/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_18.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 10:53:24,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 10:53:24,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 10:53:24,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 10:53:24,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 10:53:24,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 10:53:24,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 10:53:24,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 10:53:24,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 10:53:24,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 10:53:24,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 10:53:24,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 10:53:24,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 10:53:24,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 10:53:24,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 10:53:24,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 10:53:24,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 10:53:24,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 10:53:24,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 10:53:24,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 10:53:24,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 10:53:24,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 10:53:24,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 10:53:24,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 10:53:24,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 10:53:24,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 10:53:24,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 10:53:24,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 10:53:24,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 10:53:24,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 10:53:24,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 10:53:24,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 10:53:24,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 10:53:24,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 10:53:24,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 10:53:24,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 10:53:24,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 10:53:24,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 10:53:24,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 10:53:24,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 10:53:24,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 10:53:24,866 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-MCRwithoutDepranks-Lazy.epf [2022-02-20 10:53:24,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 10:53:24,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 10:53:24,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 10:53:24,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 10:53:24,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 10:53:24,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 10:53:24,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 10:53:24,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 10:53:24,887 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 10:53:24,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 10:53:24,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 10:53:24,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 10:53:24,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 10:53:24,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 10:53:24,890 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 10:53:24,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 10:53:24,891 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 10:53:24,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 10:53:25,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 10:53:25,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 10:53:25,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 10:53:25,090 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 10:53:25,091 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 10:53:25,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_18.bpl [2022-02-20 10:53:25,092 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_18.bpl' [2022-02-20 10:53:25,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 10:53:25,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 10:53:25,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 10:53:25,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 10:53:25,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 10:53:25,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,129 INFO L137 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 10:53:25,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 10:53:25,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 10:53:25,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 10:53:25,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 10:53:25,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 10:53:25,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 10:53:25,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 10:53:25,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 10:53:25,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/1) ... [2022-02-20 10:53:25,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 10:53:25,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:53:25,168 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 10:53:25,180 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 10:53:25,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_16 given in one single declaration [2022-02-20 10:53:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure set_16 [2022-02-20 10:53:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure set_16 [2022-02-20 10:53:25,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_17 given in one single declaration [2022-02-20 10:53:25,202 INFO L130 BoogieDeclarations]: Found specification of procedure set_17 [2022-02-20 10:53:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure set_17 [2022-02-20 10:53:25,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2022-02-20 10:53:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2022-02-20 10:53:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2022-02-20 10:53:25,203 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_15 given in one single declaration [2022-02-20 10:53:25,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_15 [2022-02-20 10:53:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_15 [2022-02-20 10:53:25,204 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-02-20 10:53:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-02-20 10:53:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-02-20 10:53:25,206 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-02-20 10:53:25,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-02-20 10:53:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-02-20 10:53:25,207 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-02-20 10:53:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-02-20 10:53:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-02-20 10:53:25,211 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-02-20 10:53:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-02-20 10:53:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-02-20 10:53:25,211 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-02-20 10:53:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-02-20 10:53:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-02-20 10:53:25,212 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2022-02-20 10:53:25,212 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2022-02-20 10:53:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2022-02-20 10:53:25,213 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 10:53:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 10:53:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 10:53:25,213 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2022-02-20 10:53:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2022-02-20 10:53:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2022-02-20 10:53:25,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-02-20 10:53:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-02-20 10:53:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-02-20 10:53:25,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2022-02-20 10:53:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2022-02-20 10:53:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2022-02-20 10:53:25,214 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-02-20 10:53:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-02-20 10:53:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-02-20 10:53:25,215 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2022-02-20 10:53:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2022-02-20 10:53:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2022-02-20 10:53:25,215 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-02-20 10:53:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-02-20 10:53:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-02-20 10:53:25,215 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2022-02-20 10:53:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2022-02-20 10:53:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2022-02-20 10:53:25,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-02-20 10:53:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-02-20 10:53:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-02-20 10:53:25,217 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 10:53:25,259 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 10:53:25,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 10:53:25,387 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 10:53:25,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 10:53:25,393 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 10:53:25,395 INFO L202 PluginConnector]: Adding new model example_18.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 10:53:25 BoogieIcfgContainer [2022-02-20 10:53:25,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 10:53:25,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 10:53:25,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 10:53:25,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 10:53:25,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:53:25" (1/2) ... [2022-02-20 10:53:25,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4955ba39 and model type example_18.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 10:53:25, skipping insertion in model container [2022-02-20 10:53:25,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_18.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 10:53:25" (2/2) ... [2022-02-20 10:53:25,401 INFO L111 eAbstractionObserver]: Analyzing ICFG example_18.bpl [2022-02-20 10:53:25,404 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 10:53:25,404 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 10:53:25,404 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 10:53:25,404 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 10:53:25,559 INFO L148 ThreadInstanceAdder]: Constructed 324 joinOtherThreadTransitions. [2022-02-20 10:53:25,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 10:53:25,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:53:25,614 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 10:53:25,615 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 10:53:25,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 10:53:25,656 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 10:53:25,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-02-20 10:53:28,022 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:28,024 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1952305427, now seen corresponding path program 1 times [2022-02-20 10:53:28,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:28,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370590580] [2022-02-20 10:53:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:28,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:28,210 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 10:53:28,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:28,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370590580] [2022-02-20 10:53:28,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370590580] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:28,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:28,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:28,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045695682] [2022-02-20 10:53:28,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:28,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:28,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:28,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:28,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:28,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:28,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:28,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:29,911 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:29,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:29,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 10:53:29,913 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:29,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1936652511, now seen corresponding path program 1 times [2022-02-20 10:53:29,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:29,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374511562] [2022-02-20 10:53:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:29,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:30,043 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 10:53:30,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:30,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374511562] [2022-02-20 10:53:30,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374511562] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:30,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:30,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:30,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785233636] [2022-02-20 10:53:30,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:30,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:30,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:30,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:30,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:30,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:30,047 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:30,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:30,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:30,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:31,515 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:31,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 10:53:31,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:31,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:31,517 INFO L85 PathProgramCache]: Analyzing trace with hash 168245583, now seen corresponding path program 1 times [2022-02-20 10:53:31,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:31,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386275224] [2022-02-20 10:53:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:31,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:31,557 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 10:53:31,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:31,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386275224] [2022-02-20 10:53:31,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386275224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:31,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:31,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:31,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474183813] [2022-02-20 10:53:31,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:31,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:31,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:31,559 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:31,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:31,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:31,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:31,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:33,008 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:33,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 10:53:33,010 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:33,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2021406049, now seen corresponding path program 1 times [2022-02-20 10:53:33,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:33,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375924199] [2022-02-20 10:53:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:33,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:33,094 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 10:53:33,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:33,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375924199] [2022-02-20 10:53:33,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375924199] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:33,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:33,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:33,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749341734] [2022-02-20 10:53:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:33,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:33,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:33,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:33,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:33,096 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:33,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:33,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:33,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:33,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:33,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:34,480 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 10:53:34,482 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:34,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:34,484 INFO L85 PathProgramCache]: Analyzing trace with hash 70979825, now seen corresponding path program 1 times [2022-02-20 10:53:34,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:34,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337286774] [2022-02-20 10:53:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:34,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:34,539 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 10:53:34,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:34,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337286774] [2022-02-20 10:53:34,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337286774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:34,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:34,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:34,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096186677] [2022-02-20 10:53:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:34,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:34,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:34,541 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:34,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:34,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:34,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:35,869 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-20 10:53:35,871 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:35,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:35,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1618673765, now seen corresponding path program 1 times [2022-02-20 10:53:35,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:35,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060728481] [2022-02-20 10:53:35,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:35,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:35,902 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 10:53:35,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:35,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060728481] [2022-02-20 10:53:35,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060728481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:35,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:35,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:35,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587249327] [2022-02-20 10:53:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:35,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:35,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:35,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:35,904 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:35,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:35,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:37,188 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-20 10:53:37,189 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:37,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:37,190 INFO L85 PathProgramCache]: Analyzing trace with hash -241368067, now seen corresponding path program 1 times [2022-02-20 10:53:37,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:37,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470488974] [2022-02-20 10:53:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:37,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:37,216 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 10:53:37,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:37,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470488974] [2022-02-20 10:53:37,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470488974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:37,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:37,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:37,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008679392] [2022-02-20 