/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:42:42,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:42:42,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:42:42,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:42:42,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:42:42,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:42:42,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:42:42,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:42:42,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:42:42,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:42:42,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:42:42,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:42:42,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:42:42,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:42:42,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:42:42,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:42:42,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:42:42,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:42:42,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:42:42,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:42:42,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:42:42,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:42:42,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:42:42,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:42:42,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 22:42:42,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 22:42:42,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 22:42:42,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 22:42:42,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 22:42:42,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 22:42:42,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 22:42:42,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 22:42:42,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 22:42:42,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 22:42:42,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 22:42:42,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 22:42:42,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 22:42:42,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 22:42:42,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:42:42,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:42:42,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:42:42,405 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-FA-NoLbe.epf [2022-02-10 22:42:42,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:42:42,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:42:42,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:42:42,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:42:42,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:42:42,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:42:42,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:42:42,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:42:42,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:42:42,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:42:42,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:42:42,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:42:42,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:42:42,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:42:42,447 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:42:42,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:42:42,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:42:42,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:42:42,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:42:42,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:42:42,634 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:42:42,635 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:42:42,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2022-02-10 22:42:42,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d009e62/84926ffc4c5a499f94d12558767522a4/FLAG9c79a09ec [2022-02-10 22:42:43,066 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:42:43,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2022-02-10 22:42:43,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d009e62/84926ffc4c5a499f94d12558767522a4/FLAG9c79a09ec [2022-02-10 22:42:43,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d009e62/84926ffc4c5a499f94d12558767522a4 [2022-02-10 22:42:43,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:42:43,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:42:43,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:42:43,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:42:43,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:42:43,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ccf3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43, skipping insertion in model container [2022-02-10 22:42:43,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:42:43,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:42:43,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c[2507,2520] [2022-02-10 22:42:43,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:42:43,281 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:42:43,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c[2507,2520] [2022-02-10 22:42:43,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:42:43,304 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:42:43,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43 WrapperNode [2022-02-10 22:42:43,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:42:43,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:42:43,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:42:43,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:42:43,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,339 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 120 [2022-02-10 22:42:43,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:42:43,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:42:43,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:42:43,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:42:43,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:42:43,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:42:43,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:42:43,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:42:43,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (1/1) ... [2022-02-10 22:42:43,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:42:43,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:42:43,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:42:43,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:42:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:42:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:42:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:42:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:42:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:42:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:42:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:42:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 22:42:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 22:42:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:42:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:42:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:42:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:42:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:42:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:42:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:42:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:42:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:42:43,460 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:42:43,536 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:42:43,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:42:43,714 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:42:43,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:42:43,750 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-10 22:42:43,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:42:43 BoogieIcfgContainer [2022-02-10 22:42:43,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:42:43,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:42:43,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:42:43,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:42:43,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:42:43" (1/3) ... [2022-02-10 22:42:43,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303f854f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:42:43, skipping insertion in model container [2022-02-10 22:42:43,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:42:43" (2/3) ... [2022-02-10 22:42:43,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303f854f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:42:43, skipping insertion in model container [2022-02-10 22:42:43,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:42:43" (3/3) ... [2022-02-10 22:42:43,762 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2022-02-10 22:42:43,766 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:42:43,766 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:42:43,766 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:42:43,766 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:42:43,811 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,811 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,812 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,812 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,812 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,812 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,812 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,812 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,813 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,813 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,813 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,813 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,813 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,815 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,815 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,815 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,815 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,816 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,816 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,816 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,816 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,816 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,816 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,817 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,817 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,817 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,817 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,817 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,817 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,818 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,819 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,819 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,819 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,819 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,819 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,819 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,820 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,820 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,820 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,820 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,820 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,820 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,821 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,822 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,822 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,822 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,822 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,822 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,822 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,823 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,823 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,823 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,823 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,823 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,823 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,824 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,825 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,825 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,825 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,831 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,831 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,832 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,833 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,836 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,836 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,837 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,837 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,837 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,837 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,837 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,837 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,838 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,838 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,838 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,838 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,838 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,839 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,839 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,839 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,839 WARN L322 ript$VariableManager]: TermVariable |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:42:43,843 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 22:42:43,884 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:42:43,889 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:42:43,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 22:42:43,896 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 128 transitions, 288 flow [2022-02-10 22:42:45,001 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33655 states, 33654 states have (on average 4.971622986866346) internal successors, (167315), 33654 states have internal predecessors, (167315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 33655 states, 33654 states have (on average 4.971622986866346) internal successors, (167315), 33654 states have internal predecessors, (167315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-10 22:42:45,380 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:42:45,381 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:42:45,381 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:42:45,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:42:45,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1086084157, now seen corresponding path program 1 times [2022-02-10 22:42:45,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:42:45,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311091524] [2022-02-10 22:42:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:42:45,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:42:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:42:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:42:45,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:42:45,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311091524] [2022-02-10 22:42:45,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311091524] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:42:45,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:42:45,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:42:45,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632970292] [2022-02-10 22:42:45,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:42:45,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:42:45,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:42:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:42:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:42:45,610 INFO L87 Difference]: Start difference. First operand has 33655 states, 33654 states have (on average 4.971622986866346) internal successors, (167315), 33654 states have internal predecessors, (167315), 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) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:42:46,151 INFO L93 Difference]: Finished difference Result 33655 states and 153292 transitions. [2022-02-10 22:42:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:42:46,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 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) Word has length 85 [2022-02-10 22:42:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:42:46,532 INFO L225 Difference]: With dead ends: 33655 [2022-02-10 22:42:46,533 INFO L226 Difference]: Without dead ends: 33654 [2022-02-10 22:42:46,534 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:42:46,536 INFO L934 BasicCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:42:46,537 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:42:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33654 states. [2022-02-10 22:42:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33654 to 33654. [2022-02-10 22:42:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33654 states, 33653 states have (on average 4.5550470983270435) internal successors, (153291), 33653 states have internal predecessors, (153291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33654 states to 33654 states and 153291 transitions. [2022-02-10 22:42:48,391 INFO L78 Accepts]: Start accepts. Automaton has 33654 states and 153291 transitions. Word has length 85 [2022-02-10 22:42:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:42:48,392 INFO L470 AbstractCegarLoop]: Abstraction has 33654 states and 153291 transitions. [2022-02-10 22:42:48,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:48,393 INFO L276 IsEmpty]: Start isEmpty. Operand 33654 states and 153291 transitions. [2022-02-10 22:42:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-10 22:42:48,535 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:42:48,535 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:42:48,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:42:48,536 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:42:48,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:42:48,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2079417670, now seen corresponding path program 1 times [2022-02-10 22:42:48,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:42:48,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764491013] [2022-02-10 22:42:48,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:42:48,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:42:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:42:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:42:48,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:42:48,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764491013] [2022-02-10 22:42:48,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764491013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:42:48,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:42:48,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:42:48,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157401882] [2022-02-10 22:42:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:42:48,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:42:48,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:42:48,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:42:48,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:42:48,836 INFO L87 Difference]: Start difference. First operand 33654 states and 153291 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:42:49,776 INFO L93 Difference]: Finished difference Result 51348 states and 228414 transitions. [2022-02-10 22:42:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:42:49,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) Word has length 85 [2022-02-10 22:42:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:42:50,106 INFO L225 Difference]: With dead ends: 51348 [2022-02-10 22:42:50,107 INFO L226 Difference]: Without dead ends: 47760 [2022-02-10 22:42:50,110 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:42:50,111 INFO L934 BasicCegarLoop]: 94 mSDtfsCounter, 137 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:42:50,111 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 454 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:42:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47760 states. [2022-02-10 22:42:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47760 to 40950. [2022-02-10 22:42:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40950 states, 40949 states have (on average 4.510342132897018) internal successors, (184694), 40949 states have internal predecessors, (184694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40950 states to 40950 states and 184694 transitions. [2022-02-10 22:42:51,978 INFO L78 Accepts]: Start accepts. Automaton has 40950 states and 184694 transitions. Word has length 85 [2022-02-10 22:42:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:42:51,979 INFO L470 AbstractCegarLoop]: Abstraction has 40950 states and 184694 transitions. [2022-02-10 22:42:51,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 40950 states and 184694 transitions. [2022-02-10 22:42:52,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:42:52,357 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:42:52,357 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:42:52,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:42:52,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:42:52,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:42:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash -828432796, now seen corresponding path program 1 times [2022-02-10 22:42:52,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:42:52,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962202227] [2022-02-10 22:42:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:42:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:42:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:42:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:42:52,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:42:52,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962202227] [2022-02-10 22:42:52,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962202227] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:42:52,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:42:52,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:42:52,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619106330] [2022-02-10 22:42:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:42:52,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:42:52,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:42:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:42:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:42:52,462 INFO L87 Difference]: Start difference. First operand 40950 states and 184694 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:42:53,169 INFO L93 Difference]: Finished difference Result 54408 states and 243176 transitions. [2022-02-10 22:42:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:42:53,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) Word has length 90 [2022-02-10 22:42:53,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:42:53,413 INFO L225 Difference]: With dead ends: 54408 [2022-02-10 22:42:53,414 INFO L226 Difference]: Without dead ends: 53184 [2022-02-10 22:42:53,414 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:42:53,415 INFO L934 BasicCegarLoop]: 195 mSDtfsCounter, 155 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:42:53,415 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 548 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:42:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53184 states. [2022-02-10 22:42:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53184 to 40284. [2022-02-10 22:42:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40284 states, 40283 states have (on average 4.5207159347615615) internal successors, (182108), 40283 states have internal predecessors, (182108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40284 states to 40284 states and 182108 transitions. [2022-02-10 22:42:55,285 INFO L78 Accepts]: Start accepts. Automaton has 40284 states and 182108 transitions. Word has length 90 [2022-02-10 22:42:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:42:55,285 INFO L470 AbstractCegarLoop]: Abstraction has 40284 states and 182108 transitions. [2022-02-10 22:42:55,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:55,285 INFO L276 IsEmpty]: Start isEmpty. Operand 40284 states and 182108 transitions. [2022-02-10 22:42:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:42:55,416 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:42:55,417 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:42:55,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:42:55,417 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:42:55,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:42:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash 739771262, now seen corresponding path program 1 times [2022-02-10 22:42:55,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:42:55,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65241313] [2022-02-10 22:42:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:42:55,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:42:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:42:55,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:42:55,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:42:55,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65241313] [2022-02-10 22:42:55,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65241313] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:42:55,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074190452] [2022-02-10 22:42:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:42:55,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:42:55,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:42:55,482 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) [2022-02-10 22:42:55,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:42:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:42:55,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:42:55,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:42:55,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:42:55,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:42:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:42:55,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074190452] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:42:55,966 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:42:55,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-02-10 22:42:55,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628044630] [2022-02-10 22:42:55,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:42:55,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:42:55,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:42:55,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:42:55,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:42:55,967 INFO L87 Difference]: Start difference. First operand 40284 states and 182108 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:56,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:42:56,983 INFO L93 Difference]: Finished difference Result 70248 states and 317216 transitions. [2022-02-10 22:42:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:42:56,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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) Word has length 90 [2022-02-10 22:42:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:42:57,813 INFO L225 Difference]: With dead ends: 70248 [2022-02-10 22:42:57,814 INFO L226 Difference]: Without dead ends: 70248 [2022-02-10 22:42:57,816 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:42:57,833 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 466 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:42:57,834 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 1433 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:42:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70248 states. [2022-02-10 22:42:59,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70248 to 43578. [2022-02-10 22:42:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43578 states, 43577 states have (on average 4.527824310989742) internal successors, (197309), 43577 states have internal predecessors, (197309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43578 states to 43578 states and 197309 transitions. [2022-02-10 22:42:59,659 INFO L78 Accepts]: Start accepts. Automaton has 43578 states and 197309 transitions. Word has length 90 [2022-02-10 22:42:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:42:59,659 INFO L470 AbstractCegarLoop]: Abstraction has 43578 states and 197309 transitions. [2022-02-10 22:42:59,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:42:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 43578 states and 197309 transitions. [2022-02-10 22:43:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:00,057 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:00,058 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:00,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 22:43:00,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:00,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:00,275 INFO L85 PathProgramCache]: Analyzing trace with hash 121243518, now seen corresponding path program 2 times [2022-02-10 22:43:00,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:00,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452942356] [2022-02-10 22:43:00,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:00,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:00,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:00,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452942356] [2022-02-10 22:43:00,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452942356] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:43:00,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:43:00,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:43:00,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734343534] [2022-02-10 22:43:00,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:43:00,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:43:00,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:00,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:43:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:43:00,367 INFO L87 Difference]: Start difference. First operand 43578 states and 197309 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:01,142 INFO L93 Difference]: Finished difference Result 68214 states and 305483 transitions. [2022-02-10 22:43:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:43:01,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) Word has length 90 [2022-02-10 22:43:01,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:01,470 INFO L225 Difference]: With dead ends: 68214 [2022-02-10 22:43:01,471 INFO L226 Difference]: Without dead ends: 67116 [2022-02-10 22:43:01,471 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:43:01,471 INFO L934 BasicCegarLoop]: 178 mSDtfsCounter, 190 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:01,472 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 468 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67116 states. [2022-02-10 22:43:03,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67116 to 43758. [2022-02-10 22:43:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43758 states, 43757 states have (on average 4.526887126631167) internal successors, (198083), 43757 states have internal predecessors, (198083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43758 states to 43758 states and 198083 transitions. [2022-02-10 22:43:03,648 INFO L78 Accepts]: Start accepts. Automaton has 43758 states and 198083 transitions. Word has length 90 [2022-02-10 22:43:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:03,648 INFO L470 AbstractCegarLoop]: Abstraction has 43758 states and 198083 transitions. [2022-02-10 22:43:03,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:03,649 INFO L276 IsEmpty]: Start isEmpty. Operand 43758 states and 198083 transitions. [2022-02-10 22:43:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:03,817 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:03,817 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:03,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:43:03,817 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1495435758, now seen corresponding path program 2 times [2022-02-10 22:43:03,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:03,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211748344] [2022-02-10 22:43:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:03,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:03,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:03,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211748344] [2022-02-10 22:43:03,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211748344] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:43:03,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884884296] [2022-02-10 22:43:03,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:43:03,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:03,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:43:03,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:43:03,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:43:03,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:43:03,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:43:03,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:43:03,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:43:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:04,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:43:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:04,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884884296] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:43:04,219 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:43:04,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-02-10 22:43:04,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343217180] [2022-02-10 22:43:04,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:43:04,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:43:04,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:04,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:43:04,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:43:04,220 INFO L87 Difference]: Start difference. First operand 43758 states and 198083 transitions. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:05,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:05,173 INFO L93 Difference]: Finished difference Result 70932 states and 317912 transitions. [2022-02-10 22:43:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:43:05,173 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 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) Word has length 90 [2022-02-10 22:43:05,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:05,519 INFO L225 Difference]: With dead ends: 70932 [2022-02-10 22:43:05,520 INFO L226 Difference]: Without dead ends: 70932 [2022-02-10 22:43:05,520 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:43:05,520 INFO L934 BasicCegarLoop]: 213 mSDtfsCounter, 362 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:05,521 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 929 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:05,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70932 states. [2022-02-10 22:43:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70932 to 46284. [2022-02-10 22:43:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46284 states, 46283 states have (on average 4.533781301989931) internal successors, (209837), 46283 states have internal predecessors, (209837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:07,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46284 states to 46284 states and 209837 transitions. [2022-02-10 22:43:07,851 INFO L78 Accepts]: Start accepts. Automaton has 46284 states and 209837 transitions. Word has length 90 [2022-02-10 22:43:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:07,852 INFO L470 AbstractCegarLoop]: Abstraction has 46284 states and 209837 transitions. [2022-02-10 22:43:07,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:07,852 INFO L276 IsEmpty]: Start isEmpty. Operand 46284 states and 209837 transitions. [2022-02-10 22:43:07,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:07,980 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:07,980 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:08,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-10 22:43:08,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-10 22:43:08,192 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1745536298, now seen corresponding path program 3 times [2022-02-10 22:43:08,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:08,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679121149] [2022-02-10 22:43:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:08,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:08,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:08,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679121149] [2022-02-10 22:43:08,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679121149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:43:08,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:43:08,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:43:08,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448046315] [2022-02-10 22:43:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:43:08,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:43:08,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:43:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:43:08,299 INFO L87 Difference]: Start difference. First operand 46284 states and 209837 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:09,258 INFO L93 Difference]: Finished difference Result 76842 states and 347462 transitions. [2022-02-10 22:43:09,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:43:09,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) Word has length 90 [2022-02-10 22:43:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:09,980 INFO L225 Difference]: With dead ends: 76842 [2022-02-10 22:43:09,980 INFO L226 Difference]: Without dead ends: 76842 [2022-02-10 22:43:09,981 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:43:09,993 INFO L934 BasicCegarLoop]: 194 mSDtfsCounter, 161 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:09,993 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 697 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:10,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76842 states. [2022-02-10 22:43:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76842 to 45348. [2022-02-10 22:43:11,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45348 states, 45347 states have (on average 4.532890819679362) internal successors, (205553), 45347 states have internal predecessors, (205553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45348 states to 45348 states and 205553 transitions. [2022-02-10 22:43:12,090 INFO L78 Accepts]: Start accepts. Automaton has 45348 states and 205553 transitions. Word has length 90 [2022-02-10 22:43:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:12,091 INFO L470 AbstractCegarLoop]: Abstraction has 45348 states and 205553 transitions. [2022-02-10 22:43:12,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 45348 states and 205553 transitions. [2022-02-10 22:43:12,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:12,217 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:12,217 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:12,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:43:12,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:12,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:12,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1401233456, now seen corresponding path program 4 times [2022-02-10 22:43:12,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:12,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821242891] [2022-02-10 22:43:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:12,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:12,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:12,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821242891] [2022-02-10 22:43:12,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821242891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:43:12,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:43:12,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:43:12,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847131173] [2022-02-10 22:43:12,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:43:12,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:43:12,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:12,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:43:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:43:12,297 INFO L87 Difference]: Start difference. First operand 45348 states and 205553 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:13,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:13,121 INFO L93 Difference]: Finished difference Result 71736 states and 325159 transitions. [2022-02-10 22:43:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:43:13,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) Word has length 90 [2022-02-10 22:43:13,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:13,723 INFO L225 Difference]: With dead ends: 71736 [2022-02-10 22:43:13,736 INFO L226 Difference]: Without dead ends: 70656 [2022-02-10 22:43:13,736 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:43:13,737 INFO L934 BasicCegarLoop]: 186 mSDtfsCounter, 147 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:13,737 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 433 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:43:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70656 states. [2022-02-10 22:43:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70656 to 44856. [2022-02-10 22:43:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44856 states, 44855 states have (on average 4.534500055735147) internal successors, (203395), 44855 states have internal predecessors, (203395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44856 states to 44856 states and 203395 transitions. [2022-02-10 22:43:15,570 INFO L78 Accepts]: Start accepts. Automaton has 44856 states and 203395 transitions. Word has length 90 [2022-02-10 22:43:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:15,570 INFO L470 AbstractCegarLoop]: Abstraction has 44856 states and 203395 transitions. [2022-02-10 22:43:15,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 44856 states and 203395 transitions. [2022-02-10 22:43:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:15,685 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:15,685 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:15,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:43:15,699 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:15,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:15,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1852537748, now seen corresponding path program 3 times [2022-02-10 22:43:15,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:15,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253232033] [2022-02-10 22:43:15,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:15,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:15,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:15,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253232033] [2022-02-10 22:43:15,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253232033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:43:15,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942067148] [2022-02-10 22:43:15,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:43:15,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:15,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:43:15,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:43:15,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:43:15,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:43:15,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:43:15,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:43:15,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:43:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:15,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:43:16,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:16,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942067148] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:43:16,100 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:43:16,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-02-10 22:43:16,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499629119] [2022-02-10 22:43:16,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:43:16,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-10 22:43:16,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:16,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-10 22:43:16,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:43:16,101 INFO L87 Difference]: Start difference. First operand 44856 states and 203395 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:17,400 INFO L93 Difference]: Finished difference Result 84372 states and 383953 transitions. [2022-02-10 22:43:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:43:17,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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) Word has length 90 [2022-02-10 22:43:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:17,844 INFO L225 Difference]: With dead ends: 84372 [2022-02-10 22:43:17,844 INFO L226 Difference]: Without dead ends: 84372 [2022-02-10 22:43:17,845 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:43:17,845 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 432 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:17,845 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1465 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:43:17,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84372 states. [2022-02-10 22:43:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84372 to 44856. [2022-02-10 22:43:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44856 states, 44855 states have (on average 4.534500055735147) internal successors, (203395), 44855 states have internal predecessors, (203395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44856 states to 44856 states and 203395 transitions. [2022-02-10 22:43:20,371 INFO L78 Accepts]: Start accepts. Automaton has 44856 states and 203395 transitions. Word has length 90 [2022-02-10 22:43:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:20,372 INFO L470 AbstractCegarLoop]: Abstraction has 44856 states and 203395 transitions. [2022-02-10 22:43:20,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:20,372 INFO L276 IsEmpty]: Start isEmpty. Operand 44856 states and 203395 transitions. [2022-02-10 22:43:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:20,515 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:20,515 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:20,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-10 22:43:20,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:20,716 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:20,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:20,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1402653696, now seen corresponding path program 5 times [2022-02-10 22:43:20,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:20,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703863107] [2022-02-10 22:43:20,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:20,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:20,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:20,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703863107] [2022-02-10 22:43:20,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703863107] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:43:20,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:43:20,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:43:20,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497248610] [2022-02-10 22:43:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:43:20,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:43:20,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:43:20,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:43:20,754 INFO L87 Difference]: Start difference. First operand 44856 states and 203395 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:22,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:22,039 INFO L93 Difference]: Finished difference Result 85380 states and 383203 transitions. [2022-02-10 22:43:22,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:43:22,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) Word has length 90 [2022-02-10 22:43:22,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:22,659 INFO L225 Difference]: With dead ends: 85380 [2022-02-10 22:43:22,660 INFO L226 Difference]: Without dead ends: 84282 [2022-02-10 22:43:22,660 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:43:22,665 INFO L934 BasicCegarLoop]: 194 mSDtfsCounter, 193 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:22,666 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 637 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:23,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84282 states. [2022-02-10 22:43:24,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84282 to 44130. [2022-02-10 22:43:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44130 states, 44129 states have (on average 4.536540596886401) internal successors, (200193), 44129 states have internal predecessors, (200193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:25,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44130 states to 44130 states and 200193 transitions. [2022-02-10 22:43:25,037 INFO L78 Accepts]: Start accepts. Automaton has 44130 states and 200193 transitions. Word has length 90 [2022-02-10 22:43:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:25,037 INFO L470 AbstractCegarLoop]: Abstraction has 44130 states and 200193 transitions. [2022-02-10 22:43:25,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 44130 states and 200193 transitions. [2022-02-10 22:43:25,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:25,162 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:25,162 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:25,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:43:25,163 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:25,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:25,163 INFO L85 PathProgramCache]: Analyzing trace with hash -28461456, now seen corresponding path program 4 times [2022-02-10 22:43:25,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:25,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159413902] [2022-02-10 22:43:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:25,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:25,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:25,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:25,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159413902] [2022-02-10 22:43:25,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159413902] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:43:25,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153897396] [2022-02-10 22:43:25,204 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:43:25,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:25,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:43:25,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:43:25,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:43:25,297 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:43:25,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:43:25,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:43:25,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:43:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:25,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:43:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:25,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153897396] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:43:25,561 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:43:25,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-02-10 22:43:25,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133354853] [2022-02-10 22:43:25,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:43:25,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:43:25,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:25,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:43:25,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:43:25,562 INFO L87 Difference]: Start difference. First operand 44130 states and 200193 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:26,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:26,897 INFO L93 Difference]: Finished difference Result 97134 states and 437211 transitions. [2022-02-10 22:43:26,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:43:26,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 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) Word has length 90 [2022-02-10 22:43:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:27,384 INFO L225 Difference]: With dead ends: 97134 [2022-02-10 22:43:27,384 INFO L226 Difference]: Without dead ends: 97134 [2022-02-10 22:43:27,384 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:43:27,385 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 526 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:27,385 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1421 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:27,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97134 states. [2022-02-10 22:43:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97134 to 41100. [2022-02-10 22:43:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41100 states, 41099 states have (on average 4.532884011776442) internal successors, (186297), 41099 states have internal predecessors, (186297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41100 states to 41100 states and 186297 transitions. [2022-02-10 22:43:29,701 INFO L78 Accepts]: Start accepts. Automaton has 41100 states and 186297 transitions. Word has length 90 [2022-02-10 22:43:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:29,701 INFO L470 AbstractCegarLoop]: Abstraction has 41100 states and 186297 transitions. [2022-02-10 22:43:29,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 41100 states and 186297 transitions. [2022-02-10 22:43:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:43:29,812 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:29,812 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:29,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 22:43:30,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:30,028 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:30,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:30,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1025533784, now seen corresponding path program 6 times [2022-02-10 22:43:30,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:30,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218802080] [2022-02-10 22:43:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:30,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:30,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:30,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:30,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218802080] [2022-02-10 22:43:30,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218802080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:43:30,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:43:30,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:43:30,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137173199] [2022-02-10 22:43:30,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:43:30,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:43:30,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:30,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:43:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:43:30,108 INFO L87 Difference]: Start difference. First operand 41100 states and 186297 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:30,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:30,999 INFO L93 Difference]: Finished difference Result 59352 states and 269712 transitions. [2022-02-10 22:43:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:43:31,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) Word has length 90 [2022-02-10 22:43:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:31,293 INFO L225 Difference]: With dead ends: 59352 [2022-02-10 22:43:31,293 INFO L226 Difference]: Without dead ends: 59352 [2022-02-10 22:43:31,293 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:43:31,294 INFO L934 BasicCegarLoop]: 197 mSDtfsCounter, 143 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:31,294 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 637 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59352 states. [2022-02-10 22:43:32,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59352 to 39984. [2022-02-10 22:43:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39984 states, 39983 states have (on average 4.53290148313033) internal successors, (181239), 39983 states have internal predecessors, (181239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39984 states to 39984 states and 181239 transitions. [2022-02-10 22:43:32,957 INFO L78 Accepts]: Start accepts. Automaton has 39984 states and 181239 transitions. Word has length 90 [2022-02-10 22:43:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:32,958 INFO L470 AbstractCegarLoop]: Abstraction has 39984 states and 181239 transitions. [2022-02-10 22:43:32,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 39984 states and 181239 transitions. [2022-02-10 22:43:33,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-10 22:43:33,064 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:33,065 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:33,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:43:33,073 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:33,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1132110636, now seen corresponding path program 1 times [2022-02-10 22:43:33,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:33,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346009906] [2022-02-10 22:43:33,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:33,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:33,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346009906] [2022-02-10 22:43:33,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346009906] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:43:33,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496527761] [2022-02-10 22:43:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:33,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:33,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:43:33,184 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:43:33,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:43:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:33,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-10 22:43:33,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:43:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:33,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:43:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:34,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496527761] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:43:34,199 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:43:34,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 10 [2022-02-10 22:43:34,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649297664] [2022-02-10 22:43:34,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:43:34,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:43:34,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:34,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:43:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:43:34,201 INFO L87 Difference]: Start difference. First operand 39984 states and 181239 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:36,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:36,472 INFO L93 Difference]: Finished difference Result 192458 states and 868590 transitions. [2022-02-10 22:43:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:43:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 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) Word has length 95 [2022-02-10 22:43:36,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:38,345 INFO L225 Difference]: With dead ends: 192458 [2022-02-10 22:43:38,345 INFO L226 Difference]: Without dead ends: 185759 [2022-02-10 22:43:38,346 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:43:38,346 INFO L934 BasicCegarLoop]: 224 mSDtfsCounter, 433 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:38,346 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 1226 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:38,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185759 states. [2022-02-10 22:43:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185759 to 161708. [2022-02-10 22:43:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161708 states, 161707 states have (on average 4.584050164804244) internal successors, (741273), 161707 states have internal predecessors, (741273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161708 states to 161708 states and 741273 transitions. [2022-02-10 22:43:47,006 INFO L78 Accepts]: Start accepts. Automaton has 161708 states and 741273 transitions. Word has length 95 [2022-02-10 22:43:47,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:43:47,007 INFO L470 AbstractCegarLoop]: Abstraction has 161708 states and 741273 transitions. [2022-02-10 22:43:47,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 161708 states and 741273 transitions. [2022-02-10 22:43:47,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-10 22:43:47,959 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:43:47,959 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:43:47,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 22:43:48,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 22:43:48,176 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:43:48,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:43:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2145070608, now seen corresponding path program 2 times [2022-02-10 22:43:48,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:43:48,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166852985] [2022-02-10 22:43:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:43:48,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:43:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:43:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:48,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:43:48,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166852985] [2022-02-10 22:43:48,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166852985] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:43:48,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786929038] [2022-02-10 22:43:48,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:43:48,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:43:48,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:43:48,284 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:43:48,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:43:48,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:43:48,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:43:48,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-10 22:43:48,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:43:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:43:48,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:43:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:43:49,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786929038] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:43:49,105 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:43:49,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 10 [2022-02-10 22:43:49,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97393047] [2022-02-10 22:43:49,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:43:49,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:43:49,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:43:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:43:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:43:49,106 INFO L87 Difference]: Start difference. First operand 161708 states and 741273 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:43:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:43:53,268 INFO L93 Difference]: Finished difference Result 316548 states and 1439950 transitions. [2022-02-10 22:43:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:43:53,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 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) Word has length 95 [2022-02-10 22:43:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:43:58,158 INFO L225 Difference]: With dead ends: 316548 [2022-02-10 22:43:58,158 INFO L226 Difference]: Without dead ends: 309297 [2022-02-10 22:43:58,159 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:43:58,160 INFO L934 BasicCegarLoop]: 216 mSDtfsCounter, 362 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:43:58,160 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1473 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:43:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309297 states. [2022-02-10 22:44:10,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309297 to 254433. [2022-02-10 22:44:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254433 states, 254432 states have (on average 4.622622154445982) internal successors, (1176143), 254432 states have internal predecessors, (1176143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:44:13,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254433 states to 254433 states and 1176143 transitions. [2022-02-10 22:44:13,291 INFO L78 Accepts]: Start accepts. Automaton has 254433 states and 1176143 transitions. Word has length 95 [2022-02-10 22:44:13,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:44:13,291 INFO L470 AbstractCegarLoop]: Abstraction has 254433 states and 1176143 transitions. [2022-02-10 22:44:13,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:44:13,291 INFO L276 IsEmpty]: Start isEmpty. Operand 254433 states and 1176143 transitions. [2022-02-10 22:44:14,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-10 22:44:14,723 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:44:14,723 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:44:14,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 22:44:14,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:44:14,934 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:44:14,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:44:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1325794030, now seen corresponding path program 1 times [2022-02-10 22:44:14,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:44:14,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987404531] [2022-02-10 22:44:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:44:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:44:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:44:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:44:14,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:44:14,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987404531] [2022-02-10 22:44:14,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987404531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:44:14,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:44:14,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:44:14,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335532965] [2022-02-10 22:44:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:44:14,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:44:14,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:44:14,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:44:14,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:44:14,989 INFO L87 Difference]: Start difference. First operand 254433 states and 1176143 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:44:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:44:21,846 INFO L93 Difference]: Finished difference Result 433297 states and 2000385 transitions. [2022-02-10 22:44:21,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:44:21,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) Word has length 100 [2022-02-10 22:44:21,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:44:27,687 INFO L225 Difference]: With dead ends: 433297 [2022-02-10 22:44:27,687 INFO L226 Difference]: Without dead ends: 432385 [2022-02-10 22:44:27,689 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:44:27,689 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 183 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:44:27,689 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 452 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:44:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432385 states. [2022-02-10 22:44:42,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432385 to 270810. [2022-02-10 22:44:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270810 states, 270809 states have (on average 4.616194439623499) internal successors, (1250107), 270809 states have internal predecessors, (1250107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:44:46,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270810 states to 270810 states and 1250107 transitions. [2022-02-10 22:44:46,680 INFO L78 Accepts]: Start accepts. Automaton has 270810 states and 1250107 transitions. Word has length 100 [2022-02-10 22:44:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:44:46,681 INFO L470 AbstractCegarLoop]: Abstraction has 270810 states and 1250107 transitions. [2022-02-10 22:44:46,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:44:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 270810 states and 1250107 transitions. [2022-02-10 22:44:48,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-10 22:44:48,801 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:44:48,801 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:44:48,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:44:48,802 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 22:44:48,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:44:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash -187785154, now seen corresponding path program 3 times [2022-02-10 22:44:48,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:44:48,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222987566] [2022-02-10 22:44:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:44:48,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:44:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:44:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:44:48,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:44:48,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222987566] [2022-02-10 22:44:48,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222987566] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:44:48,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729209500] [2022-02-10 22:44:48,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:44:48,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:44:48,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:44:48,955 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:44:48,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:44:49,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-10 22:44:49,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:44:49,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:44:49,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:44:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:44:49,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:44:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:44:49,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729209500] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:44:49,862 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:44:49,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-02-10 22:44:49,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506642745] [2022-02-10 22:44:49,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:44:49,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-10 22:44:49,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:44:49,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-10 22:44:49,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:44:49,864 INFO L87 Difference]: Start difference. First operand 270810 states and 1250107 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 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)