/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-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 06:43:46,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 06:43:46,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 06:43:46,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 06:43:46,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 06:43:46,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 06:43:46,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 06:43:46,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 06:43:46,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 06:43:46,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 06:43:46,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 06:43:46,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 06:43:46,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 06:43:46,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 06:43:46,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 06:43:46,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 06:43:46,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 06:43:46,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 06:43:46,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 06:43:46,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 06:43:46,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 06:43:46,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 06:43:46,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 06:43:46,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 06:43:46,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-09 06:43:46,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-09 06:43:46,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-09 06:43:46,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-09 06:43:46,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-09 06:43:46,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-09 06:43:46,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 06:43:46,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 06:43:46,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 06:43:46,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 06:43:46,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 06:43:46,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 06:43:46,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 06:43:46,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 06:43:46,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 06:43:46,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 06:43:46,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 06:43:46,536 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-POR-NewStatesSleep-NoLbe.epf [2022-02-09 06:43:46,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 06:43:46,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 06:43:46,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 06:43:46,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 06:43:46,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 06:43:46,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 06:43:46,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 06:43:46,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 06:43:46,567 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 06:43:46,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 06:43:46,568 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 06:43:46,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 06:43:46,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 06:43:46,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 06:43:46,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 06:43:46,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 06:43:46,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 06:43:46,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 06:43:46,571 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 06:43:46,572 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 06:43:46,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 06:43:46,572 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-09 06:43:46,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 06:43:46,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 06:43:46,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 06:43:46,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 06:43:46,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 06:43:46,807 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 06:43:46,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-02-09 06:43:46,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170960a7a/c6d97804d1234199a00835c812509b6c/FLAG7d2a605ef [2022-02-09 06:43:47,257 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 06:43:47,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-02-09 06:43:47,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170960a7a/c6d97804d1234199a00835c812509b6c/FLAG7d2a605ef [2022-02-09 06:43:47,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170960a7a/c6d97804d1234199a00835c812509b6c [2022-02-09 06:43:47,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 06:43:47,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 06:43:47,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 06:43:47,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 06:43:47,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 06:43:47,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7618c791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47, skipping insertion in model container [2022-02-09 06:43:47,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 06:43:47,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 06:43:47,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-02-09 06:43:47,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 06:43:47,504 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 06:43:47,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-02-09 06:43:47,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 06:43:47,542 INFO L208 MainTranslator]: Completed translation [2022-02-09 06:43:47,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47 WrapperNode [2022-02-09 06:43:47,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 06:43:47,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 06:43:47,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 06:43:47,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 06:43:47,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,573 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-02-09 06:43:47,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 06:43:47,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 06:43:47,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 06:43:47,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 06:43:47,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 06:43:47,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 06:43:47,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 06:43:47,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 06:43:47,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (1/1) ... [2022-02-09 06:43:47,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 06:43:47,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 06:43:47,619 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) [2022-02-09 06:43:47,625 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 [2022-02-09 06:43:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 06:43:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 06:43:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 06:43:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 06:43:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 06:43:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 06:43:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 06:43:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 06:43:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 06:43:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 06:43:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 06:43:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 06:43:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 06:43:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 06:43:47,650 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 06:43:47,696 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 06:43:47,697 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 06:43:47,882 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 06:43:47,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 06:43:47,943 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-09 06:43:47,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 06:43:47 BoogieIcfgContainer [2022-02-09 06:43:47,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 06:43:47,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 06:43:47,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 06:43:47,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 06:43:47,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 06:43:47" (1/3) ... [2022-02-09 06:43:47,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 06:43:47, skipping insertion in model container [2022-02-09 06:43:47,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 06:43:47" (2/3) ... [2022-02-09 06:43:47,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 06:43:47, skipping insertion in model container [2022-02-09 06:43:47,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 06:43:47" (3/3) ... [2022-02-09 06:43:47,961 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2022-02-09 06:43:47,964 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 06:43:47,964 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 06:43:47,964 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 06:43:47,964 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 06:43:48,010 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,011 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,012 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,012 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,013 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,014 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,020 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,020 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,022 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,022 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,023 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,024 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,025 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,026 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,028 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,029 