/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-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 22:51:38,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 22:51:38,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 22:51:38,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 22:51:38,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 22:51:38,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 22:51:38,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 22:51:38,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 22:51:38,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 22:51:38,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 22:51:38,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 22:51:38,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 22:51:38,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 22:51:38,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 22:51:38,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 22:51:38,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 22:51:38,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 22:51:38,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 22:51:38,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 22:51:38,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 22:51:38,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 22:51:38,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 22:51:38,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 22:51:38,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 22:51:38,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 22:51:38,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 22:51:38,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 22:51:38,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 22:51:38,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 22:51:38,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 22:51:38,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 22:51:38,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 22:51:38,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 22:51:38,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 22:51:38,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 22:51:38,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 22:51:38,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 22:51:38,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 22:51:38,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 22:51:38,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 22:51:38,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 22:51:38,618 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-PN-SemanticLbe.epf [2022-12-12 22:51:38,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 22:51:38,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 22:51:38,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 22:51:38,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 22:51:38,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 22:51:38,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 22:51:38,645 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 22:51:38,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 22:51:38,645 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 22:51:38,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 22:51:38,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 22:51:38,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:51:38,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 22:51:38,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 22:51:38,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 22:51:38,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 22:51:38,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 22:51:38,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 22:51:38,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 22:51:38,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 22:51:38,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 22:51:38,915 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 22:51:38,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-12 22:51:39,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 22:51:39,983 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 22:51:39,983 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-12 22:51:39,988 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1794cf9a2/0b52a9e6879642498197587f24834550/FLAGbe24a36b3 [2022-12-12 22:51:40,375 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1794cf9a2/0b52a9e6879642498197587f24834550 [2022-12-12 22:51:40,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 22:51:40,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 22:51:40,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 22:51:40,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 22:51:40,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 22:51:40,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1115acf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40, skipping insertion in model container [2022-12-12 22:51:40,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 22:51:40,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 22:51:40,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:51:40,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:51:40,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:51:40,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:51:40,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:51:40,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:51:40,539 WARN L237 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-dot-product-alt.wvr.c[3182,3195] [2022-12-12 22:51:40,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:51:40,561 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 22:51:40,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:51:40,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:51:40,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:51:40,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:51:40,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 22:51:40,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 22:51:40,592 WARN L237 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-dot-product-alt.wvr.c[3182,3195] [2022-12-12 22:51:40,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:51:40,605 INFO L208 MainTranslator]: Completed translation [2022-12-12 22:51:40,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40 WrapperNode [2022-12-12 22:51:40,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 22:51:40,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 22:51:40,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 22:51:40,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 22:51:40,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,658 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 362 [2022-12-12 22:51:40,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 22:51:40,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 22:51:40,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 22:51:40,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 22:51:40,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,713 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 