/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 02:46:27,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 02:46:27,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 02:46:27,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 02:46:27,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 02:46:27,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 02:46:27,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 02:46:27,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 02:46:27,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 02:46:27,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 02:46:27,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 02:46:27,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 02:46:27,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 02:46:27,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 02:46:27,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 02:46:27,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 02:46:27,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 02:46:27,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 02:46:27,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 02:46:27,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 02:46:27,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 02:46:27,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 02:46:27,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 02:46:27,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 02:46:27,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 02:46:27,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 02:46:27,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 02:46:27,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 02:46:27,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 02:46:27,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 02:46:27,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 02:46:27,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 02:46:27,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 02:46:27,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 02:46:27,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 02:46:27,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 02:46:27,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 02:46:27,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 02:46:27,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 02:46:27,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 02:46:27,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 02:46:27,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-01-19 02:46:27,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 02:46:27,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 02:46:27,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 02:46:27,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 02:46:27,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 02:46:27,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 02:46:27,344 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 02:46:27,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 02:46:27,344 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 02:46:27,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 02:46:27,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 02:46:27,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 02:46:27,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 02:46:27,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 02:46:27,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 02:46:27,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 02:46:27,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 02:46:27,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 02:46:27,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 02:46:27,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 02:46:27,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 02:46:27,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 02:46:27,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 02:46:27,348 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 02:46:27,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 02:46:27,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 02:46:27,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 02:46:27,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 02:46:27,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 02:46:27,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 02:46:27,563 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 02:46:27,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-01-19 02:46:27,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ded495e/0f4b327c3174499a9b63273eb10bd877/FLAG5093c1636 [2022-01-19 02:46:27,986 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 02:46:27,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-01-19 02:46:27,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ded495e/0f4b327c3174499a9b63273eb10bd877/FLAG5093c1636 [2022-01-19 02:46:28,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ded495e/0f4b327c3174499a9b63273eb10bd877 [2022-01-19 02:46:28,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 02:46:28,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 02:46:28,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 02:46:28,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 02:46:28,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 02:46:28,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692260a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28, skipping insertion in model container [2022-01-19 02:46:28,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 02:46:28,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 02:46:28,241 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-three-array-sum.wvr.c[2691,2704] [2022-01-19 02:46:28,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 02:46:28,260 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 02:46:28,277 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-three-array-sum.wvr.c[2691,2704] [2022-01-19 02:46:28,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 02:46:28,291 INFO L208 MainTranslator]: Completed translation [2022-01-19 02:46:28,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28 WrapperNode [2022-01-19 02:46:28,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 02:46:28,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 02:46:28,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 02:46:28,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 02:46:28,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,328 INFO L137 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 150 [2022-01-19 02:46:28,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 02:46:28,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 02:46:28,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 02:46:28,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 02:46:28,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 02:46:28,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 02:46:28,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 02:46:28,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 02:46:28,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (1/1) ... [2022-01-19 02:46:28,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 02:46:28,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:46:28,404 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) [2022-01-19 02:46:28,419 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 [2022-01-19 02:46:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 02:46:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 02:46:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 02:46:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 02:46:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 02:46:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 02:46:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 02:46:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 02:46:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 02:46:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 02:46:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 02:46:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 02:46:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 02:46:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 02:46:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 02:46:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 02:46:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 02:46:28,444 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 02:46:28,576 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 02:46:28,577 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 02:46:28,868 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 02:46:28,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 02:46:28,921 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-19 02:46:28,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 02:46:28 BoogieIcfgContainer [2022-01-19 02:46:28,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 02:46:28,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 02:46:28,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 02:46:28,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 02:46:28,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 02:46:28" (1/3) ... [2022-01-19 02:46:28,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcf2791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 02:46:28, skipping insertion in model container [2022-01-19 02:46:28,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 02:46:28" (2/3) ... [2022-01-19 02:46:28,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcf2791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 02:46:28, skipping insertion in model container [2022-01-19 02:46:28,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 02:46:28" (3/3) ... [2022-01-19 02:46:28,933 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2022-01-19 02:46:28,937 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 02:46:28,937 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 02:46:28,937 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 02:46:28,987 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,987 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,987 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,988 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,988 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,988 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,989 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,990 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,991 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,992 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,994 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,994 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,995 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,995 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,995 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,996 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,996 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,996 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,998 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,999 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:28,999 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,012 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,012 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,012 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,014 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,014 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,015 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,015 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,015 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,015 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,015 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,016 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,016 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,016 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,016 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,017 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,017 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,018 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,018 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,018 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,018 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,018 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,018 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,019 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,019 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,019 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,021 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,022 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,023 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,025 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,025 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 02:46:29,030 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 02:46:29,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 02:46:29,077 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 02:46:29,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 02:46:29,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 218 places, 228 transitions, 480 flow [2022-01-19 02:46:29,213 INFO L129 PetriNetUnfolder]: 20/225 cut-off events. [2022-01-19 02:46:29,213 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 02:46:29,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 225 events. 20/225 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 148 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 184. Up to 3 conditions per place. [2022-01-19 02:46:29,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 228 transitions, 480 flow [2022-01-19 02:46:29,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 214 transitions, 446 flow [2022-01-19 02:46:29,290 INFO L129 PetriNetUnfolder]: 20/213 cut-off events. [2022-01-19 02:46:29,290 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 02:46:29,290 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:29,291 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:29,292 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash 251729409, now seen corresponding path program 1 times [2022-01-19 02:46:29,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:29,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870676435] [2022-01-19 02:46:29,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:29,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:46:29,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:29,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870676435] [2022-01-19 02:46:29,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870676435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:46:29,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:46:29,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 02:46:29,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229802814] [2022-01-19 02:46:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:29,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 02:46:29,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:29,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 02:46:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 02:46:29,612 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 228 [2022-01-19 02:46:29,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 214 transitions, 446 flow. Second operand has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 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) [2022-01-19 02:46:29,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:29,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 228 [2022-01-19 02:46:29,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:29,692 INFO L129 PetriNetUnfolder]: 20/247 cut-off events. [2022-01-19 02:46:29,692 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-01-19 02:46:29,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 247 events. 20/247 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 322 event pairs, 7 based on Foata normal form. 31/258 useless extension candidates. Maximal degree in co-relation 176. Up to 28 conditions per place. [2022-01-19 02:46:29,697 INFO L132 encePairwiseOnDemand]: 215/228 looper letters, 8 selfloop transitions, 0 changer transitions 7/201 dead transitions. [2022-01-19 02:46:29,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 201 transitions, 436 flow [2022-01-19 02:46:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 02:46:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 02:46:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 433 transitions. [2022-01-19 02:46:29,717 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9495614035087719 [2022-01-19 02:46:29,717 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 433 transitions. [2022-01-19 02:46:29,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 433 transitions. [2022-01-19 02:46:29,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:29,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 433 transitions. [2022-01-19 02:46:29,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 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) [2022-01-19 02:46:29,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 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) [2022-01-19 02:46:29,735 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 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) [2022-01-19 02:46:29,737 INFO L186 Difference]: Start difference. First operand has 204 places, 214 transitions, 446 flow. Second operand 2 states and 433 transitions. [2022-01-19 02:46:29,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 201 transitions, 436 flow [2022-01-19 02:46:29,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 201 transitions, 424 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 02:46:29,747 INFO L242 Difference]: Finished difference. Result has 199 places, 194 transitions, 394 flow [2022-01-19 02:46:29,749 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=199, PETRI_TRANSITIONS=194} [2022-01-19 02:46:29,754 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, -5 predicate places. [2022-01-19 02:46:29,755 INFO L470 AbstractCegarLoop]: Abstraction has has 199 places, 194 transitions, 394 flow [2022-01-19 02:46:29,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 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) [2022-01-19 02:46:29,756 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:29,756 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:29,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 02:46:29,757 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -343539870, now seen corresponding path program 1 times [2022-01-19 02:46:29,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:29,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543873625] [2022-01-19 02:46:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:29,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:46:30,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:30,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543873625] [2022-01-19 02:46:30,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543873625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:46:30,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:46:30,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 02:46:30,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080696718] [2022-01-19 02:46:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:30,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:46:30,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:30,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:46:30,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-19 02:46:30,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 228 [2022-01-19 02:46:30,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 194 transitions, 394 flow. Second operand has 7 states, 7 states have (on average 171.28571428571428) internal successors, (1199), 7 states have internal predecessors, (1199), 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) [2022-01-19 02:46:30,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:30,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 228 [2022-01-19 02:46:30,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:30,317 INFO L129 PetriNetUnfolder]: 70/452 cut-off events. [2022-01-19 02:46:30,317 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-01-19 02:46:30,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 452 events. 70/452 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1482 event pairs, 17 based on Foata normal form. 1/413 useless extension candidates. Maximal degree in co-relation 590. Up to 62 conditions per place. [2022-01-19 02:46:30,323 INFO L132 encePairwiseOnDemand]: 220/228 looper letters, 52 selfloop transitions, 6 changer transitions 4/215 dead transitions. [2022-01-19 02:46:30,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 215 transitions, 568 flow [2022-01-19 02:46:30,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 02:46:30,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 02:46:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1225 transitions. [2022-01-19 02:46:30,328 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7675438596491229 [2022-01-19 02:46:30,328 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1225 transitions. [2022-01-19 02:46:30,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1225 transitions. [2022-01-19 02:46:30,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:30,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1225 transitions. [2022-01-19 02:46:30,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2022-01-19 02:46:30,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:30,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:30,346 INFO L186 Difference]: Start difference. First operand has 199 places, 194 transitions, 394 flow. Second operand 7 states and 1225 transitions. [2022-01-19 02:46:30,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 215 transitions, 568 flow [2022-01-19 02:46:30,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 215 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 02:46:30,356 INFO L242 Difference]: Finished difference. Result has 201 places, 197 transitions, 425 flow [2022-01-19 02:46:30,357 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=425, PETRI_PLACES=201, PETRI_TRANSITIONS=197} [2022-01-19 02:46:30,358 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, -3 predicate places. [2022-01-19 02:46:30,358 INFO L470 AbstractCegarLoop]: Abstraction has has 201 places, 197 transitions, 425 flow [2022-01-19 02:46:30,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 171.28571428571428) internal successors, (1199), 7 states have internal predecessors, (1199), 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) [2022-01-19 02:46:30,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:30,359 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:30,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 02:46:30,359 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:30,361 INFO L85 PathProgramCache]: Analyzing trace with hash 95391151, now seen corresponding path program 1 times [2022-01-19 02:46:30,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:30,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341301018] [2022-01-19 02:46:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:30,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:46:30,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:30,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341301018] [2022-01-19 02:46:30,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341301018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:46:30,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:46:30,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 02:46:30,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423136436] [2022-01-19 02:46:30,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:30,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:46:30,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:46:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 02:46:30,577 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 228 [2022-01-19 02:46:30,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 197 transitions, 425 flow. Second operand has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 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) [2022-01-19 02:46:30,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:30,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 228 [2022-01-19 02:46:30,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:31,228 INFO L129 PetriNetUnfolder]: 1164/2746 cut-off events. [2022-01-19 02:46:31,228 INFO L130 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2022-01-19 02:46:31,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4703 conditions, 2746 events. 1164/2746 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 17549 event pairs, 581 based on Foata normal form. 0/2087 useless extension candidates. Maximal degree in co-relation 4696. Up to 1051 conditions per place. [2022-01-19 02:46:31,246 INFO L132 encePairwiseOnDemand]: 209/228 looper letters, 120 selfloop transitions, 28 changer transitions 0/288 dead transitions. [2022-01-19 02:46:31,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 288 transitions, 919 flow [2022-01-19 02:46:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 02:46:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 02:46:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1887 transitions. [2022-01-19 02:46:31,250 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7523923444976076 [2022-01-19 02:46:31,251 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1887 transitions. [2022-01-19 02:46:31,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1887 transitions. [2022-01-19 02:46:31,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:31,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1887 transitions. [2022-01-19 02:46:31,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 171.54545454545453) internal successors, (1887), 11 states have internal predecessors, (1887), 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) [2022-01-19 02:46:31,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 228.0) internal successors, (2736), 12 states have internal predecessors, (2736), 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) [2022-01-19 02:46:31,261 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 228.0) internal successors, (2736), 12 states have internal predecessors, (2736), 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) [2022-01-19 02:46:31,261 INFO L186 Difference]: Start difference. First operand has 201 places, 197 transitions, 425 flow. Second operand 11 states and 1887 transitions. [2022-01-19 02:46:31,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 288 transitions, 919 flow [2022-01-19 02:46:31,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 288 transitions, 913 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 02:46:31,267 INFO L242 Difference]: Finished difference. Result has 210 places, 214 transitions, 552 flow [2022-01-19 02:46:31,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=552, PETRI_PLACES=210, PETRI_TRANSITIONS=214} [2022-01-19 02:46:31,268 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, 6 predicate places. [2022-01-19 02:46:31,269 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 214 transitions, 552 flow [2022-01-19 02:46:31,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 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) [2022-01-19 02:46:31,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:31,270 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:31,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 02:46:31,270 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:31,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:31,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1032173404, now seen corresponding path program 1 times [2022-01-19 02:46:31,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:31,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525391001] [2022-01-19 02:46:31,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:31,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 02:46:31,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:31,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525391001] [2022-01-19 02:46:31,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525391001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 02:46:31,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 02:46:31,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 02:46:31,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574940687] [2022-01-19 02:46:31,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:31,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:46:31,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:46:31,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 02:46:31,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 228 [2022-01-19 02:46:31,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 214 transitions, 552 flow. Second operand has 7 states, 7 states have (on average 162.85714285714286) internal successors, (1140), 7 states have internal predecessors, (1140), 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) [2022-01-19 02:46:31,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:31,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 228 [2022-01-19 02:46:31,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:31,849 INFO L129 PetriNetUnfolder]: 894/2275 cut-off events. [2022-01-19 02:46:31,849 INFO L130 PetriNetUnfolder]: For 585/615 co-relation queries the response was YES. [2022-01-19 02:46:31,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4196 conditions, 2275 events. 894/2275 cut-off events. For 585/615 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 13658 event pairs, 481 based on Foata normal form. 30/1955 useless extension candidates. Maximal degree in co-relation 4186. Up to 1093 conditions per place. [2022-01-19 02:46:31,866 INFO L132 encePairwiseOnDemand]: 209/228 looper letters, 56 selfloop transitions, 14 changer transitions 77/286 dead transitions. [2022-01-19 02:46:31,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 286 transitions, 1018 flow [2022-01-19 02:46:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 02:46:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 02:46:31,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1873 transitions. [2022-01-19 02:46:31,871 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7468102073365231 [2022-01-19 02:46:31,871 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1873 transitions. [2022-01-19 02:46:31,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1873 transitions. [2022-01-19 02:46:31,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:31,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1873 transitions. [2022-01-19 02:46:31,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 170.27272727272728) internal successors, (1873), 11 states have internal predecessors, (1873), 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) [2022-01-19 02:46:31,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 228.0) internal successors, (2736), 12 states have internal predecessors, (2736), 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) [2022-01-19 02:46:31,880 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 228.0) internal successors, (2736), 12 states have internal predecessors, (2736), 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) [2022-01-19 02:46:31,880 INFO L186 Difference]: Start difference. First operand has 210 places, 214 transitions, 552 flow. Second operand 11 states and 1873 transitions. [2022-01-19 02:46:31,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 286 transitions, 1018 flow [2022-01-19 02:46:31,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 286 transitions, 1013 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 02:46:31,890 INFO L242 Difference]: Finished difference. Result has 222 places, 200 transitions, 512 flow [2022-01-19 02:46:31,891 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=512, PETRI_PLACES=222, PETRI_TRANSITIONS=200} [2022-01-19 02:46:31,892 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, 18 predicate places. [2022-01-19 02:46:31,892 INFO L470 AbstractCegarLoop]: Abstraction has has 222 places, 200 transitions, 512 flow [2022-01-19 02:46:31,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 162.85714285714286) internal successors, (1140), 7 states have internal predecessors, (1140), 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) [2022-01-19 02:46:31,893 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:31,893 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:31,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 02:46:31,893 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:31,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash 56603453, now seen corresponding path program 1 times [2022-01-19 02:46:31,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:31,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053211106] [2022-01-19 02:46:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:31,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:32,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:32,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053211106] [2022-01-19 02:46:32,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053211106] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:32,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239294876] [2022-01-19 02:46:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:32,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:46:32,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:46:32,028 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) [2022-01-19 02:46:32,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 02:46:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:32,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 02:46:32,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:46:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:32,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:46:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:33,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239294876] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:33,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:46:33,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 02:46:33,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705169363] [2022-01-19 02:46:33,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:33,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:46:33,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:46:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 02:46:33,062 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 228 [2022-01-19 02:46:33,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 200 transitions, 512 flow. Second operand has 7 states, 7 states have (on average 164.14285714285714) internal successors, (1149), 7 states have internal predecessors, (1149), 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) [2022-01-19 02:46:33,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:33,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 228 [2022-01-19 02:46:33,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:33,307 INFO L129 PetriNetUnfolder]: 635/1510 cut-off events. [2022-01-19 02:46:33,307 INFO L130 PetriNetUnfolder]: For 625/625 co-relation queries the response was YES. [2022-01-19 02:46:33,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 1510 events. 635/1510 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8356 event pairs, 273 based on Foata normal form. 29/1312 useless extension candidates. Maximal degree in co-relation 2977. Up to 603 conditions per place. [2022-01-19 02:46:33,321 INFO L132 encePairwiseOnDemand]: 220/228 looper letters, 65 selfloop transitions, 7 changer transitions 0/211 dead transitions. [2022-01-19 02:46:33,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 211 transitions, 693 flow [2022-01-19 02:46:33,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 02:46:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 02:46:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1167 transitions. [2022-01-19 02:46:33,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.731203007518797 [2022-01-19 02:46:33,325 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1167 transitions. [2022-01-19 02:46:33,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1167 transitions. [2022-01-19 02:46:33,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:33,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1167 transitions. [2022-01-19 02:46:33,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 166.71428571428572) internal successors, (1167), 7 states have internal predecessors, (1167), 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) [2022-01-19 02:46:33,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:33,332 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:33,332 INFO L186 Difference]: Start difference. First operand has 222 places, 200 transitions, 512 flow. Second operand 7 states and 1167 transitions. [2022-01-19 02:46:33,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 211 transitions, 693 flow [2022-01-19 02:46:33,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 211 transitions, 620 flow, removed 14 selfloop flow, removed 14 redundant places. [2022-01-19 02:46:33,340 INFO L242 Difference]: Finished difference. Result has 207 places, 202 transitions, 480 flow [2022-01-19 02:46:33,340 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=480, PETRI_PLACES=207, PETRI_TRANSITIONS=202} [2022-01-19 02:46:33,342 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, 3 predicate places. [2022-01-19 02:46:33,342 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 202 transitions, 480 flow [2022-01-19 02:46:33,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 164.14285714285714) internal successors, (1149), 7 states have internal predecessors, (1149), 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) [2022-01-19 02:46:33,343 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:33,343 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:33,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 02:46:33,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:46:33,568 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:33,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1301123104, now seen corresponding path program 1 times [2022-01-19 02:46:33,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:33,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170974050] [2022-01-19 02:46:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:33,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:33,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:33,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170974050] [2022-01-19 02:46:33,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170974050] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:33,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971754949] [2022-01-19 02:46:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:33,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:46:33,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:46:33,662 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) [2022-01-19 02:46:33,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 02:46:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:33,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 02:46:33,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:46:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:34,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:46:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:34,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971754949] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:34,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:46:34,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 02:46:34,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461707223] [2022-01-19 02:46:34,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:34,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:46:34,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:46:34,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 02:46:34,561 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 228 [2022-01-19 02:46:34,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 202 transitions, 480 flow. Second operand has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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) [2022-01-19 02:46:34,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:34,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 228 [2022-01-19 02:46:34,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:34,735 INFO L129 PetriNetUnfolder]: 449/1048 cut-off events. [2022-01-19 02:46:34,736 INFO L130 PetriNetUnfolder]: For 356/469 co-relation queries the response was YES. [2022-01-19 02:46:34,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 1048 events. 449/1048 cut-off events. For 356/469 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5230 event pairs, 121 based on Foata normal form. 113/960 useless extension candidates. Maximal degree in co-relation 2112. Up to 401 conditions per place. [2022-01-19 02:46:34,744 INFO L132 encePairwiseOnDemand]: 220/228 looper letters, 64 selfloop transitions, 7 changer transitions 0/212 dead transitions. [2022-01-19 02:46:34,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 212 transitions, 657 flow [2022-01-19 02:46:34,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 02:46:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 02:46:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1178 transitions. [2022-01-19 02:46:34,747 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2022-01-19 02:46:34,747 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1178 transitions. [2022-01-19 02:46:34,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1178 transitions. [2022-01-19 02:46:34,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:34,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1178 transitions. [2022-01-19 02:46:34,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.28571428571428) internal successors, (1178), 7 states have internal predecessors, (1178), 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) [2022-01-19 02:46:34,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:34,753 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:34,753 INFO L186 Difference]: Start difference. First operand has 207 places, 202 transitions, 480 flow. Second operand 7 states and 1178 transitions. [2022-01-19 02:46:34,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 212 transitions, 657 flow [2022-01-19 02:46:34,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 212 transitions, 648 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 02:46:34,757 INFO L242 Difference]: Finished difference. Result has 211 places, 203 transitions, 499 flow [2022-01-19 02:46:34,758 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=499, PETRI_PLACES=211, PETRI_TRANSITIONS=203} [2022-01-19 02:46:34,759 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, 7 predicate places. [2022-01-19 02:46:34,760 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 203 transitions, 499 flow [2022-01-19 02:46:34,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 166.0) internal successors, (1162), 7 states have internal predecessors, (1162), 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) [2022-01-19 02:46:34,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:34,761 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:34,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 02:46:34,974 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 [2022-01-19 02:46:34,975 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash 672073108, now seen corresponding path program 1 times [2022-01-19 02:46:34,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:34,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896438302] [2022-01-19 02:46:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:34,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 02:46:35,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:35,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896438302] [2022-01-19 02:46:35,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896438302] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:35,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557279327] [2022-01-19 02:46:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:35,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:46:35,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:46:35,061 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) [2022-01-19 02:46:35,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 02:46:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:35,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 02:46:35,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:46:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 02:46:35,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:46:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-19 02:46:35,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557279327] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:35,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 02:46:35,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-19 02:46:35,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042234399] [2022-01-19 02:46:35,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 02:46:35,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 02:46:35,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 02:46:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 02:46:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-19 02:46:35,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 228 [2022-01-19 02:46:35,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 203 transitions, 499 flow. Second operand has 7 states, 7 states have (on average 165.28571428571428) internal successors, (1157), 7 states have internal predecessors, (1157), 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) [2022-01-19 02:46:35,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 02:46:35,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 228 [2022-01-19 02:46:35,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 02:46:36,101 INFO L129 PetriNetUnfolder]: 440/1049 cut-off events. [2022-01-19 02:46:36,101 INFO L130 PetriNetUnfolder]: For 596/849 co-relation queries the response was YES. [2022-01-19 02:46:36,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2232 conditions, 1049 events. 440/1049 cut-off events. For 596/849 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5184 event pairs, 109 based on Foata normal form. 253/1194 useless extension candidates. Maximal degree in co-relation 2220. Up to 415 conditions per place. [2022-01-19 02:46:36,110 INFO L132 encePairwiseOnDemand]: 220/228 looper letters, 66 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2022-01-19 02:46:36,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 213 transitions, 682 flow [2022-01-19 02:46:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 02:46:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 02:46:36,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1172 transitions. [2022-01-19 02:46:36,113 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7343358395989975 [2022-01-19 02:46:36,113 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1172 transitions. [2022-01-19 02:46:36,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1172 transitions. [2022-01-19 02:46:36,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 02:46:36,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1172 transitions. [2022-01-19 02:46:36,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 167.42857142857142) internal successors, (1172), 7 states have internal predecessors, (1172), 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) [2022-01-19 02:46:36,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:36,120 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 228.0) internal successors, (1824), 8 states have internal predecessors, (1824), 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) [2022-01-19 02:46:36,120 INFO L186 Difference]: Start difference. First operand has 211 places, 203 transitions, 499 flow. Second operand 7 states and 1172 transitions. [2022-01-19 02:46:36,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 213 transitions, 682 flow [2022-01-19 02:46:36,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 213 transitions, 671 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 02:46:36,129 INFO L242 Difference]: Finished difference. Result has 214 places, 204 transitions, 516 flow [2022-01-19 02:46:36,130 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=516, PETRI_PLACES=214, PETRI_TRANSITIONS=204} [2022-01-19 02:46:36,130 INFO L334 CegarLoopForPetriNet]: 204 programPoint places, 10 predicate places. [2022-01-19 02:46:36,130 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 204 transitions, 516 flow [2022-01-19 02:46:36,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 165.28571428571428) internal successors, (1157), 7 states have internal predecessors, (1157), 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) [2022-01-19 02:46:36,131 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 02:46:36,132 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 02:46:36,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 02:46:36,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:46:36,355 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 02:46:36,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 02:46:36,356 INFO L85 PathProgramCache]: Analyzing trace with hash 165031153, now seen corresponding path program 1 times [2022-01-19 02:46:36,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 02:46:36,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723534056] [2022-01-19 02:46:36,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:36,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 02:46:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 02:46:37,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 02:46:37,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723534056] [2022-01-19 02:46:37,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723534056] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 02:46:37,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358673695] [2022-01-19 02:46:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 02:46:37,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 02:46:37,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 02:46:37,704 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) [2022-01-19 02:46:37,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 02:46:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 02:46:37,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 72 conjunts are in the unsatisfiable core [2022-01-19 02:46:37,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 02:46:38,848 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 02:46:39,090 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 02:46:39,780 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 02:46:39,781 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 02:46:40,011 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 02:46:40,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 02:46:40,453 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 02:46:40,567 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 02:46:40,983 INFO L353 Elim1Store]: treesize reduction 36, result has 54.4 percent of original size [2022-01-19 02:46:40,984 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 58 [2022-01-19 02:46:56,518 INFO L353 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2022-01-19 02:46:56,519 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2022-01-19 02:46:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 02:46:56,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 02:47:33,181 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_279 (Array Int Int)) (~A~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_279))) (let ((.cse1 (select .cse3 c_~B~0.base)) (.cse0 (select .cse3 ~A~0.base))) (= (mod (+ (select .cse0 c_~A~0.offset) c_~csum~0 (select .cse1 c_~B~0.offset)) 4294967296) (mod (let ((.cse2 (* c_thread1Thread1of1ForFork0_~i~0 4))) (+ c_~asum~0 (select .cse1 (+ .cse2 c_~B~0.offset)) c_~bsum~0 (select .cse0 (+ c_~A~0.offset .cse2)))) 4294967296))))) is different from false [2022-01-19 02:47:33,259 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int)) (~A~0.base Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_278) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_279))) (let ((.cse0 (select .cse3 ~A~0.base)) (.cse1 (select .cse3 c_~B~0.base))) (= (mod (+ c_~csum~0 (select .cse0 c_~A~0.offset) (select .cse1 c_~B~0.offset)) 4294967296) (mod (let ((.cse2 (* c_thread1Thread1of1ForFork0_~i~0 4))) (+ (select .cse0 (+ c_~A~0.offset .cse2)) c_~asum~0 c_~bsum~0 (select .cse1 (+ .cse2 c_~B~0.offset)))) 4294967296))))) is different from false [2022-01-19 02:47:33,294 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int)) (~A~0.base Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_278) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_279))) (let ((.cse0 (select (select .cse2 ~A~0.base) c_~A~0.offset)) (.cse1 (select (select .cse2 c_~B~0.base) c_~B~0.offset))) (= (mod (+ c_~csum~0 .cse0 .cse1) 4294967296) (mod (+ c_~asum~0 c_~bsum~0 .cse0 .cse1) 4294967296))))) is different from false [2022-01-19 02:47:33,312 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_277 (Array Int Int)) (v_ArrVal_279 (Array Int Int)) (~A~0.base Int)) (let ((.cse2 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_277) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_278) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_279))) (let ((.cse0 (select (select .cse2 ~A~0.base) c_~A~0.offset)) (.cse1 (select (select .cse2 c_~B~0.base) c_~B~0.offset))) (= (mod (+ .cse0 c_~csum~0 .cse1) 4294967296) (mod (+ .cse0 c_~asum~0 c_~bsum~0 .cse1) 4294967296))))) is different from false [2022-01-19 02:47:33,396 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_276 (Array Int Int)) (v_ArrVal_278 (Array Int Int)) (v_ArrVal_277 (Array Int Int)) (v_ArrVal_279 (Array Int Int)) (~A~0.base Int)) (let ((.cse2 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base| v_ArrVal_276) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_277) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_278) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_279))) (let ((.cse0 (select (select .cse2 c_~B~0.base) c_~B~0.offset)) (.cse1 (select (select .cse2 ~A~0.base) c_~A~0.offset))) (= (mod (+ .cse0 c_~csum~0 .cse1) 4294967296) (mod (+ c_~asum~0 .cse0 c_~bsum~0 .cse1) 4294967296))))) is different from false [2022-01-19 02:47:33,428 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_276 (Array Int Int)) (v_ArrVal_278 (Array Int Int)) (v_ArrVal_277 (Array Int Int)) (v_ArrVal_279 (Array Int Int)) (~A~0.base Int)) (let ((.cse2 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_uint_array_#t~malloc22#1.base| v_ArrVal_276) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_277) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_278) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_279))) (let ((.cse0 (select (select .cse2 c_~B~0.base) c_~B~0.offset)) (.cse1 (select (select .cse2 ~A~0.base) c_~A~0.offset))) (= (mod (+ .cse0 .cse1 c_~asum~0 c_~bsum~0) 4294967296) (mod (+ .cse0 .cse1 c_~csum~0) 4294967296))))) is different from false [2022-01-19 02:47:49,708 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:47:49,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 91 [2022-01-19 02:47:49,744 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:47:49,745 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66550 treesize of output 64513 [2022-01-19 02:47:49,928 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:47:49,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64502 treesize of output 63486 [2022-01-19 02:47:50,144 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:47:50,145 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63478 treesize of output 55294 [2022-01-19 02:47:50,384 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:47:50,385 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55286 treesize of output 53246 [2022-01-19 02:47:50,598 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 02:47:50,599 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53238 treesize of output 49150 Received shutdown request... [2022-01-19 03:00:42,536 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 03:00:42,539 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 03:00:42,562 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 03:00:42,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 03:00:42,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:00:42,784 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 194 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-35-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2022-01-19 03:00:42,785 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 03:00:42,785 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 03:00:42,786 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 03:00:42,788 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:00:42,790 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 03:00:42,790 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 03:00:42,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 03:00:42 BasicIcfg [2022-01-19 03:00:42,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 03:00:42,793 INFO L158 Benchmark]: Toolchain (without parser) took 854787.96ms. Allocated memory was 398.5MB in the beginning and 675.3MB in the end (delta: 276.8MB). Free memory was 344.3MB in the beginning and 400.2MB in the end (delta: -55.9MB). Peak memory consumption was 394.5MB. Max. memory is 16.0GB. [2022-01-19 03:00:42,793 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 398.5MB. Free memory was 360.7MB in the beginning and 360.5MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 03:00:42,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.83ms. Allocated memory was 398.5MB in the beginning and 513.8MB in the end (delta: 115.3MB). Free memory was 344.2MB in the beginning and 486.8MB in the end (delta: -142.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.0GB. [2022-01-19 03:00:42,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.83ms. Allocated memory is still 513.8MB. Free memory was 486.8MB in the beginning and 484.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 03:00:42,794 INFO L158 Benchmark]: Boogie Preprocessor took 27.16ms. Allocated memory is still 513.8MB. Free memory was 484.6MB in the beginning and 482.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 03:00:42,794 INFO L158 Benchmark]: RCFGBuilder took 566.42ms. Allocated memory is still 513.8MB. Free memory was 482.6MB in the beginning and 461.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-19 03:00:42,795 INFO L158 Benchmark]: TraceAbstraction took 853867.71ms. Allocated memory was 513.8MB in the beginning and 675.3MB in the end (delta: 161.5MB). Free memory was 460.6MB in the beginning and 400.2MB in the end (delta: 60.4MB). Peak memory consumption was 397.4MB. Max. memory is 16.0GB. [2022-01-19 03:00:42,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 398.5MB. Free memory was 360.7MB in the beginning and 360.5MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 285.83ms. Allocated memory was 398.5MB in the beginning and 513.8MB in the end (delta: 115.3MB). Free memory was 344.2MB in the beginning and 486.8MB in the end (delta: -142.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.83ms. Allocated memory is still 513.8MB. Free memory was 486.8MB in the beginning and 484.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.16ms. Allocated memory is still 513.8MB. Free memory was 484.6MB in the beginning and 482.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 566.42ms. Allocated memory is still 513.8MB. Free memory was 482.6MB in the beginning and 461.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 853867.71ms. Allocated memory was 513.8MB in the beginning and 675.3MB in the end (delta: 161.5MB). Free memory was 460.6MB in the beginning and 400.2MB in the end (delta: 60.4MB). Peak memory consumption was 397.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 194 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-35-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 194 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-35-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 194 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-35-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 194 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-35-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 246 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 853.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1130 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1130 mSDsluCounter, 344 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 685 IncrementalHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 165 mSDtfsCounter, 685 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1158 GetRequests, 1076 SyntacticMatches, 6 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=3, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1719 NumberOfCodeBlocks, 1719 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2251 ConstructedInterpolants, 0 QuantifiedInterpolants, 6498 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1258 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 35/41 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown