/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/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 18:01:34,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 18:01:34,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 18:01:34,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 18:01:34,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 18:01:34,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 18:01:34,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 18:01:34,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 18:01:34,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 18:01:34,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 18:01:34,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 18:01:34,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 18:01:34,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 18:01:34,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 18:01:34,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 18:01:34,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 18:01:34,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 18:01:34,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 18:01:34,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 18:01:34,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 18:01:34,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 18:01:34,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 18:01:34,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 18:01:34,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 18:01:34,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-16 18:01:34,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-16 18:01:34,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-16 18:01:34,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-16 18:01:34,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-16 18:01:34,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-16 18:01:34,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 18:01:34,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 18:01:34,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 18:01:34,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 18:01:34,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 18:01:34,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 18:01:34,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 18:01:34,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 18:01:34,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 18:01:34,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 18:01:34,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 18:01:34,638 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 [2022-03-16 18:01:34,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 18:01:34,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 18:01:34,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 18:01:34,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 18:01:34,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 18:01:34,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 18:01:34,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 18:01:34,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 18:01:34,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 18:01:34,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 18:01:34,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 18:01:34,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 18:01:34,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 18:01:34,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 18:01:34,676 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 18:01:34,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 18:01:34,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 18:01:34,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 18:01:34,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 18:01:34,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 18:01:34,912 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 18:01:34,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2022-03-16 18:01:34,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d2c620a/1da0fad9aada4145b7d5b522108f49b9/FLAGfe4f94dbb [2022-03-16 18:01:35,413 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 18:01:35,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2022-03-16 18:01:35,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d2c620a/1da0fad9aada4145b7d5b522108f49b9/FLAGfe4f94dbb [2022-03-16 18:01:35,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d2c620a/1da0fad9aada4145b7d5b522108f49b9 [2022-03-16 18:01:35,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 18:01:35,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 18:01:35,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 18:01:35,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 18:01:35,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 18:01:35,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:01:35" (1/1) ... [2022-03-16 18:01:35,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754ff3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:35, skipping insertion in model container [2022-03-16 18:01:35,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:01:35" (1/1) ... [2022-03-16 18:01:35,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 18:01:35,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 18:01:36,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c[2410,2423] [2022-03-16 18:01:36,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 18:01:36,102 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 18:01:36,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c[2410,2423] [2022-03-16 18:01:36,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 18:01:36,130 INFO L208 MainTranslator]: Completed translation [2022-03-16 18:01:36,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36 WrapperNode [2022-03-16 18:01:36,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 18:01:36,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 18:01:36,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 18:01:36,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 18:01:36,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,162 INFO L137 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-03-16 18:01:36,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 18:01:36,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 18:01:36,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 18:01:36,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 18:01:36,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 18:01:36,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 18:01:36,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 18:01:36,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 18:01:36,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (1/1) ... [2022-03-16 18:01:36,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 18:01:36,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 18:01:36,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 18:01:36,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 18:01:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 18:01:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 18:01:36,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 18:01:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 18:01:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 18:01:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 18:01:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 18:01:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 18:01:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-16 18:01:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-16 18:01:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 18:01:36,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 18:01:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 18:01:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 18:01:36,262 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 18:01:36,322 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 18:01:36,323 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 18:01:36,480 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 18:01:36,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 18:01:36,497 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-16 18:01:36,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:01:36 BoogieIcfgContainer [2022-03-16 18:01:36,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 18:01:36,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 18:01:36,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 18:01:36,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 18:01:36,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 06:01:35" (1/3) ... [2022-03-16 18:01:36,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6810f9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:01:36, skipping insertion in model container [2022-03-16 18:01:36,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:01:36" (2/3) ... [2022-03-16 18:01:36,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6810f9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:01:36, skipping insertion in model container [2022-03-16 18:01:36,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:01:36" (3/3) ... [2022-03-16 18:01:36,505 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2022-03-16 18:01:36,508 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 18:01:36,508 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 18:01:36,509 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 18:01:36,509 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 18:01:36,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,539 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,542 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,543 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,546 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 18:01:36,550 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 18:01:36,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 18:01:36,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 18:01:36,582 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) [2022-03-16 18:01:36,583 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 [2022-03-16 18:01:36,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 18:01:36,610 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 [2022-03-16 18:01:36,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 18:01:37,042 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 108 transitions and produced 109 states. [2022-03-16 18:01:37,045 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:37,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:37,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1492245706, now seen corresponding path program 1 times [2022-03-16 18:01:37,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:37,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453192549] [2022-03-16 18:01:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:37,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 18:01:37,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:37,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453192549] [2022-03-16 18:01:37,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453192549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 18:01:37,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 18:01:37,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 18:01:37,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777915949] [2022-03-16 18:01:37,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 18:01:37,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-16 18:01:37,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:37,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-16 18:01:37,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-16 18:01:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:37,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:37,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 18:01:37,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:37,692 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 108 transitions and produced 109 states. [2022-03-16 