22:51:40,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 22:51:40,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 22:51:40,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 22:51:40,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (1/1) ... [2022-12-12 22:51:40,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:51:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:51:40,752 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) [2022-12-12 22:51:40,773 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 [2022-12-12 22:51:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 22:51:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 22:51:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 22:51:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 22:51:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 22:51:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-12 22:51:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 22:51:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 22:51:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 22:51:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 22:51:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 22:51:40,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 22:51:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 22:51:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 22:51:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 22:51:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 22:51:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 22:51:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 22:51:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 22:51:40,788 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 22:51:40,929 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 22:51:40,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 22:51:41,337 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 22:51:41,455 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 22:51:41,455 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-12 22:51:41,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:51:41 BoogieIcfgContainer [2022-12-12 22:51:41,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 22:51:41,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 22:51:41,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 22:51:41,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 22:51:41,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 10:51:40" (1/3) ... [2022-12-12 22:51:41,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e26d82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:51:41, skipping insertion in model container [2022-12-12 22:51:41,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:51:40" (2/3) ... [2022-12-12 22:51:41,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e26d82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:51:41, skipping insertion in model container [2022-12-12 22:51:41,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:51:41" (3/3) ... [2022-12-12 22:51:41,462 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-12-12 22:51:41,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 22:51:41,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 22:51:41,473 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 22:51:41,544 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 22:51:41,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 323 transitions, 670 flow [2022-12-12 22:51:41,694 INFO L130 PetriNetUnfolder]: 35/320 cut-off events. [2022-12-12 22:51:41,694 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 22:51:41,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 35/320 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 621 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-12 22:51:41,702 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 323 transitions, 670 flow [2022-12-12 22:51:41,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 310 transitions, 638 flow [2022-12-12 22:51:41,712 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 22:51:41,732 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-12 22:51:41,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 310 transitions, 638 flow [2022-12-12 22:51:41,807 INFO L130 PetriNetUnfolder]: 35/310 cut-off events. [2022-12-12 22:51:41,807 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 22:51:41,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 35/310 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 619 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-12 22:51:41,817 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-12 22:51:41,817 INFO L226 LiptonReduction]: Number of co-enabled transitions 11934 [2022-12-12 22:51:51,565 INFO L241 LiptonReduction]: Total number of compositions: 271 [2022-12-12 22:51:51,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 22:51:51,580 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5802b9da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 22:51:51,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 22:51:51,585 INFO L130 PetriNetUnfolder]: 9/39 cut-off events. [2022-12-12 22:51:51,585 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 22:51:51,585 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:51,586 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:51,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:51,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:51,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1957612998, now seen corresponding path program 1 times [2022-12-12 22:51:51,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:51,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638537358] [2022-12-12 22:51:51,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:51,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:51:52,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:52,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638537358] [2022-12-12 22:51:52,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638537358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:51:52,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:51:52,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:51:52,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404258481] [2022-12-12 22:51:52,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:51:52,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:51:52,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:51:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:51:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:51:52,155 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 40 [2022-12-12 22:51:52,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2022-12-12 22:51:52,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:51:52,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 40 [2022-12-12 22:51:52,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:51:52,427 INFO L130 PetriNetUnfolder]: 1384/1850 cut-off events. [2022-12-12 22:51:52,427 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2022-12-12 22:51:52,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3839 conditions, 1850 events. 