Result 3982 states and 13786 transitions. [2022-02-10 22:45:04,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:45:04,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 171 [2022-02-10 22:45:04,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:04,409 INFO L225 Difference]: With dead ends: 3982 [2022-02-10 22:45:04,409 INFO L226 Difference]: Without dead ends: 3982 [2022-02-10 22:45:04,410 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:45:04,414 INFO L934 BasicCegarLoop]: 167 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:04,415 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 239 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:45:04,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2022-02-10 22:45:04,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3982. [2022-02-10 22:45:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3981 states have (on average 3.462949007786988) internal successors, (13786), 3981 states have internal predecessors, (13786), 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) [2022-02-10 22:45:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 13786 transitions. [2022-02-10 22:45:04,504 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 13786 transitions. Word has length 171 [2022-02-10 22:45:04,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:04,506 INFO L470 AbstractCegarLoop]: Abstraction has 3982 states and 13786 transitions. [2022-02-10 22:45:04,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-02-10 22:45:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 13786 transitions. [2022-02-10 22:45:04,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:04,517 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:04,517 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:04,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:45:04,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash -476822511, now seen corresponding path program 2 times [2022-02-10 22:45:04,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:04,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38668588] [2022-02-10 22:45:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:04,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:45:04,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:04,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38668588] [2022-02-10 22:45:04,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38668588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:04,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:45:04,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:45:04,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842534093] [2022-02-10 22:45:04,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:04,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:45:04,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:04,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:45:04,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:45:04,626 INFO L87 Difference]: Start difference. First operand 3982 states and 13786 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-02-10 22:45:04,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:04,666 INFO L93 Difference]: Finished difference Result 4060 states and 13764 transitions. [2022-02-10 22:45:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:45:04,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 171 [2022-02-10 22:45:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:04,679 INFO L225 Difference]: With dead ends: 4060 [2022-02-10 22:45:04,679 INFO L226 Difference]: Without dead ends: 4060 [2022-02-10 22:45:04,680 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:45:04,680 INFO L934 BasicCegarLoop]: 167 mSDtfsCounter, 15 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:04,680 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 237 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:45:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4060 states. [2022-02-10 22:45:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4060 to 4060. [2022-02-10 22:45:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4060 states, 4059 states have (on average 3.3909830007390984) internal successors, (13764), 4059 states have internal predecessors, (13764), 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) [2022-02-10 22:45:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 13764 transitions. [2022-02-10 22:45:04,804 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 13764 transitions. Word has length 171 [2022-02-10 22:45:04,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:04,804 INFO L470 AbstractCegarLoop]: Abstraction has 4060 states and 13764 transitions. [2022-02-10 22:45:04,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-02-10 22:45:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 13764 transitions. [2022-02-10 22:45:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:04,817 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:04,818 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:04,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:45:04,818 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:04,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:04,819 INFO L85 PathProgramCache]: Analyzing trace with hash 975819775, now seen corresponding path program 3 times [2022-02-10 22:45:04,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:04,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429719015] [2022-02-10 22:45:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:04,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:07,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:07,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429719015] [2022-02-10 22:45:07,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429719015] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:45:07,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483467362] [2022-02-10 22:45:07,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:45:07,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:07,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:45:07,132 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) [2022-02-10 22:45:07,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:45:07,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-02-10 22:45:07,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:45:07,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-10 22:45:07,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:45:09,320 INFO L353 Elim1Store]: treesize reduction 86, result has 23.9 percent of original size [2022-02-10 22:45:09,321 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 41 [2022-02-10 22:45:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:45:09,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:45:09,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483467362] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:09,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:45:09,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [38] total 45 [2022-02-10 22:45:09,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314462390] [2022-02-10 22:45:09,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:09,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-10 22:45:09,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-10 22:45:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1793, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:45:09,566 INFO L87 Difference]: Start difference. First operand 4060 states and 13764 transitions. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 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) [2022-02-10 22:45:09,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:09,726 INFO L93 Difference]: Finished difference Result 5548 states and 18521 transitions. [2022-02-10 22:45:09,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-10 22:45:09,727 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 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 171 [2022-02-10 22:45:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:09,744 INFO L225 Difference]: With dead ends: 5548 [2022-02-10 22:45:09,744 INFO L226 Difference]: Without dead ends: 5524 [2022-02-10 22:45:09,745 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:45:09,745 INFO L934 BasicCegarLoop]: 238 mSDtfsCounter, 350 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 135 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:09,746 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2226 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 0 Unknown, 135 Unchecked, 0.1s Time] [2022-02-10 22:45:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2022-02-10 22:45:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 4132. [2022-02-10 22:45:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4132 states, 4131 states have (on average 3.374727668845316) internal successors, (13941), 4131 states have internal predecessors, (13941), 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) [2022-02-10 22:45:09,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4132 states to 4132 states and 13941 transitions. [2022-02-10 22:45:09,850 INFO L78 Accepts]: Start accepts. Automaton has 4132 states and 13941 transitions. Word has length 171 [2022-02-10 22:45:09,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:09,851 INFO L470 AbstractCegarLoop]: Abstraction has 4132 states and 13941 transitions. [2022-02-10 22:45:09,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 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) [2022-02-10 22:45:09,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4132 states and 13941 transitions. [2022-02-10 22:45:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:09,862 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:09,862 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:09,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 22:45:10,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-10 22:45:10,076 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1086215207, now seen corresponding path program 4 times [2022-02-10 22:45:10,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:10,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502601453] [2022-02-10 22:45:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:10,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:12,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:12,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502601453] [2022-02-10 22:45:12,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502601453] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:45:12,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343463694] [2022-02-10 22:45:12,694 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:45:12,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:12,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:45:12,708 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) [2022-02-10 22:45:12,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:45:12,814 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:45:12,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:45:12,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 62 conjunts are in the unsatisfiable core [2022-02-10 22:45:12,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:45:16,438 INFO L353 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2022-02-10 22:45:16,448 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 33 [2022-02-10 22:45:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:16,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:45:17,638 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-02-10 22:45:17,639 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 119 [2022-02-10 22:45:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:21,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343463694] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:45:21,255 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:45:21,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 31, 26] total 82 [2022-02-10 22:45:21,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311357401] [2022-02-10 22:45:21,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:45:21,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-10 22:45:21,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:21,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-10 22:45:21,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=791, Invalid=5850, Unknown=1, NotChecked=0, Total=6642 [2022-02-10 22:45:21,259 INFO L87 Difference]: Start difference. First operand 4132 states and 13941 transitions. Second operand has 82 states, 82 states have (on average 5.439024390243903) internal successors, (446), 82 states have internal predecessors, (446), 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) [2022-02-10 22:45:28,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:28,335 INFO L93 Difference]: Finished difference Result 13659 states and 45743 transitions. [2022-02-10 22:45:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-10 22:45:28,336 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 5.439024390243903) internal successors, (446), 82 states have internal predecessors, (446), 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 171 [2022-02-10 22:45:28,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:28,388 INFO L225 Difference]: With dead ends: 13659 [2022-02-10 22:45:28,388 INFO L226 Difference]: Without dead ends: 13587 [2022-02-10 22:45:28,392 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 291 SyntacticMatches, 11 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7037 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=2767, Invalid=18111, Unknown=2, NotChecked=0, Total=20880 [2022-02-10 22:45:28,392 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 3840 mSDsluCounter, 8844 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3840 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 430 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:28,392 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3840 Valid, 8691 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2319 Invalid, 0 Unknown, 430 Unchecked, 1.3s Time] [2022-02-10 22:45:28,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13587 states. [2022-02-10 22:45:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13587 to 5925. [2022-02-10 22:45:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5924 states have (on average 3.288318703578663) internal successors, (19480), 5924 states have internal predecessors, (19480), 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) [2022-02-10 22:45:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 19480 transitions. [2022-02-10 22:45:28,608 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 19480 transitions. Word has length 171 [2022-02-10 22:45:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:28,608 INFO L470 AbstractCegarLoop]: Abstraction has 5925 states and 19480 transitions. [2022-02-10 22:45:28,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 5.439024390243903) internal successors, (446), 82 states have internal predecessors, (446), 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) [2022-02-10 22:45:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 19480 transitions. [2022-02-10 22:45:28,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:28,624 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:28,624 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:28,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:45:28,842 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,SelfDestructingSolverStorable6 [2022-02-10 22:45:28,843 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1752649015, now seen corresponding path program 5 times [2022-02-10 