/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-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/NonAtomicIncrement_2Threads.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:02:32,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:02:32,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:02:32,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 03:02:32,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 03:02:32,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 03:02:32,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 03:02:32,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 03:02:32,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 03:02:32,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 03:02:32,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 03:02:32,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 03:02:32,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:02:32,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:02:32,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:02:32,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:02:32,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:02:32,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:02:32,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:02:32,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:02:33,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:02:33,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:02:33,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:02:33,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:02:33,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 03:02:33,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 03:02:33,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 03:02:33,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 03:02:33,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 03:02:33,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 03:02:33,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 03:02:33,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 03:02:33,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 03:02:33,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 03:02:33,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 03:02:33,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 03:02:33,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 03:02:33,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 03:02:33,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:02:33,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:02:33,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:02:33,014 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-MCRwithDepranks-Lazy.epf [2022-02-20 03:02:33,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:02:33,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:02:33,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:02:33,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:02:33,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:02:33,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:02:33,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:02:33,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:02:33,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:02:33,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:02:33,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:02:33,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:02:33,036 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:02:33,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:02:33,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:02:33,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:02:33,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:02:33,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 03:02:33,247 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 03:02:33,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/NonAtomicIncrement_2Threads.c [2022-02-20 03:02:33,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c481e386d/659a96d6fa45445da2c18fbbaad73d53/FLAGc1431b15d [2022-02-20 03:02:33,610 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 03:02:33,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/NonAtomicIncrement_2Threads.c [2022-02-20 03:02:33,611 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:02:33,611 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:02:33,611 WARN L117 ultiparseSymbolTable]: System include stdbool.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:02:33,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c481e386d/659a96d6fa45445da2c18fbbaad73d53/FLAGc1431b15d [2022-02-20 03:02:33,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c481e386d/659a96d6fa45445da2c18fbbaad73d53 [2022-02-20 03:02:33,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:02:33,662 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 03:02:33,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 03:02:33,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 03:02:33,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 03:02:33,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b47b7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33, skipping insertion in model container [2022-02-20 03:02:33,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 03:02:33,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 03:02:33,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:02:33,809 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 03:02:33,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:02:33,825 INFO L208 MainTranslator]: Completed translation [2022-02-20 03:02:33,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33 WrapperNode [2022-02-20 03:02:33,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 03:02:33,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:02:33,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:02:33,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:02:33,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,846 INFO L137 Inliner]: procedures = 9, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2022-02-20 03:02:33,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:02:33,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:02:33,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:02:33,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:02:33,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:02:33,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:02:33,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:02:33,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:02:33,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (1/1) ... [2022-02-20 03:02:33,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:02:33,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:33,894 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) [2022-02-20 03:02:33,907 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 [2022-02-20 03:02:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 03:02:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:02:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:02:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 03:02:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure secondIncrement [2022-02-20 03:02:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure secondIncrement [2022-02-20 03:02:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure firstIncrement [2022-02-20 03:02:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure firstIncrement [2022-02-20 03:02:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 03:02:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 03:02:33,934 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:02:33,978 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:02:33,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:02:34,070 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:02:34,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:02:34,075 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 03:02:34,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:02:34 BoogieIcfgContainer [2022-02-20 03:02:34,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:02:34,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:02:34,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:02:34,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:02:34,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 03:02:33" (1/3) ... [2022-02-20 03:02:34,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b09caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:02:34, skipping insertion in model container [2022-02-20 03:02:34,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:02:33" (2/3) ... [2022-02-20 03:02:34,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b09caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:02:34, skipping insertion in model container [2022-02-20 03:02:34,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:02:34" (3/3) ... [2022-02-20 03:02:34,081 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.c [2022-02-20 03:02:34,084 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:02:34,084 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:02:34,085 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:02:34,085 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:02:34,106 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,106 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,106 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,106 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,107 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,107 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,107 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,108 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,108 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,108 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,108 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,108 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,109 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,109 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,109 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,109 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,109 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,109 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,110 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,110 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,110 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,110 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,110 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,111 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,111 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,111 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,111 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,111 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,112 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,112 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,112 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,112 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,112 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,113 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,113 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,113 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,113 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,113 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,114 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,114 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,114 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,114 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,114 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,114 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,117 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,117 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~localx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,117 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,117 WARN L322 ript$VariableManager]: TermVariabe |firstIncrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,117 WARN L322 ript$VariableManager]: TermVariabe firstIncrementThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,135 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,136 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,136 WARN L322 ript$VariableManager]: TermVariabe |secondIncrementThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,138 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~localx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,138 WARN L322 ript$VariableManager]: TermVariabe secondIncrementThread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:02:34,143 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-20 03:02:34,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:02:34,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:34,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:02:34,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:02:34,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:02:34,216 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 03:02:34,216 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 03:02:34,254 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 59 transitions and produced 60 states. [2022-02-20 03:02:34,255 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:34,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash 403930220, now seen corresponding path program 1 times [2022-02-20 03:02:34,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:34,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634609182] [2022-02-20 03:02:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:34,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:02:34,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:34,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634609182] [2022-02-20 03:02:34,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634609182] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:02:34,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:02:34,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 03:02:34,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353526537] [2022-02-20 03:02:34,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:02:34,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 03:02:34,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 03:02:34,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 03:02:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,403 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:34,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2022-02-20 03:02:34,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,420 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 59 transitions and produced 60 states. [2022-02-20 03:02:34,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 03:02:34,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:34,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2019144022, now seen corresponding path program 1 times [2022-02-20 03:02:34,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:34,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234220624] [2022-02-20 03:02:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:34,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:02:34,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:34,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234220624] [2022-02-20 03:02:34,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234220624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:02:34,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:02:34,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 03:02:34,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244052027] [2022-02-20 03:02:34,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:02:34,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 03:02:34,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:34,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 03:02:34,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 03:02:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,470 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:34,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-02-20 03:02:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,493 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 73 transitions and produced 74 states. [2022-02-20 03:02:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:34,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 03:02:34,494 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:34,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1699411922, now seen corresponding path program 1 times [2022-02-20 03:02:34,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:34,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755641925] [2022-02-20 03:02:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:34,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:02:34,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:34,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755641925] [2022-02-20 03:02:34,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755641925] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:02:34,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965359401] [2022-02-20 03:02:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:34,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:34,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:34,573 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) [2022-02-20 03:02:34,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:02:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:34,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-20 03:02:34,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:02:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-20 03:02:34,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 03:02:34,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965359401] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:02:34,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-20 03:02:34,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-20 03:02:34,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047789536] [2022-02-20 03:02:34,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:02:34,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 03:02:34,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:34,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 03:02:34,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-20 03:02:34,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,781 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:34,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:02:34,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:34,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,821 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 81 transitions and produced 82 states. [2022-02-20 03:02:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:34,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 03:02:35,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-20 03:02:35,040 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1626615442, now seen corresponding path program 1 times [2022-02-20 03:02:35,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:35,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288401945] [2022-02-20 03:02:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-20 03:02:35,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:35,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288401945] [2022-02-20 03:02:35,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288401945] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:02:35,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114703886] [2022-02-20 03:02:35,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:35,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:35,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:35,129 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) [2022-02-20 03:02:35,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 03:02:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:35,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 03:02:35,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:02:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-20 03:02:35,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:02:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-20 03:02:35,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114703886] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:02:35,445 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:02:35,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-20 03:02:35,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972499890] [2022-02-20 03:02:35,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:02:35,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-20 03:02:35,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-20 03:02:35,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-20 03:02:35,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:35,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:35,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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) [2022-02-20 03:02:35,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:35,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:35,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:35,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:35,540 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 109 transitions and produced 110 states. [2022-02-20 03:02:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:35,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 03:02:35,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:35,759 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:35,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash -766401894, now seen corresponding path program 2 times [2022-02-20 03:02:35,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:35,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617290428] [2022-02-20 03:02:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-20 03:02:35,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:35,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617290428] [2022-02-20 03:02:35,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617290428] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:02:35,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883901783] [2022-02-20 03:02:35,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 03:02:35,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:35,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:35,830 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) [2022-02-20 03:02:35,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 03:02:35,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 03:02:35,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:02:35,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 03:02:35,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:02:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-20 03:02:35,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:02:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-20 03:02:36,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883901783] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:02:36,089 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:02:36,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-20 03:02:36,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349317248] [2022-02-20 03:02:36,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:02:36,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-20 03:02:36,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-20 03:02:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-20 03:02:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,091 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:36,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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) [2022-02-20 03:02:36,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,148 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 126 states. [2022-02-20 03:02:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 03:02:36,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:36,367 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash 830100066, now seen corresponding path program 3 times [2022-02-20 03:02:36,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:36,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430749316] [2022-02-20 03:02:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-20 03:02:36,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:36,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430749316] [2022-02-20 03:02:36,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430749316] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:02:36,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918233660] [2022-02-20 03:02:36,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 03:02:36,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:36,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:36,459 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) [2022-02-20 03:02:36,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 03:02:36,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-20 03:02:36,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:02:36,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-20 03:02:36,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:02:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-20 03:02:36,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:02:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-20 03:02:36,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918233660] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:02:36,765 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:02:36,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-20 03:02:36,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195929801] [2022-02-20 03:02:36,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:02:36,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-20 03:02:36,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-20 03:02:36,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-02-20 03:02:36,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,768 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:36,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 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) [2022-02-20 03:02:36,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,969 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 155 transitions and produced 156 states. [2022-02-20 03:02:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 03:02:36,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 03:02:37,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:37,187 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:37,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:37,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1363298386, now seen corresponding path program 4 times [2022-02-20 03:02:37,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:37,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308847069] [2022-02-20 03:02:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:37,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-20 03:02:37,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:37,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308847069] [2022-02-20 03:02:37,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308847069] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:02:37,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417067769] [2022-02-20 03:02:37,297 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 03:02:37,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:37,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:37,298 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) [2022-02-20 03:02:37,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 03:02:37,344 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 03:02:37,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:02:37,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-20 03:02:37,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:02:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-20 03:02:37,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:02:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-20 03:02:37,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417067769] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:02:37,625 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:02:37,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2022-02-20 03:02:37,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646413648] [2022-02-20 03:02:37,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:02:37,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-20 03:02:37,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:37,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-20 03:02:37,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-02-20 03:02:37,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:37,626 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:37,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 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) [2022-02-20 03:02:37,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:37,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:37,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 03:02:37,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:37,715 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 169 transitions and produced 170 states. [2022-02-20 03:02:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 03:02:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-20 03:02:37,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 03:02:37,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:37,938 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:02:37,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:02:37,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1818469938, now seen corresponding path program 5 times [2022-02-20 03:02:37,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:02:37,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671437793] [2022-02-20 03:02:37,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:02:37,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:02:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:02:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 117 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:02:38,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:02:38,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671437793] [2022-02-20 03:02:38,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671437793] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:02:38,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773671151] [2022-02-20 03:02:38,205 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 03:02:38,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:02:38,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:02:38,206 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) [2022-02-20 03:02:38,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 03:02:38,253 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-20 03:02:38,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:02:38,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-20 03:02:38,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:02:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:02:38,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 03:02:38,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773671151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:02:38,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-20 03:02:38,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [22] total 24 [2022-02-20 03:02:38,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262324275] [2022-02-20 03:02:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:02:38,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-20 03:02:38,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:02:38,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-20 03:02:38,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2022-02-20 03:02:38,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:38,457 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:02:38,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.5) internal successors, (99), 23 states have internal predecessors, (99), 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) [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-20 03:02:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:03:03,120 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 745953 transitions and produced 361708 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-20 03:03:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-20 03:03:03,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-20 03:03:03,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:03:03,338 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:03:03,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:03:03,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1701598734, now seen corresponding path program 6 times [2022-02-20 03:03:03,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:03:03,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544799720] [2022-02-20 03:03:03,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:03:03,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:03:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:03:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 98 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:03:03,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:03:03,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544799720] [2022-02-20 03:03:03,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544799720] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:03:03,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442547314] [2022-02-20 03:03:03,548 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 03:03:03,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:03:03,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:03:03,562 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) [2022-02-20 03:03:03,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 03:03:03,631 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-02-20 03:03:03,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:03:03,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-20 03:03:03,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:03:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 109 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:03:03,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:03:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 109 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:03:04,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442547314] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:03:04,196 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:03:04,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 38 [2022-02-20 03:03:04,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224120447] [2022-02-20 03:03:04,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:03:04,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-20 03:03:04,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:03:04,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-20 03:03:04,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2022-02-20 03:03:04,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:03:04,200 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:03:04,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 5.421052631578948) internal successors, (206), 39 states have internal predecessors, (206), 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) [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-20 03:03:04,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.