18:01:37,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:37,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 18:01:37,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:37,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:37,699 INFO L85 PathProgramCache]: Analyzing trace with hash -91845648, now seen corresponding path program 1 times [2022-03-16 18:01:37,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:37,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088473778] [2022-03-16 18:01:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:37,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 18:01:37,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:37,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088473778] [2022-03-16 18:01:37,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088473778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 18:01:37,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 18:01:37,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 18:01:37,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944517254] [2022-03-16 18:01:37,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 18:01:37,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 18:01:37,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:37,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 18:01:37,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 18:01:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:37,903 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:37,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 18:01:37,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:37,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:38,469 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 145 transitions and produced 146 states. [2022-03-16 18:01:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:38,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 18:01:38,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:38,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:38,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1627471592, now seen corresponding path program 1 times [2022-03-16 18:01:38,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:38,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798461422] [2022-03-16 18:01:38,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:38,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-16 18:01:38,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:38,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798461422] [2022-03-16 18:01:38,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798461422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 18:01:38,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 18:01:38,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 18:01:38,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579675161] [2022-03-16 18:01:38,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 18:01:38,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 18:01:38,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:38,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 18:01:38,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 18:01:38,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:38,546 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:38,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 18:01:38,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:38,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:38,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,073 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 166 transitions and produced 167 states. [2022-03-16 18:01:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-16 18:01:39,076 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:39,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:39,077 INFO L85 PathProgramCache]: Analyzing trace with hash 851856496, now seen corresponding path program 1 times [2022-03-16 18:01:39,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:39,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103892898] [2022-03-16 18:01:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:39,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-16 18:01:39,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:39,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103892898] [2022-03-16 18:01:39,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103892898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 18:01:39,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 18:01:39,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-16 18:01:39,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569852149] [2022-03-16 18:01:39,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 18:01:39,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-16 18:01:39,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:39,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-16 18:01:39,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-16 18:01:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,269 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:39,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 18:01:39,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,561 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 190 transitions and produced 191 states. [2022-03-16 18:01:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:39,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-16 18:01:39,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:39,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1553588947, now seen corresponding path program 1 times [2022-03-16 18:01:39,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:39,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235823436] [2022-03-16 18:01:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:39,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 18:01:39,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:39,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235823436] [2022-03-16 18:01:39,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235823436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 18:01:39,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 18:01:39,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-16 18:01:39,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24063996] [2022-03-16 18:01:39,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 18:01:39,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-16 18:01:39,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:39,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-16 18:01:39,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-16 18:01:39,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,721 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:39,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 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) [2022-03-16 18:01:39,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:39,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:39,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:39,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:40,196 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 205 states. [2022-03-16 18:01:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:40,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-16 18:01:40,199 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 501930793, now seen corresponding path program 1 times [2022-03-16 18:01:40,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:40,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435464768] [2022-03-16 18:01:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:40,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 18:01:40,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:40,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435464768] [2022-03-16 18:01:40,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435464768] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 18:01:40,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541920703] [2022-03-16 18:01:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:40,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 18:01:40,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 18:01:40,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 18:01:40,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 18:01:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:40,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-16 18:01:40,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 18:01:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 18:01:40,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 18:01:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 18:01:41,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541920703] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 18:01:41,113 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 18:01:41,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2022-03-16 18:01:41,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173433960] [2022-03-16 18:01:41,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 18:01:41,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-16 18:01:41,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:41,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-16 18:01:41,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-16 18:01:41,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:41,116 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:41,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 18:01:41,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:41,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:41,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:41,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:41,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:41,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:41,941 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 341 transitions and produced 342 states. [2022-03-16 18:01:41,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-16 18:01:41,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 18:01:42,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-03-16 18:01:42,168 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 18:01:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 18:01:42,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2094000957, now seen corresponding path program 2 times [2022-03-16 18:01:42,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 18:01:42,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262927639] [2022-03-16 18:01:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 18:01:42,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 18:01:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 18:01:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 18:01:42,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 18:01:42,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262927639] [2022-03-16 18:01:42,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262927639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 18:01:42,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 18:01:42,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 18:01:42,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351044464] [2022-03-16 18:01:42,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 18:01:42,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 18:01:42,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 18:01:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 18:01:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 18:01:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:42,343 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 18:01:42,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 18:01:42,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 18:01:42,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:42,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 18:01:42,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:42,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 18:01:42,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-16 18:01:42,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.