22:45:28,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:28,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631278866] [2022-02-10 22:45:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:30,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:30,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:30,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631278866] [2022-02-10 22:45:30,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631278866] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:45:30,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689849388] [2022-02-10 22:45:30,626 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:45:30,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:30,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:45:30,627 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) [2022-02-10 22:45:30,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:45:30,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:45:30,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:45:30,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-10 22:45:30,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:45:35,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:45:35,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:45:35,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:45:35,070 INFO L353 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-02-10 22:45:35,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 25 [2022-02-10 22:45:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:35,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:45:36,348 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-02-10 22:45:36,348 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 131 [2022-02-10 22:45:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:39,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689849388] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:45:39,833 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:45:39,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36, 26] total 85 [2022-02-10 22:45:39,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899111739] [2022-02-10 22:45:39,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:45:39,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-02-10 22:45:39,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-02-10 22:45:39,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=944, Invalid=6195, Unknown=1, NotChecked=0, Total=7140 [2022-02-10 22:45:39,836 INFO L87 Difference]: Start difference. First operand 5925 states and 19480 transitions. Second operand has 85 states, 85 states have (on average 5.1647058823529415) internal successors, (439), 85 states have internal predecessors, (439), 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) [2022-02-10 22:45:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:43,425 INFO L93 Difference]: Finished difference Result 11298 states and 37683 transitions. [2022-02-10 22:45:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-10 22:45:43,425 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 5.1647058823529415) internal successors, (439), 85 states have internal predecessors, (439), 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 171 [2022-02-10 22:45:43,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:43,464 INFO L225 Difference]: With dead ends: 11298 [2022-02-10 22:45:43,464 INFO L226 Difference]: Without dead ends: 11250 [2022-02-10 22:45:43,467 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 281 SyntacticMatches, 16 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6502 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2681, Invalid=14609, Unknown=2, NotChecked=0, Total=17292 [2022-02-10 22:45:43,467 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 3104 mSDsluCounter, 8071 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 7923 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 352 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:43,468 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3104 Valid, 7923 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2009 Invalid, 0 Unknown, 352 Unchecked, 0.8s Time] [2022-02-10 22:45:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11250 states. [2022-02-10 22:45:43,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11250 to 6020. [2022-02-10 22:45:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6020 states, 6019 states have (on average 3.3010466854959297) internal successors, (19869), 6019 states have internal predecessors, (19869), 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) [2022-02-10 22:45:43,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6020 states to 6020 states and 19869 transitions. [2022-02-10 22:45:43,634 INFO L78 Accepts]: Start accepts. Automaton has 6020 states and 19869 transitions. Word has length 171 [2022-02-10 22:45:43,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:43,635 INFO L470 AbstractCegarLoop]: Abstraction has 6020 states and 19869 transitions. [2022-02-10 22:45:43,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 5.1647058823529415) internal successors, (439), 85 states have internal predecessors, (439), 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) [2022-02-10 22:45:43,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6020 states and 19869 transitions. [2022-02-10 22:45:43,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:43,647 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:43,648 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:43,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 22:45:43,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:43,865 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:43,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:43,866 INFO L85 PathProgramCache]: Analyzing trace with hash -430411985, now seen corresponding path program 6 times [2022-02-10 22:45:43,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:43,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815405239] [2022-02-10 22:45:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:43,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:45,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:45,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815405239] [2022-02-10 22:45:45,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815405239] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:45:45,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027254742] [2022-02-10 22:45:45,945 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:45:45,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:45,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:45:45,946 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) [2022-02-10 22:45:45,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:45:46,059 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-02-10 22:45:46,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:45:46,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-10 22:45:46,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:45:48,102 INFO L353 Elim1Store]: treesize reduction 89, result has 21.2 percent of original size [2022-02-10 22:45:48,103 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 38 [2022-02-10 22:45:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:45:48,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:45:48,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027254742] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:45:48,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:45:48,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [37] total 43 [2022-02-10 22:45:48,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765433206] [2022-02-10 22:45:48,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:45:48,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:45:48,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:45:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1622, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:45:48,220 