/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:46:56,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:46:56,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:46:56,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:46:56,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:46:56,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:46:56,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:46:56,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:46:56,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:46:56,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:46:56,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:46:56,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:46:56,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:46:56,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:46:56,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:46:56,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:46:56,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:46:56,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:46:56,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:46:56,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:46:56,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:46:56,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:46:56,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:46:56,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:46:56,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 15:46:56,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 15:46:56,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 15:46:56,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 15:46:56,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 15:46:56,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 15:46:56,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 15:46:56,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 15:46:56,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 15:46:56,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 15:46:56,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 15:46:56,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 15:46:56,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 15:46:56,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 15:46:56,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:46:56,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:46:56,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:46:56,824 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 15:46:56,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:46:56,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:46:56,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:46:56,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:46:56,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:46:56,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:46:56,852 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:46:56,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:46:56,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:46:56,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:46:56,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:46:56,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:46:56,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:46:56,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:46:56,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:46:56,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:46:57,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:46:57,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:46:57,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:46:57,142 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:46:57,143 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:46:57,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-12-12 15:46:58,070 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:46:58,259 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:46:58,260 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-12-12 15:46:58,272 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b42c67df/ecd9e03b2e384ea59bc188c8e5276783/FLAGbd0f0f73d [2022-12-12 15:46:58,282 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b42c67df/ecd9e03b2e384ea59bc188c8e5276783 [2022-12-12 15:46:58,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:46:58,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:46:58,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:46:58,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:46:58,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:46:58,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f8cc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58, skipping insertion in model container [2022-12-12 15:46:58,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:46:58,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:46:58,457 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-three-array-sum-alt.wvr.c[2412,2425] [2022-12-12 15:46:58,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:46:58,478 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:46:58,505 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-three-array-sum-alt.wvr.c[2412,2425] [2022-12-12 15:46:58,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:46:58,519 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:46:58,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58 WrapperNode [2022-12-12 15:46:58,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:46:58,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:46:58,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:46:58,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:46:58,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,556 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 271 [2022-12-12 15:46:58,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:46:58,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:46:58,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:46:58,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:46:58,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:46:58,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:46:58,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:46:58,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:46:58,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (1/1) ... [2022-12-12 15:46:58,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:46:58,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:46:58,633 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 15:46:58,659 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 15:46:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:46:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 15:46:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 15:46:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 15:46:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:46:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:46:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:46:58,669 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 15:46:58,741 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:46:58,742 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:46:59,158 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:46:59,166 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:46:59,166 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-12 15:46:59,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:46:59 BoogieIcfgContainer [2022-12-12 15:46:59,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:46:59,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:46:59,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:46:59,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:46:59,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:46:58" (1/3) ... [2022-12-12 15:46:59,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fc3839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:46:59, skipping insertion in model container [2022-12-12 15:46:59,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:46:58" (2/3) ... [2022-12-12 15:46:59,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fc3839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:46:59, skipping insertion in model container [2022-12-12 15:46:59,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:46:59" (3/3) ... [2022-12-12 15:46:59,174 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2022-12-12 15:46:59,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:46:59,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:46:59,185 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:46:59,276 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 15:46:59,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 317 transitions, 658 flow [2022-12-12 15:46:59,423 INFO L130 PetriNetUnfolder]: 29/314 cut-off events. [2022-12-12 15:46:59,423 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 15:46:59,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 314 events. 