1384/1850 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6927 event pairs, 793 based on Foata normal form. 0/1259 useless extension candidates. Maximal degree in co-relation 3453. Up to 1837 conditions per place. [2022-12-12 22:51:52,436 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 36 selfloop transitions, 4 changer transitions 7/49 dead transitions. [2022-12-12 22:51:52,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 210 flow [2022-12-12 22:51:52,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:51:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:51:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2022-12-12 22:51:52,445 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35 [2022-12-12 22:51:52,447 INFO L295 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2022-12-12 22:51:52,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 49 transitions, 210 flow [2022-12-12 22:51:52,454 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 42 transitions, 182 flow [2022-12-12 22:51:52,455 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 182 flow [2022-12-12 22:51:52,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2022-12-12 22:51:52,456 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:52,456 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:52,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 22:51:52,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:52,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:52,456 INFO L85 PathProgramCache]: Analyzing trace with hash -889380534, now seen corresponding path program 1 times [2022-12-12 22:51:52,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:52,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378065200] [2022-12-12 22:51:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:52,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:52,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:52,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378065200] [2022-12-12 22:51:52,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378065200] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 22:51:52,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117074202] [2022-12-12 22:51:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:52,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 22:51:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:51:52,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 22:51:52,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 22:51:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:52,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 22:51:52,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 22:51:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:52,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 22:51:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:52,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117074202] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 22:51:52,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 22:51:52,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-12 22:51:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867572333] [2022-12-12 22:51:52,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:51:52,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:51:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:51:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:51:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-12 22:51:52,819 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 40 [2022-12-12 22:51:52,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-12 22:51:52,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:51:52,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 40 [2022-12-12 22:51:52,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:51:53,062 INFO L130 PetriNetUnfolder]: 1492/2013 cut-off events. [2022-12-12 22:51:53,062 INFO L131 PetriNetUnfolder]: For 184/185 co-relation queries the response was YES. [2022-12-12 22:51:53,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6018 conditions, 2013 events. 1492/2013 cut-off events. For 184/185 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7239 event pairs, 541 based on Foata normal form. 1/1430 useless extension candidates. Maximal degree in co-relation 5519. Up to 1958 conditions per place. [2022-12-12 22:51:53,074 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2022-12-12 22:51:53,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 364 flow [2022-12-12 22:51:53,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 22:51:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 22:51:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-12 22:51:53,078 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.33 [2022-12-12 22:51:53,078 INFO L295 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2022-12-12 22:51:53,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 58 transitions, 364 flow [2022-12-12 22:51:53,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 58 transitions, 364 flow [2022-12-12 22:51:53,089 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 58 transitions, 364 flow [2022-12-12 22:51:53,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-12 22:51:53,091 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:53,091 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:53,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-12 22:51:53,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 22:51:53,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:53,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:53,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2072498645, now seen corresponding path program 1 times [2022-12-12 22:51:53,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:53,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190316931] [2022-12-12 22:51:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:53,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:53,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:53,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190316931] [2022-12-12 22:51:53,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190316931] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 22:51:53,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686322804] [2022-12-12 22:51:53,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:53,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 22:51:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:51:53,477 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) [2022-12-12 22:51:53,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 22:51:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:53,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-12 22:51:53,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 22:51:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 22:51:53,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 22:51:53,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686322804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:51:53,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 22:51:53,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-12-12 22:51:53,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189104509] [2022-12-12 22:51:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:51:53,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:51:53,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:51:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:51:53,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-12 22:51:53,643 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-12 22:51:53,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 58 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2022-12-12 22:51:53,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:51:53,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-12 22:51:53,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:51:53,990 INFO L130 PetriNetUnfolder]: 1922/2617 cut-off events. [2022-12-12 22:51:53,990 INFO L131 PetriNetUnfolder]: For 826/831 co-relation queries the response was YES. [2022-12-12 22:51:53,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10256 conditions, 2617 events. 