INFO L87 Difference]: Start difference. First operand 6020 states and 19869 transitions. Second operand has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2022-02-10 22:45:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:45:48,344 INFO L93 Difference]: Finished difference Result 8817 states and 29052 transitions. [2022-02-10 22:45:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:45:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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 171 [2022-02-10 22:45:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:45:48,392 INFO L225 Difference]: With dead ends: 8817 [2022-02-10 22:45:48,392 INFO L226 Difference]: Without dead ends: 8793 [2022-02-10 22:45:48,393 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=198, Invalid=1782, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:45:48,394 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 554 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:45:48,395 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [554 Valid, 1778 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 116 Unchecked, 0.0s Time] [2022-02-10 22:45:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8793 states. [2022-02-10 22:45:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8793 to 6040. [2022-02-10 22:45:48,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6040 states, 6039 states have (on average 3.2980625931445604) internal successors, (19917), 6039 states have internal predecessors, (19917), 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) [2022-02-10 22:45:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6040 states to 6040 states and 19917 transitions. [2022-02-10 22:45:48,548 INFO L78 Accepts]: Start accepts. Automaton has 6040 states and 19917 transitions. Word has length 171 [2022-02-10 22:45:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:45:48,549 INFO L470 AbstractCegarLoop]: Abstraction has 6040 states and 19917 transitions. [2022-02-10 22:45:48,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2022-02-10 22:45:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6040 states and 19917 transitions. [2022-02-10 22:45:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:45:48,562 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:45:48,562 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:45:48,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 22:45:48,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:48,776 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:45:48,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:45:48,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2032165039, now seen corresponding path program 7 times [2022-02-10 22:45:48,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:45:48,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941792081] [2022-02-10 22:45:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:45:48,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:45:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:50,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:45:50,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941792081] [2022-02-10 22:45:50,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941792081] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:45:50,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998903882] [2022-02-10 22:45:50,504 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:45:50,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:45:50,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:45:50,505 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) [2022-02-10 22:45:50,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:45:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:45:50,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-10 22:45:50,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:45:53,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:45:53,099 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 22:45:53,099 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 19 [2022-02-10 22:45:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:53,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:45:53,789 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-02-10 22:45:53,790 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 131 [2022-02-10 22:45:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:45:57,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998903882] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:45:57,367 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:45:57,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 26] total 86 [2022-02-10 22:45:57,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612022067] [2022-02-10 22:45:57,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:45:57,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-10 22:45:57,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:45:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-10 22:45:57,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=992, Invalid=6318, Unknown=0, NotChecked=0, Total=7310 [2022-02-10 22:45:57,372 INFO L87 Difference]: Start difference. First operand 6040 states and 19917 transitions. Second operand has 86 states, 86 states have (on average 5.22093023255814) internal successors, (449), 86 states have internal predecessors, (449), 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) [2022-02-10 22:46:00,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:46:00,727 INFO L93 Difference]: Finished difference Result 13803 states and 45662 transitions. [2022-02-10 22:46:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-10 22:46:00,727 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 5.22093023255814) internal successors, (449), 86 states have internal predecessors, (449), 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 171 [2022-02-10 22:46:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:46:00,759 INFO L225 Difference]: With dead ends: 13803 [2022-02-10 22:46:00,759 INFO L226 Difference]: Without dead ends: 13503 [2022-02-10 22:46:00,761 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 280 SyntacticMatches, 14 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6331 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2766, Invalid=14525, Unknown=1, NotChecked=0, Total=17292 [2022-02-10 22:46:00,761 INFO L934 BasicCegarLoop]: 208 mSDtfsCounter, 4458 mSDsluCounter, 7932 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4458 SdHoareTripleChecker+Valid, 7236 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1257 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:46:00,761 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4458 Valid, 7236 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 2199 Invalid, 0 Unknown, 1257 Unchecked, 1.0s Time] [2022-02-10 22:46:00,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13503 states. [2022-02-10 22:46:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13503 to 6778. [2022-02-10 22:46:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6778 states, 6777 states have (on average 3.2970340858787073) internal successors, (22344), 6777 states have internal predecessors, (22344), 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) [2022-02-10 22:46:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 22344 transitions. [2022-02-10 22:46:00,988 INFO L78 Accepts]: Start accepts. Automaton has 6778 states and 22344 transitions. Word has length 171 [2022-02-10 22:46:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:46:00,988 INFO L470 AbstractCegarLoop]: Abstraction has 6778 states and 22344 transitions. [2022-02-10 22:46:00,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 5.22093023255814) internal successors, (449), 86 states