29/314 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 427 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-12-12 15:46:59,429 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 317 transitions, 658 flow [2022-12-12 15:46:59,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 304 transitions, 626 flow [2022-12-12 15:46:59,439 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:46:59,452 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 304 transitions, 626 flow [2022-12-12 15:46:59,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 304 transitions, 626 flow [2022-12-12 15:46:59,528 INFO L130 PetriNetUnfolder]: 29/304 cut-off events. [2022-12-12 15:46:59,528 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 15:46:59,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 304 events. 29/304 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 422 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-12-12 15:46:59,539 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 304 transitions, 626 flow [2022-12-12 15:46:59,539 INFO L226 LiptonReduction]: Number of co-enabled transitions 12810 [2022-12-12 15:47:08,292 INFO L241 LiptonReduction]: Total number of compositions: 276 [2022-12-12 15:47:08,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:47:08,306 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;@7fe7f250, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:47:08,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 15:47:08,310 INFO L130 PetriNetUnfolder]: 6/27 cut-off events. [2022-12-12 15:47:08,310 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 15:47:08,310 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:08,311 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 15:47:08,311 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 15:47:08,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1440705028, now seen corresponding path program 1 times [2022-12-12 15:47:08,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:08,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250375574] [2022-12-12 15:47:08,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:08,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:08,787 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 15:47:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:08,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250375574] [2022-12-12 15:47:08,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250375574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:47:08,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:47:08,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 15:47:08,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118232894] [2022-12-12 15:47:08,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:08,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 15:47:08,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:08,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 15:47:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 15:47:08,812 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 28 [2022-12-12 15:47:08,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 15:47:08,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:08,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 28 [2022-12-12 15:47:08,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:08,914 INFO L130 PetriNetUnfolder]: 362/512 cut-off events. [2022-12-12 15:47:08,914 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-12 15:47:08,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 512 events. 362/512 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1612 event pairs, 39 based on Foata normal form. 1/312 useless extension candidates. Maximal degree in co-relation 803. Up to 421 conditions per place. [2022-12-12 15:47:08,918 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 36 selfloop transitions, 4 changer transitions 1/44 dead transitions. [2022-12-12 15:47:08,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 44 transitions, 203 flow [2022-12-12 15:47:08,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 15:47:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 15:47:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2022-12-12 15:47:08,927 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2022-12-12 15:47:08,928 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 74 flow. Second operand 3 states and 51 transitions. [2022-12-12 15:47:08,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 44 transitions, 203 flow [2022-12-12 15:47:08,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 44 transitions, 181 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-12 15:47:08,932 INFO L231 Difference]: Finished difference. Result has 29 places, 31 transitions, 88 flow [2022-12-12 15:47:08,933 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=29, PETRI_TRANSITIONS=31} [2022-12-12 15:47:08,935 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-12 15:47:08,935 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 88 flow [2022-12-12 15:47:08,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 15:47:08,935 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:08,935 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] [2022-12-12 15:47:08,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:47:08,936 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 15:47:08,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash 638595226, now seen corresponding path program 1 times [2022-12-12 15:47:08,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:08,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755326956] [2022-12-12 15:47:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:08,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:47:09,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:09,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755326956] [2022-12-12 15:47:09,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755326956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:47:09,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:47:09,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:47:09,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329640438] [2022-12-12 15:47:09,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:09,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:47:09,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:47:09,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:47:09,019 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 15:47:09,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 31 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 15:47:09,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:09,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 15:47:09,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:09,203 INFO L130 PetriNetUnfolder]: 669/987 cut-off events. [2022-12-12 15:47:09,203 INFO L131 PetriNetUnfolder]: For 292/292 co-relation queries the response was YES. [2022-12-12 15:47:09,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 987 events. 669/987 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4015 event pairs, 243 based on Foata normal form. 38/1009 useless extension candidates. Maximal degree in co-relation 500. Up to 518 conditions per place. [2022-12-12 15:47:09,207 INFO L137 encePairwiseOnDemand]: 19/28 looper letters, 60 selfloop transitions, 10 changer transitions 0/72 dead transitions. [2022-12-12 15:47:09,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 72 transitions, 340 flow [2022-12-12 15:47:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:47:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:47:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 74 transitions. [2022-12-12 15:47:09,209 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5285714285714286 [2022-12-12 15:47:09,210 INFO L175 Difference]: Start difference. First operand has 29 places, 31 transitions, 88 flow. Second operand 5 states and 74 transitions. [2022-12-12 15:47:09,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 72 transitions, 340 flow [2022-12-12 15:47:09,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 72 transitions, 332 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 15:47:09,212 INFO L231 Difference]: Finished difference. Result has 35 places, 39 transitions, 150 flow [2022-12-12 15:47:09,212 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=150, PETRI_PLACES=35, PETRI_TRANSITIONS=39} [2022-12-12 15:47:09,212 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2022-12-12 15:47:09,213 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 39 transitions, 150 flow [2022-12-12 15:47:09,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 15:47:09,213 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:09,213 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] [2022-12-12 15:47:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 15:47:09,213 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 15:47:09,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:09,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1049221569, now seen corresponding path program 1 times [2022-12-12 15:47:09,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:09,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661135643] [2022-12-12 15:47:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:09,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:47:09,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:09,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661135643] [2022-12-12 15:47:09,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661135643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:47:09,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:47:09,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:47:09,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782291058] [2022-12-12 15:47:09,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:09,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:47:09,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:09,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:47:09,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:47:09,308 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 15:47:09,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 39 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 15:47:09,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:09,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 15:47:09,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:09,439 INFO L130 PetriNetUnfolder]: 489/770 cut-off events. [2022-12-12 15:47:09,440 INFO L131 PetriNetUnfolder]: For 305/331 co-relation queries the response was YES. [2022-12-12 15:47:09,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 770 events. 489/770 cut-off events. For 305/331 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3229 event pairs, 186 based on Foata normal form. 52/814 useless extension candidates. Maximal degree in co-relation 1234. Up to 480 conditions per place. [2022-12-12 15:47:09,443 INFO L137 encePairwiseOnDemand]: 19/28 looper letters, 56 selfloop transitions, 10 changer transitions 0/69 dead transitions. [2022-12-12 15:47:09,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 69 transitions, 366 flow [2022-12-12 15:47:09,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:47:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:47:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2022-12-12 15:47:09,445 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2022-12-12 15:47:09,445 INFO L175 Difference]: Start difference. First operand has 35 places, 39 transitions, 150 flow. Second operand 5 states and 72 transitions. [2022-12-12 15:47:09,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 69 transitions, 366 flow [2022-12-12 15:47:09,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 69 transitions, 366 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 15:47:09,448 INFO L231 Difference]: Finished difference. Result has 41 places, 40 transitions, 183 flow [2022-12-12 15:47:09,449 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=41, PETRI_TRANSITIONS=40} [2022-12-12 15:47:09,450 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2022-12-12 15:47:09,450 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 40 transitions, 183 flow [2022-12-12 15:47:09,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 15:47:09,450 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:09,450 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] [2022-12-12 15:47:09,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 15:47:09,451 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 15:47:09,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1888758092, now seen corresponding path program 1 times [2022-12-12 15:47:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:09,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377734301] [2022-12-12 15:47:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:47:09,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:09,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377734301] [2022-12-12 15:47:09,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377734301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:47:09,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:47:09,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:47:09,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455082959] [2022-12-12 15:47:09,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:09,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:47:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:09,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:47:09,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:47:09,558 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 15:47:09,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 183 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 15:47:09,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:09,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 15:47:09,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:09,682 INFO L130 PetriNetUnfolder]: 419/649 cut-off events. [2022-12-12 15:47:09,683 INFO L131 PetriNetUnfolder]: For 403/439 co-relation queries the response was YES. [2022-12-12 15:47:09,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 649 events. 419/649 cut-off events. For 403/439 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2489 event pairs, 202 based on Foata normal form. 49/683 useless extension candidates. Maximal degree in co-relation 1352. Up to 510 conditions per place. [2022-12-12 15:47:09,685 INFO L137 encePairwiseOnDemand]: 19/28 looper letters, 26 selfloop transitions, 6 changer transitions 31/65 dead transitions. [2022-12-12 15:47:09,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 65 transitions, 369 flow [2022-12-12 15:47:09,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:47:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:47:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2022-12-12 15:47:09,687 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2022-12-12 15:47:09,687 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 183 flow. Second operand 5 states and 69 transitions. [2022-12-12 15:47:09,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 65 transitions, 369 flow [2022-12-12 15:47:09,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 65 transitions, 350 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-12 15:47:09,689 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 140 flow [2022-12-12 15:47:09,689 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2022-12-12 15:47:09,689 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 13 predicate places. [2022-12-12 15:47:09,689 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 140 flow [2022-12-12 15:47:09,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 15:47:09,690 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:09,690 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] [2022-12-12 15:47:09,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 15:47:09,690 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 15:47:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:09,690 INFO L85 PathProgramCache]: Analyzing trace with hash -104355202, now seen corresponding path program 1 times [2022-12-12 15:47:09,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:09,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210230576] [2022-12-12 15:47:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:09,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:09,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:09,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210230576] [2022-12-12 15:47:09,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210230576] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:09,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566253491] [2022-12-12 15:47:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:09,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:47:09,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:47:09,784 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 15:47:09,785 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 15:47:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:09,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 15:47:09,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:47:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:09,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:47:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:09,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566253491] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:09,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 15:47:09,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-12 15:47:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364002709] [2022-12-12 15:47:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:09,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:47:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:09,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:47:09,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-12 15:47:10,000 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 15:47:10,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 15:47:10,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:10,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 15:47:10,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:10,116 INFO L130 PetriNetUnfolder]: 398/570 cut-off events. [2022-12-12 15:47:10,116 INFO L131 PetriNetUnfolder]: For 258/258 co-relation queries the response was YES. [2022-12-12 15:47:10,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 570 events. 398/570 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1989 event pairs, 126 based on Foata normal form. 38/597 useless extension candidates. Maximal degree in co-relation 1444. Up to 433 conditions per place. [2022-12-12 15:47:10,119 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 39 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2022-12-12 15:47:10,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 268 flow [2022-12-12 15:47:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:47:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:47:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2022-12-12 15:47:10,120 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34285714285714286 [2022-12-12 15:47:10,120 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 140 flow. Second operand 5 states and 48 transitions. [2022-12-12 15:47:10,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 268 flow [2022-12-12 15:47:10,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 232 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-12-12 15:47:10,122 INFO L231 Difference]: Finished difference. Result has 35 places, 35 transitions, 129 flow [2022-12-12 15:47:10,122 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2022-12-12 15:47:10,124 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2022-12-12 15:47:10,124 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 129 flow [2022-12-12 15:47:10,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 15:47:10,124 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:10,124 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] [2022-12-12 15:47:10,130 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 15:47:10,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:47:10,329 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 15:47:10,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1684185973, now seen corresponding path program 1 times [2022-12-12 15:47:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:10,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502023654] [2022-12-12 15:47:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:10,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:10,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502023654] [2022-12-12 15:47:10,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502023654] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:10,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414680955] [2022-12-12 15:47:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:10,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:47:10,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:47:10,438 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 15:47:10,440 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 15:47:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:10,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 15:47:10,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:47:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:10,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:47:10,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:10,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414680955] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:10,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 15:47:10,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-12 15:47:10,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630082254] [2022-12-12 15:47:10,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:10,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:47:10,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:10,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:47:10,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-12 15:47:10,594 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 15:47:10,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 15:47:10,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:10,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 15:47:10,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:10,677 INFO L130 PetriNetUnfolder]: 326/479 cut-off events. [2022-12-12 15:47:10,678 INFO L131 PetriNetUnfolder]: For 258/304 co-relation queries the response was YES. [2022-12-12 15:47:10,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 479 events. 326/479 cut-off events. For 258/304 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1602 event pairs, 119 based on Foata normal form. 76/545 useless extension candidates. Maximal degree in co-relation 1289. Up to 367 conditions per place. [2022-12-12 15:47:10,680 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 41 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2022-12-12 15:47:10,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 271 flow [2022-12-12 15:47:10,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:47:10,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:47:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2022-12-12 15:47:10,681 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34285714285714286 [2022-12-12 15:47:10,681 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 129 flow. Second operand 5 states and 48 transitions. [2022-12-12 15:47:10,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 271 flow [2022-12-12 15:47:10,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 254 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-12 15:47:10,682 INFO L231 Difference]: Finished difference. Result has 38 places, 36 transitions, 139 flow [2022-12-12 15:47:10,682 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=38, PETRI_TRANSITIONS=36} [2022-12-12 15:47:10,683 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-12 15:47:10,683 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 36 transitions, 139 flow [2022-12-12 15:47:10,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 15:47:10,683 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:10,683 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] [2022-12-12 15:47:10,691 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 15:47:10,889 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,SelfDestructingSolverStorable5 [2022-12-12 15:47:10,889 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 15:47:10,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:10,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1990580032, now seen corresponding path program 1 times [2022-12-12 15:47:10,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:10,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043194687] [2022-12-12 15:47:10,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:10,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:10,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043194687] [2022-12-12 15:47:10,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043194687] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400666874] [2022-12-12 15:47:10,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:10,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:47:10,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:47:10,990 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 15:47:10,991 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 15:47:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:11,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-12 15:47:11,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:47:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:11,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:47:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:11,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400666874] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:11,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 15:47:11,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-12 15:47:11,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229557870] [2022-12-12 15:47:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:47:11,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:47:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:47:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:47:11,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-12 15:47:11,197 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-12 15:47:11,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 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 15:47:11,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:47:11,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-12 15:47:11,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:47:11,298 INFO L130 PetriNetUnfolder]: 292/440 cut-off events. [2022-12-12 15:47:11,298 INFO L131 PetriNetUnfolder]: For 358/463 co-relation queries the response was YES. [2022-12-12 15:47:11,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1316 conditions, 440 events. 292/440 cut-off events. For 358/463 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1364 event pairs, 94 based on Foata normal form. 135/572 useless extension candidates. Maximal degree in co-relation 1276. Up to 333 conditions per place. [2022-12-12 15:47:11,300 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 43 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2022-12-12 15:47:11,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 50 transitions, 293 flow [2022-12-12 15:47:11,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 15:47:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 15:47:11,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2022-12-12 15:47:11,302 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34285714285714286 [2022-12-12 15:47:11,302 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 139 flow. Second operand 5 states and 48 transitions. [2022-12-12 15:47:11,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 50 transitions, 293 flow [2022-12-12 15:47:11,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 276 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-12 15:47:11,304 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 149 flow [2022-12-12 15:47:11,304 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2022-12-12 15:47:11,305 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2022-12-12 15:47:11,305 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 149 flow [2022-12-12 15:47:11,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 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 15:47:11,305 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:47:11,305 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 15:47:11,312 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 15:47:11,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:47:11,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 15:47:11,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:47:11,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1468135778, now seen corresponding path program 1 times [2022-12-12 15:47:11,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:47:11,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293077982] [2022-12-12 15:47:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:11,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:47:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:13,130 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 15:47:13,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:47:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293077982] [2022-12-12 15:47:13,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293077982] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:47:13,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650199613] [2022-12-12 15:47:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:47:13,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:47:13,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:47:13,132 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 15:47:13,134 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 15:47:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:47:13,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 93 conjunts are in the unsatisfiable core [2022-12-12 15:47:13,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:47:13,302 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 15:47:13,360 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-12 15:47:13,360 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 15:47:13,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:47:13,584 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 15:47:13,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:47:13,646 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 15:47:13,765 INFO L321 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-12-12 15:47:13,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2022-12-12 15:47:13,896 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:47:13,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 94 [2022-12-12 15:47:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-12 15:47:13,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:47:14,387 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~C~0.offset Int) (v_ArrVal_353 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_353))) (let ((.cse0 (select (select .cse2 c_~B~0.base) c_~B~0.offset)) (.cse1 (select (select .cse2 c_~A~0.base) c_~A~0.offset))) (<= (+ .cse0 .cse1 c_~csum~0) (+ c_~asum~0 c_~bsum~0 (select (select (store .cse2 c_~C~0.base (store (select .cse2 c_~C~0.base) ~C~0.offset (+ .cse0 .cse1))) c_~B~0.base) c_~B~0.offset)))))) (forall ((~C~0.offset Int) (v_ArrVal_353 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_353))) (let ((.cse4 (select (select .cse3 c_~B~0.base) c_~B~0.offset)) (.cse5 (select (select .cse3 c_~A~0.base) c_~A~0.offset))) (<= (+ c_~asum~0 c_~bsum~0 (select (select (store .cse3 c_~C~0.base (store (select .cse3 c_~C~0.base) ~C~0.offset (+ .cse4 .cse5))) c_~B~0.base) c_~B~0.offset)) (+ .cse4 .cse5 c_~csum~0)))))) is different from false [2022-12-12 15:47:14,419 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((~C~0.offset Int) (v_ArrVal_353 (Array Int Int)) (v_ArrVal_352 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_353))) (let ((.cse0 (select (select .cse2 c_~A~0.base) c_~A~0.offset)) (.cse1 (select (select .cse2 c_~B~0.base) c_~B~0.offset))) (<= (+ .cse0 .cse1 c_~csum~0) (+ c_~asum~0 c_~bsum~0 (select (select (store .cse2 c_~C~0.base (store (select .cse2 c_~C~0.base) ~C~0.offset (+ .cse0 .cse1))) c_~B~0.base) c_~B~0.offset)))))) (forall ((~C~0.offset Int) (v_ArrVal_353 (Array Int Int)) (v_ArrVal_352 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_353))) (let ((.cse4 (select (select .cse3 c_~A~0.base) c_~A~0.offset)) (.cse5 (select (select .cse3 c_~B~0.base) c_~B~0.offset))) (<= (+ c_~asum~0 c_~bsum~0 (select (select (store .cse3 c_~C~0.base (store (select .cse3 c_~C~0.base) ~C~0.offset (+ .cse4 .cse5))) c_~B~0.base) c_~B~0.offset)) (+ .cse4 .cse5 c_~csum~0)))))) is different from false [2022-12-12 15:47:14,561 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:47:14,562 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 31894 treesize of output 28838 [2022-12-12 15:47:14,718 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:47:14,720 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 30854 treesize of output 28806 [2022-12-12 15:47:14,916 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:47:14,918 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 30106 treesize of output 29042 Received shutdown request... [2022-12-12 16:00:21,345 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-12 16:00:21,347 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 16:00:21,352 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 16:00:21,385 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 16:00:21,388 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 16:00:21,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 16:00:21,552 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 29 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 6ms.. [2022-12-12 16:00:21,553 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 16:00:21,553 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 16:00:21,553 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 16:00:21,554 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 16:00:21,556 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 16:00:21,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 16:00:21,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 04:00:21 BasicIcfg [2022-12-12 16:00:21,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 16:00:21,558 INFO L158 Benchmark]: Toolchain (without parser) took 803272.89ms. Allocated memory was 190.8MB in the beginning and 594.5MB in the end (delta: 403.7MB). Free memory was 167.9MB in the beginning and 546.4MB in the end (delta: -378.5MB). Peak memory consumption was 376.5MB. Max. memory is 8.0GB. [2022-12-12 16:00:21,559 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 16:00:21,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.91ms. Allocated memory is still 190.8MB. Free memory was 167.2MB in the beginning and 155.8MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-12 16:00:21,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.74ms. Allocated memory is still 190.8MB. Free memory was 155.4MB in the beginning and 153.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 16:00:21,560 INFO L158 Benchmark]: Boogie Preprocessor took 36.63ms. Allocated memory is still 190.8MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 16:00:21,560 INFO L158 Benchmark]: RCFGBuilder took 574.03ms. Allocated memory is still 190.8MB. Free memory was 151.0MB in the beginning and 161.6MB in the end (delta: -10.6MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. [2022-12-12 16:00:21,560 INFO L158 Benchmark]: TraceAbstraction took 802388.19ms. Allocated memory was 190.8MB in the beginning and 594.5MB in the end (delta: 403.7MB). Free memory was 160.5MB in the beginning and 546.4MB in the end (delta: -385.9MB). Peak memory consumption was 369.3MB. Max. memory is 8.0GB. [2022-12-12 16:00:21,561 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 127.9MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.91ms. Allocated memory is still 190.8MB. Free memory was 167.2MB in the beginning and 155.8MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.74ms. Allocated memory is still 190.8MB. Free memory was 155.4MB in the beginning and 153.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.63ms. Allocated memory is still 190.8MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 574.03ms. Allocated memory is still 190.8MB. Free memory was 151.0MB in the beginning and 161.6MB in the end (delta: -10.6MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. * TraceAbstraction took 802388.19ms. Allocated memory was 190.8MB in the beginning and 594.5MB in the end (delta: 403.7MB). Free memory was 160.5MB in the beginning and 546.4MB in the end (delta: -385.9MB). Peak memory consumption was 369.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8s, 285 PlacesBefore, 32 PlacesAfterwards, 304 TransitionsBefore, 28 TransitionsAfterwards, 12810 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 136 TrivialYvCompositions, 117 ConcurrentYvCompositions, 23 ChoiceCompositions, 276 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7793, independent: 7778, independent conditional: 7778, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7793, independent: 7778, independent conditional: 0, independent unconditional: 7778, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7793, independent: 7778, independent conditional: 0, independent unconditional: 7778, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7793, independent: 7778, independent conditional: 0, independent unconditional: 7778, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7151, independent: 7138, independent conditional: 0, independent unconditional: 7138, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7151, independent: 7133, independent conditional: 0, independent unconditional: 7133, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7793, independent: 640, independent conditional: 0, independent unconditional: 640, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 7151, unknown conditional: 0, unknown unconditional: 7151] , Statistics on independence cache: Total cache size (in pairs): 14092, Positive cache size: 14079, Positive conditional cache size: 0, Positive unconditional cache size: 14079, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 29 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 6ms.. - TimeoutResultAtElement [Line: 83]: 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 29 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 6ms.. - TimeoutResultAtElement [Line: 84]: 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 29 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 6ms.. - TimeoutResultAtElement [Line: 85]: 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 29 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 6ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 406 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 802.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 267 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 525 IncrementalHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 6 mSDtfsCounter, 525 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 143 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 903 SizeOfPredicates, 12 NumberOfNonLiveVariables, 999 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 36/42 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