1922/2617 cut-off events. For 826/831 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11267 event pairs, 460 based on Foata normal form. 63/1950 useless extension candidates. Maximal degree in co-relation 9574. Up to 2562 conditions per place. [2022-12-12 22:51:54,001 INFO L137 encePairwiseOnDemand]: 36/40 looper letters, 53 selfloop transitions, 0 changer transitions 46/102 dead transitions. [2022-12-12 22:51:54,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 102 transitions, 844 flow [2022-12-12 22:51:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 22:51:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 22:51:54,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2022-12-12 22:51:54,002 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.485 [2022-12-12 22:51:54,003 INFO L295 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2022-12-12 22:51:54,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 102 transitions, 844 flow [2022-12-12 22:51:54,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 56 transitions, 458 flow [2022-12-12 22:51:54,012 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 56 transitions, 458 flow [2022-12-12 22:51:54,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2022-12-12 22:51:54,012 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:54,012 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:54,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 22:51:54,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-12 22:51:54,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:54,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash -881910597, now seen corresponding path program 1 times [2022-12-12 22:51:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:54,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16812795] [2022-12-12 22:51:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:54,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:54,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:54,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16812795] [2022-12-12 22:51:54,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16812795] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 22:51:54,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687079311] [2022-12-12 22:51:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:54,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 22:51:54,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:51:54,350 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) [2022-12-12 22:51:54,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 22:51:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:54,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-12 22:51:54,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 22:51:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:54,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 22:51:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:54,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687079311] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 22:51:54,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 22:51:54,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2022-12-12 22:51:54,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89919544] [2022-12-12 22:51:54,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:51:54,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 22:51:54,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:51:54,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 22:51:54,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-12-12 22:51:54,573 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 40 [2022-12-12 22:51:54,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 56 transitions, 458 flow. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2022-12-12 22:51:54,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:51:54,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 40 [2022-12-12 22:51:54,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:51:54,972 INFO L130 PetriNetUnfolder]: 2081/2914 cut-off events. [2022-12-12 22:51:54,972 INFO L131 PetriNetUnfolder]: For 2331/2339 co-relation queries the response was YES. [2022-12-12 22:51:54,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14013 conditions, 2914 events. 2081/2914 cut-off events. For 2331/2339 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 11616 event pairs, 232 based on Foata normal form. 8/2298 useless extension candidates. Maximal degree in co-relation 12971. Up to 2764 conditions per place. [2022-12-12 22:51:54,985 INFO L137 encePairwiseOnDemand]: 30/40 looper letters, 113 selfloop transitions, 23 changer transitions 0/137 dead transitions. [2022-12-12 22:51:54,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 137 transitions, 1395 flow [2022-12-12 22:51:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 22:51:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 22:51:54,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 105 transitions. [2022-12-12 22:51:54,986 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.328125 [2022-12-12 22:51:54,987 INFO L295 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2022-12-12 22:51:54,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 137 transitions, 1395 flow [2022-12-12 22:51:54,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 137 transitions, 1395 flow [2022-12-12 22:51:54,996 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 137 transitions, 1395 flow [2022-12-12 22:51:54,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2022-12-12 22:51:54,997 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:54,997 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:55,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-12 22:51:55,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 22:51:55,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:55,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:55,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1397264460, now seen corresponding path program 1 times [2022-12-12 22:51:55,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:55,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969100729] [2022-12-12 22:51:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:55,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 