have internal predecessors, (449), 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) [2022-02-10 22:46:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6778 states and 22344 transitions. [2022-02-10 22:46:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:46:01,004 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:46:01,004 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:46:01,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 22:46:01,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-10 22:46:01,222 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:46:01,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:46:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1017368483, now seen corresponding path program 8 times [2022-02-10 22:46:01,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:46:01,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889434688] [2022-02-10 22:46:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:46:01,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:46:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:46:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:02,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:46:02,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889434688] [2022-02-10 22:46:02,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889434688] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:46:02,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229927980] [2022-02-10 22:46:02,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:46:02,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:46:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:46:02,995 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) [2022-02-10 22:46:02,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:46:03,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 22:46:03,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:46:03,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-10 22:46:03,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:46:04,908 INFO L353 Elim1Store]: treesize reduction 89, result has 21.2 percent of original size [2022-02-10 22:46:04,909 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 38 [2022-02-10 22:46:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:46:05,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:46:05,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229927980] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:46:05,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:46:05,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [36] total 42 [2022-02-10 22:46:05,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212830156] [2022-02-10 22:46:05,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:46:05,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:46:05,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:46:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:46:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1556, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:46:05,001 INFO L87 Difference]: Start difference. First operand 6778 states and 22344 transitions. Second operand has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2022-02-10 22:46:05,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:46:05,099 INFO L93 Difference]: Finished difference Result 8329 states and 27398 transitions. [2022-02-10 22:46:05,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:46:05,099 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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 171 [2022-02-10 22:46:05,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:46:05,119 INFO L225 Difference]: With dead ends: 8329 [2022-02-10 22:46:05,119 INFO L226 Difference]: Without dead ends: 8314 [2022-02-10 22:46:05,119 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=180, Invalid=1712, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:46:05,120 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 228 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 174 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:46:05,120 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2004 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 174 Unchecked, 0.1s Time] [2022-02-10 22:46:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8314 states. [2022-02-10 22:46:05,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 6775. [2022-02-10 22:46:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6775 states, 6774 states have (on average 3.2976085031000886) internal successors, (22338), 6774 states have internal predecessors, (22338), 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) [2022-02-10 22:46:05,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6775 states to 6775 states and 22338 transitions. [2022-02-10 22:46:05,243 INFO L78 Accepts]: Start accepts. Automaton has 6775 states and 22338 transitions. Word has length 171 [2022-02-10 22:46:05,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:46:05,243 INFO L470 AbstractCegarLoop]: Abstraction has 6775 states and 22338 transitions. [2022-02-10 22:46:05,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2022-02-10 22:46:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6775 states and 22338 transitions. [2022-02-10 22:46:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:46:05,258 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:46:05,258 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:46:05,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 22:46:05,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:46:05,472 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:46:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:46:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash 220766461, now seen corresponding path program 9 times [2022-02-10 22:46:05,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:46:05,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927849696] [2022-02-10 22:46:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:46:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:46:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:46:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:07,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:46:07,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927849696] [2022-02-10 22:46:07,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927849696] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:46:07,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882735107] [2022-02-10 22:46:07,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:46:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:46:07,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:46:07,233 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) [2022-02-10 22:46:07,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:46:07,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-02-10 22:46:07,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:46:07,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-10 22:46:07,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:46:10,207 INFO L353 Elim1Store]: treesize reduction 89, result has 21.2 percent of original size [2022-02-10 22:46:10,208 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 40 [2022-02-10 22:46:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:46:10,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:46:10,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882735107] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:46:10,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:46:10,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [36] total 42 [2022-02-10 22:46:10,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049617460] [2022-02-10 22:46:10,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:46:10,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:46:10,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:46:10,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:46:10,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1556, Unknown=1, NotChecked=0, Total=1722 [2022-02-10 22:46:10,320 INFO L87 Difference]: Start difference. First operand 6775 states and 22338 transitions. Second operand has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2022-02-10 22:46:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:46:10,450 INFO L93 Difference]: Finished difference Result 9998 states and 32998 transitions. [2022-02-10 22:46:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:46:10,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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 171 [2022-02-10 22:46:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:46:10,475 INFO L225 Difference]: With dead ends: 9998 [2022-02-10 22:46:10,475 INFO L226 Difference]: Without dead ends: 9983 [2022-02-10 22:46:10,476 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=1712, Unknown=1, NotChecked=0, Total=1892 [2022-02-10 22:46:10,478 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 434 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 166 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:46:10,478 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 2110 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 166 Unchecked, 0.1s Time] [2022-02-10 22:46:10,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9983 states. [2022-02-10 22:46:10,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9983 to 6783. [2022-02-10 22:46:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6783 states, 6782 states have (on average 3.2960778531406665) internal successors, (22354), 6782 states have internal predecessors, (22354), 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) [2022-02-10 22:46:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6783 states to 6783 states and 22354 transitions. [2022-02-10 22:46:10,721 INFO L78 Accepts]: Start accepts. Automaton has 6783 states and 22354 transitions. Word has length 171 [2022-02-10 22:46:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:46:10,722 INFO L470 AbstractCegarLoop]: Abstraction has 6783 states and 22354 transitions. [2022-02-10 22:46:10,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2022-02-10 22:46:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 6783 states and 22354 transitions. [2022-02-10 22:46:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:46:10,739 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:46:10,739 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:46:10,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 22:46:10,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:46:10,968 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:46:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:46:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1920451671, now seen corresponding path program 10 times [2022-02-10 22:46:10,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:46:10,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176673124] [2022-02-10 22:46:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:46:10,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:46:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:46:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:12,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:46:12,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176673124] [2022-02-10 22:46:12,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176673124] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:46:12,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147914116] [2022-02-10 22:46:12,519 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:46:12,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:46:12,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:46:12,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:46:12,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 22:46:12,643 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:46:12,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:46:12,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 62 conjunts are in the unsatisfiable core [2022-02-10 22:46:12,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:46:15,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:46:15,429 INFO L353 Elim1Store]: treesize reduction 70, result has 23.9 percent of original size [2022-02-10 22:46:15,429 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 36 [2022-02-10 22:46:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:15,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:46:15,960 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-02-10 22:46:15,960 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 131 [2022-02-10 22:46:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:19,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147914116] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:46:19,534 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:46:19,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 31, 26] total 79 [2022-02-10 22:46:19,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735487644] [2022-02-10 22:46:19,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:46:19,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-02-10 22:46:19,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:46:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-02-10 22:46:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=789, Invalid=5373, Unknown=0, NotChecked=0, Total=6162 [2022-02-10 22:46:19,536 INFO L87 Difference]: Start difference. First operand 6783 states and 22354 transitions. Second operand has 79 states, 79 states have (on average 5.582278481012659) internal successors, (441), 79 states have internal predecessors, (441), 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) [2022-02-10 22:46:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:46:24,357 INFO L93 Difference]: Finished difference Result 13205 states and 43585 transitions. [2022-02-10 22:46:24,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-10 22:46:24,358 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 5.582278481012659) internal successors, (441), 79 states have internal predecessors, (441), 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 171 [2022-02-10 22:46:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:46:24,399 INFO L225 Difference]: With dead ends: 13205 [2022-02-10 22:46:24,399 INFO L226 Difference]: Without dead ends: 13187 [2022-02-10 22:46:24,400 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 292 SyntacticMatches, 14 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5587 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2516, Invalid=13995, Unknown=1, NotChecked=0, Total=16512 [2022-02-10 22:46:24,400 INFO L934 BasicCegarLoop]: 195 mSDtfsCounter, 4317 mSDsluCounter, 7776 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 7692 SdHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 418 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:46:24,401 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4317 Valid, 7692 Invalid, 2333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1782 Invalid, 0 Unknown, 418 Unchecked, 1.0s Time] [2022-02-10 22:46:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13187 states. [2022-02-10 22:46:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13187 to 6798. [2022-02-10 22:46:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6798 states, 6797 states have (on average 3.2932175959982346) internal successors, (22384), 6797 states have internal predecessors, (22384), 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) [2022-02-10 22:46:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6798 states to 6798 states and 22384 transitions. [2022-02-10 22:46:24,651 INFO L78 Accepts]: Start accepts. Automaton has 6798 states and 22384 transitions. Word has length 171 [2022-02-10 22:46:24,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:46:24,652 INFO L470 AbstractCegarLoop]: Abstraction has 6798 states and 22384 transitions. [2022-02-10 22:46:24,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 5.582278481012659) internal successors, (441), 79 states have internal predecessors, (441), 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) [2022-02-10 22:46:24,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6798 states and 22384 transitions. [2022-02-10 22:46:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-10 22:46:24,664 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:46:24,664 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:46:24,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 22:46:24,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 22:46:24,882 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:46:24,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:46:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1289578809, now seen corresponding path program 11 times [2022-02-10 22:46:24,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:46:24,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489482802] [2022-02-10 22:46:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:46:24,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:46:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:46:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:26,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:46:26,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489482802] [2022-02-10 22:46:26,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489482802] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:46:26,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779331101] [2022-02-10 22:46:26,728 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:46:26,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:46:26,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:46:26,729 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:46:26,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 22:46:26,891 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:46:26,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:46:26,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 96 conjunts are in the unsatisfiable core [2022-02-10 22:46:26,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:46:26,940 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 [2022-02-10 22:46:27,002 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-10 22:46:27,002 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 18 [2022-02-10 22:46:27,064 INFO L353 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-02-10 22:46:27,065 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-02-10 22:46:27,926 INFO L353 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-02-10 22:46:27,926 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 50 [2022-02-10 22:46:29,931 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-02-10 22:46:29,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 35 [2022-02-10 22:46:30,370 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-10 22:46:31,501 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-02-10 22:46:31,755 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 [2022-02-10 22:46:32,036 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-02-10 22:46:32,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:46:32,940 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 22:46:32,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 47 treesize of output 21 [2022-02-10 22:46:33,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:46:33,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:46:36,673 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:46:36,674 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 239 treesize of output 167 [2022-02-10 22:46:36,786 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-02-10 22:46:36,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50206 treesize of output 47214 [2022-02-10 22:46:37,027 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:46:37,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47118 treesize of output 37950 [2022-02-10 22:46:37,205 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:46:37,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37854 treesize of output 35634 [2022-02-10 22:46:37,437 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:46:37,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35538 treesize of output 31002 [2022-02-10 22:46:37,572 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-02-10 22:46:37,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 22:46:37,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-10 22:46:37,787 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:611) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:64) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:308) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-10 22:46:37,792 INFO L158 Benchmark]: Toolchain (without parser) took 96726.34ms. Allocated memory was 191.9MB in the beginning and 853.5MB in the end (delta: 661.7MB). Free memory was 137.6MB in the beginning and 471.8MB in the end (delta: -334.2MB). Peak memory consumption was 582.5MB. Max. memory is 8.0GB. [2022-02-10 22:46:37,792 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 154.2MB in the beginning and 154.0MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:46:37,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.55ms. Allocated memory was 191.9MB in the beginning and 240.1MB in the end (delta: 48.2MB). Free memory was 137.5MB in the beginning and 212.2MB in the end (delta: -74.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-10 22:46:37,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.03ms. Allocated memory is still 240.1MB. Free memory was 212.2MB in the beginning and 209.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-10 22:46:37,792 INFO L158 Benchmark]: Boogie Preprocessor took 19.58ms. Allocated memory is still 240.1MB. Free memory was 209.5MB in the beginning and 208.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:46:37,792 INFO L158 Benchmark]: RCFGBuilder took 497.90ms. Allocated memory is still 240.1MB. Free memory was 208.0MB in the beginning and 179.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-10 22:46:37,793 INFO L158 Benchmark]: TraceAbstraction took 95881.35ms. Allocated memory was 240.1MB in the beginning and 853.5MB in the end (delta: 613.4MB). Free memory was 179.1MB in the beginning and 471.8MB in the end (delta: -292.7MB). Peak memory consumption was 576.1MB. Max. memory is 8.0GB. [2022-02-10 22:46:37,793 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 191.9MB. Free memory was 154.2MB in the beginning and 154.0MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 278.55ms. Allocated memory was 191.9MB in the beginning and 240.1MB in the end (delta: 48.2MB). Free memory was 137.5MB in the beginning and 212.2MB in the end (delta: -74.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.03ms. Allocated memory is still 240.1MB. Free memory was 212.2MB in the beginning and 209.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.58ms. Allocated memory is still 240.1MB. Free memory was 209.5MB in the beginning and 208.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 497.90ms. Allocated memory is still 240.1MB. Free memory was 208.0MB in the beginning and 179.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 95881.35ms. Allocated memory was 240.1MB in the beginning and 853.5MB in the end (delta: 613.4MB). Free memory was 179.1MB in the beginning and 471.8MB in the end (delta: -292.7MB). Peak memory consumption was 576.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-10 22:46:37,854 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...