10:53:37,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:37,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:37,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:37,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:37,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:37,218 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:37,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:37,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:37,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:38,498 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-20 10:53:38,499 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:38,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2004492807, now seen corresponding path program 1 times [2022-02-20 10:53:38,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:38,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449920927] [2022-02-20 10:53:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:38,522 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 10:53:38,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:38,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449920927] [2022-02-20 10:53:38,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449920927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:38,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:38,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:38,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192365248] [2022-02-20 10:53:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:38,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:38,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:38,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:38,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:38,524 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:38,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:38,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:38,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:39,826 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-20 10:53:39,827 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash -59907561, now seen corresponding path program 1 times [2022-02-20 10:53:39,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:39,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72711139] [2022-02-20 10:53:39,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:39,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:39,848 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 10:53:39,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:39,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72711139] [2022-02-20 10:53:39,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72711139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:39,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:39,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:39,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707495162] [2022-02-20 10:53:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:39,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:39,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:39,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:39,850 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:39,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:39,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:41,154 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-20 10:53:41,155 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:41,155 INFO L85 PathProgramCache]: Analyzing trace with hash -740287845, now seen corresponding path program 1 times [2022-02-20 10:53:41,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:41,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636384124] [2022-02-20 10:53:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:41,173 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 10:53:41,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:41,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636384124] [2022-02-20 10:53:41,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636384124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:41,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:41,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:41,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329732032] [2022-02-20 10:53:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:41,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:41,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:41,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:41,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:41,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:41,175 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:41,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:41,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:42,551 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-20 10:53:42,553 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:42,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1827080787, now seen corresponding path program 1 times [2022-02-20 10:53:42,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:42,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731816040] [2022-02-20 10:53:42,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:42,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:42,573 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 10:53:42,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:42,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731816040] [2022-02-20 10:53:42,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731816040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:42,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:42,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:42,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182533051] [2022-02-20 10:53:42,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:42,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:42,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:42,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:42,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:42,575 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:42,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:43,929 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-20 10:53:43,931 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:43,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash -946289803, now seen corresponding path program 1 times [2022-02-20 10:53:43,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:43,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966207453] [2022-02-20 10:53:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:43,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:43,959 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 10:53:43,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:43,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966207453] [2022-02-20 10:53:43,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966207453] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:43,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:43,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:43,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562701671] [2022-02-20 10:53:43,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:43,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:43,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:43,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:43,962 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:43,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:43,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:45,351 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-20 10:53:45,353 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:45,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash -693975785, now seen corresponding path program 1 times [2022-02-20 10:53:45,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:45,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064095861] [2022-02-20 10:53:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:45,377 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 10:53:45,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:45,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064095861] [2022-02-20 10:53:45,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064095861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:45,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:45,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:53:45,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573882576] [2022-02-20 10:53:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:45,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:53:45,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:53:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:53:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:45,379 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:45,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:46,744 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 991 transitions and produced 992 states. [2022-02-20 10:53:46,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:46,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-20 10:53:46,746 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 15 more)] === [2022-02-20 10:53:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:53:46,746 INFO L85 PathProgramCache]: Analyzing trace with hash 805932315, now seen corresponding path program 1 times [2022-02-20 10:53:46,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:53:46,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261872982] [2022-02-20 10:53:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:53:46,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:53:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:53:48,778 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 10:53:48,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:53:48,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261872982] [2022-02-20 10:53:48,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261872982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:53:48,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:53:48,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-20 10:53:48,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734381694] [2022-02-20 10:53:48,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:53:48,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-20 10:53:48,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:53:48,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-20 10:53:48,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2022-02-20 10:53:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:53:48,781 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:53:48,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 20 states have internal predecessors, (73), 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 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:53:48,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.