22:51:55,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:55,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969100729] [2022-12-12 22:51:55,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969100729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:51:55,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:51:55,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:51:55,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921441842] [2022-12-12 22:51:55,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:51:55,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:51:55,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:51:55,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:51:55,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:51:55,310 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-12 22:51:55,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 137 transitions, 1395 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:51:55,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:51:55,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-12 22:51:55,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:51:55,798 INFO L130 PetriNetUnfolder]: 3178/4504 cut-off events. [2022-12-12 22:51:55,798 INFO L131 PetriNetUnfolder]: For 9736/9780 co-relation queries the response was YES. [2022-12-12 22:51:55,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25609 conditions, 4504 events. 3178/4504 cut-off events. For 9736/9780 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20667 event pairs, 208 based on Foata normal form. 227/3823 useless extension candidates. Maximal degree in co-relation 15228. Up to 4273 conditions per place. [2022-12-12 22:51:55,816 INFO L137 encePairwiseOnDemand]: 35/40 looper letters, 132 selfloop transitions, 3 changer transitions 106/246 dead transitions. [2022-12-12 22:51:55,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 246 transitions, 3012 flow [2022-12-12 22:51:55,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 22:51:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 22:51:55,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2022-12-12 22:51:55,818 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.395 [2022-12-12 22:51:55,820 INFO L295 CegarLoopForPetriNet]: 41 programPoint places, 18 predicate places. [2022-12-12 22:51:55,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 246 transitions, 3012 flow [2022-12-12 22:51:55,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 140 transitions, 1695 flow [2022-12-12 22:51:55,834 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 140 transitions, 1695 flow [2022-12-12 22:51:55,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:51:55,834 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:55,835 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:55,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 22:51:55,835 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:55,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash 379306372, now seen corresponding path program 1 times [2022-12-12 22:51:55,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:55,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867029780] [2022-12-12 22:51:55,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:55,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 22:51:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:56,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867029780] [2022-12-12 22:51:56,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867029780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:51:56,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:51:56,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:51:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185998036] [2022-12-12 22:51:56,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:51:56,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:51:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:51:56,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:51:56,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:51:56,017 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-12 22:51:56,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 140 transitions, 1695 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2022-12-12 22:51:56,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:51:56,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-12 22:51:56,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:51:56,627 INFO L130 PetriNetUnfolder]: 4166/5989 cut-off events. [2022-12-12 22:51:56,627 INFO L131 PetriNetUnfolder]: For 18617/18641 co-relation queries the response was YES. [2022-12-12 22:51:56,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38992 conditions, 5989 events. 4166/5989 cut-off events. For 18617/18641 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 29009 event pairs, 388 based on Foata normal form. 362/5172 useless extension candidates. Maximal degree in co-relation 17809. Up to 5677 conditions per place. [2022-12-12 22:51:56,647 INFO L137 encePairwiseOnDemand]: 31/40 looper letters, 128 selfloop transitions, 9 changer transitions 220/362 dead transitions. [2022-12-12 22:51:56,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 362 transitions, 5163 flow [2022-12-12 22:51:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 22:51:56,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 22:51:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2022-12-12 22:51:56,649 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.555 [2022-12-12 22:51:56,649 INFO L295 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2022-12-12 22:51:56,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 362 transitions, 5163 flow [2022-12-12 22:51:56,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 142 transitions, 1993 flow [2022-12-12 22:51:56,668 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 142 transitions, 1993 flow [2022-12-12 22:51:56,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2022-12-12 22:51:56,668 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:51:56,668 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:51:56,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 22:51:56,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 22:51:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:51:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1032186445, now seen corresponding path program 1 times [2022-12-12 22:51:56,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:51:56,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840605829] [2022-12-12 22:51:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:56,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:51:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 22:51:59,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:51:59,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840605829] [2022-12-12 22:51:59,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840605829] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 22:51:59,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403349089] [2022-12-12 22:51:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:51:59,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 22:51:59,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:51:59,071 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) [2022-12-12 22:51:59,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 22:51:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:51:59,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-12 22:51:59,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 22:51:59,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 22:51:59,394 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-12 22:51:59,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-12 22:51:59,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-12 22:51:59,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 22:51:59,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-12 22:51:59,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-12 22:51:59,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 22:51:59,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-12-12 22:51:59,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 22:51:59,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-12 22:51:59,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 22:51:59,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 22:51:59,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-12-12 22:51:59,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 22:51:59,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-12 22:51:59,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 22:51:59,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 22:51:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 22:51:59,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-12 22:51:59,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 22:51:59,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-12 22:52:00,794 INFO L321 Elim1Store]: treesize reduction 161, result has 29.7 percent of original size [2022-12-12 22:52:00,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 142 [2022-12-12 22:52:00,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 22:52:00,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 22:52:00,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 108 [2022-12-12 22:52:00,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 22:52:00,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 22:52:00,829 INFO L321 Elim1Store]: treesize reduction 3, result has 70.0 percent of original size [2022-12-12 22:52:00,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 83 [2022-12-12 22:52:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 22:52:00,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 22:52:07,323 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_562 (Array Int Int)) (v_ArrVal_561 (Array Int Int)) (~B~0.base Int) (v_ArrVal_564 (Array Int Int)) (v_ArrVal_563 (Array Int Int)) (v_ArrVal_566 (Array Int Int)) (v_ArrVal_565 (Array Int Int)) (~A~0.base Int) (~A~0.offset Int) (v_ArrVal_568 (Array Int Int)) (v_ArrVal_567 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (v_ArrVal_569 (Array Int Int)) (~B~0.offset Int)) (let ((.cse4 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_563) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_565) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_567))) (let ((.cse9 (select .cse4 ~A~0.base)) (.cse11 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse12 (select .cse4 ~B~0.base)) (.cse10 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse0 (select .cse12 (+ .cse10 ~B~0.offset))) (.cse3 (select .cse12 (+ ~B~0.offset .cse11))) (.cse1 (select .cse9 (+ ~A~0.offset .cse11))) (.cse2 (select .cse9 (+ .cse10 ~A~0.offset)))) (or (not (<= 0 .cse0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse1 1)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse2 1)) (not (<= 0 .cse3)) (not (<= 0 .cse1)) (not (< .cse0 c_~maxB~0)) (not (< .cse3 c_~maxB~0)) (let ((.cse5 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_562) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_564) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_568) c_~mult~0.base)) (.cse7 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_561) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_566) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_569) c_~mult~0.base))) (< (+ c_~res1~0 (let ((.cse6 (+ c_~mult~0.offset (* .cse2 4)))) (select (select .cse4 (select .cse5 .cse6)) (+ (select .cse7 .cse6) (* 4 .cse0))))) (+ (let ((.cse8 (+ c_~mult~0.offset (* .cse1 4)))) (select (select .cse4 (select .cse5 .cse8)) (+ (* .cse3 4) (select .cse7 .cse8)))) c_~res2~0 1))) (< .cse2 0)))))) (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_562 (Array Int Int)) (v_ArrVal_561 (Array Int Int)) (~B~0.base Int) (v_ArrVal_564 (Array Int Int)) (v_ArrVal_563 (Array Int Int)) (v_ArrVal_566 (Array Int Int)) (v_ArrVal_565 (Array Int Int)) (~A~0.base Int) (~A~0.offset Int) (v_ArrVal_568 (Array Int Int)) (v_ArrVal_567 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (v_ArrVal_569 (Array Int Int)) (~B~0.offset Int)) (let ((.cse14 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_563) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_565) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_567))) (let ((.cse24 (select .cse14 ~B~0.base)) (.cse23 (* |thread1Thread1of1ForFork2_~i~0#1| 4)) (.cse22 (select .cse14 ~A~0.base)) (.cse25 (* 4 |thread3Thread1of1ForFork1_~i~2#1|))) (let ((.cse19 (select .cse22 (+ ~A~0.offset .cse25))) (.cse13 (select .cse24 (+ .cse23 ~B~0.offset))) (.cse17 (select .cse24 (+ ~B~0.offset .cse25))) (.cse21 (select .cse22 (+ .cse23 ~A~0.offset)))) (or (not (<= 0 .cse13)) (let ((.cse15 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_562) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_564) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_568) c_~mult~0.base)) (.cse18 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_561) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_566) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_569) c_~mult~0.base))) (<= (+ (let ((.cse16 (+ c_~mult~0.offset (* .cse19 4)))) (select (select .cse14 (select .cse15 .cse16)) (+ (* .cse17 4) (select .cse18 .cse16)))) c_~res2~0) (+ c_~res1~0 (let ((.cse20 (+ c_~mult~0.offset (* .cse21 4)))) (select (select .cse14 (select .cse15 .cse20)) (+ (select .cse18 .cse20) (* 4 .cse13))))))) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse19 1)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse21 1)) (not (<= 0 .cse17)) (not (<= 0 .cse19)) (not (< .cse13 c_~maxB~0)) (not (< .cse17 c_~maxB~0)) (< .cse21 0))))))) is different from false [2022-12-12 22:52:07,370 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:07,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 956 treesize of output 921 [2022-12-12 22:52:07,384 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:07,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 908 treesize of output 873 [2022-12-12 22:52:07,472 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:07,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 11140 treesize of output 11236 [2022-12-12 22:52:07,592 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:07,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 125692 treesize of output 121644 [2022-12-12 22:52:07,794 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:07,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 121199 treesize of output 114596 [2022-12-12 22:52:07,936 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:07,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114543 treesize of output 101284 [2022-12-12 22:52:08,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101231 treesize of output 97956 [2022-12-12 22:52:08,217 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97903 treesize of output 91300 [2022-12-12 22:52:08,288 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2022-12-12 22:52:08,357 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91247 treesize of output 77988 [2022-12-12 22:52:08,489 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77935 treesize of output 74660 [2022-12-12 22:52:08,651 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74607 treesize of output 71332 [2022-12-12 22:52:08,811 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71279 treesize of output 69668 [2022-12-12 22:52:08,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:08,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69615 treesize of output 68836 [2022-12-12 22:52:09,147 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:09,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68783 treesize of output 67172 [2022-12-12 22:52:09,314 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:09,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67119 treesize of output 63844 [2022-12-12 22:52:09,460 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 22:52:09,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63791 treesize of output 63012 Received shutdown request... [2022-12-12 23:05:05,669 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 23:05:05,669 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 23:05:05,675 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 [2022-12-12 23:05:05,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-12 23:05:05,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 23:05:05,870 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-41-2-1 context. [2022-12-12 23:05:05,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 23:05:05,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 23:05:05,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 23:05:05,872 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-12 23:05:05,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 23:05:05,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 23:05:05,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 11:05:05 BasicIcfg [2022-12-12 23:05:05,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 23:05:05,879 INFO L158 Benchmark]: Toolchain (without parser) took 805501.29ms. Allocated memory was 186.6MB in the beginning and 663.7MB in the end (delta: 477.1MB). Free memory was 162.9MB in the beginning and 536.3MB in the end (delta: -373.4MB). Peak memory consumption was 417.1MB. Max. memory is 8.0GB. [2022-12-12 23:05:05,879 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 164.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 23:05:05,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.58ms. Allocated memory is still 186.6MB. Free memory was 162.4MB in the beginning and 149.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 23:05:05,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.12ms. Allocated memory is still 186.6MB. Free memory was 149.2MB in the beginning and 146.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 23:05:05,879 INFO L158 Benchmark]: Boogie Preprocessor took 58.17ms. Allocated memory is still 186.6MB. Free memory was 146.1MB in the beginning and 143.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 23:05:05,880 INFO L158 Benchmark]: RCFGBuilder took 739.56ms. Allocated memory is still 186.6MB. Free memory was 143.5MB in the beginning and 144.8MB in the end (delta: -1.3MB). Peak memory consumption was 36.9MB. Max. memory is 8.0GB. [2022-12-12 23:05:05,880 INFO L158 Benchmark]: TraceAbstraction took 804419.83ms. Allocated memory was 186.6MB in the beginning and 663.7MB in the end (delta: 477.1MB). Free memory was 143.7MB in the beginning and 536.3MB in the end (delta: -392.5MB). Peak memory consumption was 397.0MB. Max. memory is 8.0GB. [2022-12-12 23:05:05,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 164.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.58ms. Allocated memory is still 186.6MB. Free memory was 162.4MB in the beginning and 149.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.12ms. Allocated memory is still 186.6MB. Free memory was 149.2MB in the beginning and 146.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.17ms. Allocated memory is still 186.6MB. Free memory was 146.1MB in the beginning and 143.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 739.56ms. Allocated memory is still 186.6MB. Free memory was 143.5MB in the beginning and 144.8MB in the end (delta: -1.3MB). Peak memory consumption was 36.9MB. Max. memory is 8.0GB. * TraceAbstraction took 804419.83ms. Allocated memory was 186.6MB in the beginning and 663.7MB in the end (delta: 477.1MB). Free memory was 143.7MB in the beginning and 536.3MB in the end (delta: -392.5MB). Peak memory consumption was 397.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7s, 285 PlacesBefore, 41 PlacesAfterwards, 310 TransitionsBefore, 40 TransitionsAfterwards, 11934 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 147 TrivialYvCompositions, 97 ConcurrentYvCompositions, 26 ChoiceCompositions, 271 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 7837, independent unconditional: 0, dependent: 64, dependent conditional: 64, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7168, independent: 7128, independent conditional: 0, independent unconditional: 7128, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7168, independent: 7127, independent conditional: 0, independent unconditional: 7127, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 145, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7901, independent: 709, independent conditional: 0, independent unconditional: 709, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 7168, unknown conditional: 0, unknown unconditional: 7168] , Statistics on independence cache: Total cache size (in pairs): 13302, Positive cache size: 13262, Positive conditional cache size: 0, Positive unconditional cache size: 13262, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-41-2-1 context. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-41-2-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-41-2-1 context. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-41-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 804.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 383 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 843 IncrementalHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 843 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 125 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1993occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4901 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1045 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 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