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,034 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,036 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 06:43:48,043 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 06:43:48,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 06:43:48,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 06:43:48,083 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) [2022-02-09 06:43:48,084 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 [2022-02-09 06:43:48,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 06:43:48,111 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 [2022-02-09 06:43:48,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 06:43:48,174 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 06:43:48,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 06:43:48,179 INFO L85 PathProgramCache]: Analyzing trace with hash 489249638, now seen corresponding path program 1 times [2022-02-09 06:43:48,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 06:43:48,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962794465] [2022-02-09 06:43:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:48,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 06:43:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:43:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:43:48,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 06:43:48,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962794465] [2022-02-09 06:43:48,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962794465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 06:43:48,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 06:43:48,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 06:43:48,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364572679] [2022-02-09 06:43:48,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 06:43:48,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 06:43:48,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 06:43:48,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 06:43:48,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 06:43:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,363 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 06:43:48,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2022-02-09 06:43:48,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 06:43:48,400 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 06:43:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 06:43:48,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1040236633, now seen corresponding path program 1 times [2022-02-09 06:43:48,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 06:43:48,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203871641] [2022-02-09 06:43:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:48,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 06:43:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:43:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:43:48,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 06:43:48,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203871641] [2022-02-09 06:43:48,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203871641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 06:43:48,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 06:43:48,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 06:43:48,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317289375] [2022-02-09 06:43:48,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 06:43:48,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 06:43:48,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 06:43:48,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 06:43:48,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 06:43:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,588 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 06:43:48,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2022-02-09 06:43:48,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:43:48,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 06:43:48,676 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 06:43:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 06:43:48,677 INFO L85 PathProgramCache]: Analyzing trace with hash -894117372, now seen corresponding path program 1 times [2022-02-09 06:43:48,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 06:43:48,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888540204] [2022-02-09 06:43:48,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:48,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 06:43:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:43:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:43:48,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 06:43:48,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888540204] [2022-02-09 06:43:48,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888540204] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 06:43:48,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070664791] [2022-02-09 06:43:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:48,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 06:43:48,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 06:43:48,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 06:43:48,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 06:43:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:43:48,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-09 06:43:48,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 06:43:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 06:43:49,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 06:43:49,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070664791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 06:43:49,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 06:43:49,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-02-09 06:43:49,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566330240] [2022-02-09 06:43:49,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 06:43:49,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 06:43:49,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 06:43:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 06:43:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 06:43:49,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:49,337 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 06:43:49,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2022-02-09 06:43:49,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:49,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:43:49,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:43:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 06:43:49,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 06:43:49,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-09 06:43:49,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 06:43:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 06:43:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2100791182, now seen corresponding path program 1 times [2022-02-09 06:43:49,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 06:43:49,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696660686] [2022-02-09 06:43:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:49,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 06:43:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:43:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:43:50,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 06:43:50,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696660686] [2022-02-09 06:43:50,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696660686] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 06:43:50,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886312759] [2022-02-09 06:43:50,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:50,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 06:43:50,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 06:43:50,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 06:43:50,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 06:43:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:43:50,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 28 conjunts are in the unsatisfiable core [2022-02-09 06:43:50,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 06:43:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:43:51,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 06:43:54,111 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:43:54,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886312759] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 06:43:54,112 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 06:43:54,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 38 [2022-02-09 06:43:54,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351988320] [2022-02-09 06:43:54,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 06:43:54,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-09 06:43:54,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 06:43:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-09 06:43:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1174, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 06:43:54,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:54,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 06:43:54,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 4.2894736842105265) internal successors, (163), 38 states have internal predecessors, (163), 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) [2022-02-09 06:43:54,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:54,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:43:54,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 06:43:54,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:57,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:43:57,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:43:57,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 06:43:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 06:43:57,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 06:43:57,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 06:43:57,557 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 06:43:57,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 06:43:57,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1165466225, now seen corresponding path program 2 times [2022-02-09 06:43:57,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 06:43:57,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681071367] [2022-02-09 06:43:57,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:43:57,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 06:43:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 06:44:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:44:04,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 06:44:04,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681071367] [2022-02-09 06:44:04,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681071367] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 06:44:04,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944683181] [2022-02-09 06:44:04,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 06:44:04,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 06:44:04,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 06:44:04,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 06:44:04,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 06:44:04,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 06:44:04,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 06:44:04,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-09 06:44:04,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 06:44:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:44:09,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 06:44:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 06:44:42,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944683181] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 06:44:42,459 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 06:44:42,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 20] total 46 [2022-02-09 06:44:42,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51985998] [2022-02-09 06:44:42,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 06:44:42,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-09 06:44:42,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 06:44:42,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-09 06:44:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1747, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 06:44:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:44:42,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 06:44:42,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.217391304347826) internal successors, (194), 46 states have internal predecessors, (194), 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) [2022-02-09 06:44:42,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:44:42,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:44:42,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 06:44:42,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 06:44:42,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:45:00,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:05,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:12,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:14,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:20,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:21,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:36,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:38,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:45:40,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:46:55,977 WARN L228 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 217 DAG size of output: 214 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-09 06:47:37,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-09 06:48:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 06:48:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 06:48:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 06:48:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 06:48:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 06:48:28,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 06:48:29,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 06:48:29,077 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 06:48:29,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 06:48:29,078 INFO L85 PathProgramCache]: Analyzing trace with hash 861567087, now seen corresponding path program 3 times [2022-02-09 06:48:29,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 06:48:29,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481774598] [2022-02-09 06:48:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 06:48:29,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 06:48:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-02-09 06:58:20,708 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-09 06:58:20,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 06:58:20,708 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 102 with TraceHistMax 11,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-4-7-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-8-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-7-2-7-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2022-02-09 06:58:20,709 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-09 06:58:20,709 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-09 06:58:20,713 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-02-09 06:58:20,715 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 06:58:20,715 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 06:58:20,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 06:58:20 BasicIcfg [2022-02-09 06:58:20,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 06:58:20,717 INFO L158 Benchmark]: Toolchain (without parser) took 873434.76ms. Allocated memory was 183.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 134.1MB in the beginning and 773.9MB in the end (delta: -639.8MB). Peak memory consumption was 731.0MB. Max. memory is 8.0GB. [2022-02-09 06:58:20,717 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 06:58:20,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.20ms. Allocated memory is still 183.5MB. Free memory was 133.8MB in the beginning and 159.0MB in the end (delta: -25.1MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-02-09 06:58:20,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.84ms. Allocated memory is still 183.5MB. Free memory was 159.0MB in the beginning and 157.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 06:58:20,718 INFO L158 Benchmark]: Boogie Preprocessor took 14.88ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 156.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 06:58:20,718 INFO L158 Benchmark]: RCFGBuilder took 354.87ms. Allocated memory is still 183.5MB. Free memory was 156.4MB in the beginning and 142.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-09 06:58:20,718 INFO L158 Benchmark]: TraceAbstraction took 872770.80ms. Allocated memory was 183.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 142.2MB in the beginning and 773.9MB in the end (delta: -631.7MB). Peak memory consumption was 739.1MB. Max. memory is 8.0GB. [2022-02-09 06:58:20,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 260.20ms. Allocated memory is still 183.5MB. Free memory was 133.8MB in the beginning and 159.0MB in the end (delta: -25.1MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.84ms. Allocated memory is still 183.5MB. Free memory was 159.0MB in the beginning and 157.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.88ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 156.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 354.87ms. Allocated memory is still 183.5MB. Free memory was 156.4MB in the beginning and 142.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 872770.80ms. Allocated memory was 183.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 142.2MB in the beginning and 773.9MB in the end (delta: -631.7MB). Peak memory consumption was 739.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 438, positive: 306, positive conditional: 306, positive unconditional: 0, negative: 132, negative conditional: 132, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 312, positive: 306, positive conditional: 306, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 312, positive: 306, positive conditional: 306, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 327, positive: 306, positive conditional: 218, positive unconditional: 88, negative: 21, negative conditional: 15, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 327, positive: 306, positive conditional: 184, positive unconditional: 122, negative: 21, negative conditional: 9, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 327, positive: 306, positive conditional: 184, positive unconditional: 122, negative: 21, negative conditional: 9, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100, positive: 94, positive conditional: 38, positive unconditional: 56, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 51, negative conditional: 21, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 327, positive: 212, positive conditional: 146, positive unconditional: 66, negative: 15, negative conditional: 5, negative unconditional: 10, unknown: 100, unknown conditional: 42, unknown unconditional: 58] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 94, Positive conditional cache size: 38, Positive unconditional cache size: 56, Negative cache size: 6, Negative conditional cache size: 4, Negative unconditional cache size: 2, Eliminated conditions: 40, Maximal queried relation: 4, Independence queries for same thread: 126 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 102 with TraceHistMax 11,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-4-7-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-8-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-7-2-7-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 102 with TraceHistMax 11,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-4-7-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-8-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-7-2-7-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 102 with TraceHistMax 11,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-4-7-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-4-9-3-9-3-9-3-9-3-9-3-9-3-8-3-8-3-8-3-8-3-8-3-7-3-7-3-7-3-7-3-7-2-7-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances [2022-02-09 06:58:20,724 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end CFG has 5 procedures, 100 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 872.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 230.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 49.2s InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 727 ConstructedInterpolants, 0 QuantifiedInterpolants, 22960 SizeOfPredicates, 34 NumberOfNonLiveVariables, 502 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 1/128 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown