./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:05:48,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:05:48,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:05:48,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:05:48,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:05:48,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:05:48,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:05:48,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:05:48,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:05:48,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:05:48,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:05:48,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:05:48,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:05:48,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:05:48,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:05:48,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:05:48,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:05:48,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:05:48,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:05:48,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:05:48,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:05:48,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:05:48,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:05:48,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:05:48,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:05:48,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:05:48,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:05:48,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:05:48,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:05:48,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:05:48,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:05:48,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:05:48,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:05:48,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:05:48,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:05:48,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:05:48,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:05:48,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:05:48,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:05:48,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:05:48,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:05:48,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 03:05:48,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:05:48,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:05:48,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:05:48,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:05:48,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:05:48,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:05:48,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:05:48,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:05:48,571 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:05:48,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:05:48,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 03:05:48,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:05:48,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 03:05:48,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:05:48,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:05:48,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:05:48,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:05:48,573 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 03:05:48,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:05:48,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:05:48,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:05:48,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:05:48,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:05:48,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:05:48,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:05:48,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:05:48,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:05:48,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:05:48,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:05:48,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:05:48,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:05:48,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:05:48,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:05:48,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2021-12-28 03:05:48,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:05:48,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:05:48,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:05:48,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:05:48,895 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:05:48,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-12-28 03:05:48,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52591e391/1a837697a271403cbe10e344db475013/FLAG2b240328e [2021-12-28 03:05:49,244 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:05:49,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-12-28 03:05:49,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52591e391/1a837697a271403cbe10e344db475013/FLAG2b240328e [2021-12-28 03:05:49,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52591e391/1a837697a271403cbe10e344db475013 [2021-12-28 03:05:49,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:05:49,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:05:49,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:05:49,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:05:49,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:05:49,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:49,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3237fb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49, skipping insertion in model container [2021-12-28 03:05:49,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:49,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:05:49,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:05:49,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-12-28 03:05:49,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:05:49,901 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:05:49,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-12-28 03:05:49,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:05:49,980 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:05:49,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49 WrapperNode [2021-12-28 03:05:49,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:05:49,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:05:49,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:05:49,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:05:49,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,058 INFO L137 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 271 [2021-12-28 03:05:50,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:05:50,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:05:50,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:05:50,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:05:50,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:05:50,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:05:50,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:05:50,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:05:50,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (1/1) ... [2021-12-28 03:05:50,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:05:50,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:05:50,157 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) [2021-12-28 03:05:50,194 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 [2021-12-28 03:05:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:05:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:05:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:05:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:05:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-28 03:05:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-28 03:05:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-28 03:05:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-28 03:05:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-28 03:05:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-28 03:05:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:05:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-28 03:05:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-28 03:05:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:05:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:05:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:05:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:05:50,224 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 03:05:50,292 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:05:50,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:05:50,762 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:05:50,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:05:50,917 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-28 03:05:50,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:05:50 BoogieIcfgContainer [2021-12-28 03:05:50,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:05:50,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:05:50,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:05:50,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:05:50,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:05:49" (1/3) ... [2021-12-28 03:05:50,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b36f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:05:50, skipping insertion in model container [2021-12-28 03:05:50,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:05:49" (2/3) ... [2021-12-28 03:05:50,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b36f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:05:50, skipping insertion in model container [2021-12-28 03:05:50,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:05:50" (3/3) ... [2021-12-28 03:05:50,924 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2021-12-28 03:05:50,927 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 03:05:50,928 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:05:50,928 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:05:50,928 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 03:05:50,952 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,952 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,952 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,956 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,957 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,958 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,959 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,959 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,959 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,960 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,961 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,962 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,963 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,964 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,965 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,967 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,967 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,967 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,976 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,976 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,978 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,979 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,980 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,981 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,988 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,989 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:05:50,992 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-28 03:05:51,019 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:05:51,027 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2021-12-28 03:05:51,028 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-28 03:05:51,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 193 transitions, 410 flow [2021-12-28 03:05:51,146 INFO L129 PetriNetUnfolder]: 16/190 cut-off events. [2021-12-28 03:05:51,146 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-28 03:05:51,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 190 events. 16/190 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 108 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2021-12-28 03:05:51,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 193 transitions, 410 flow [2021-12-28 03:05:51,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 179 transitions, 376 flow [2021-12-28 03:05:51,202 INFO L129 PetriNetUnfolder]: 16/178 cut-off events. [2021-12-28 03:05:51,202 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-28 03:05:51,202 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:05:51,203 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] [2021-12-28 03:05:51,203 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:05:51,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:05:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1329929958, now seen corresponding path program 1 times [2021-12-28 03:05:51,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:05:51,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684917233] [2021-12-28 03:05:51,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:51,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:05:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:05:51,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:05:51,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684917233] [2021-12-28 03:05:51,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684917233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:05:51,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:05:51,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 03:05:51,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780971582] [2021-12-28 03:05:51,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:05:51,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 03:05:51,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:05:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 03:05:51,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 03:05:51,501 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 193 [2021-12-28 03:05:51,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 179 transitions, 376 flow. Second operand has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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) [2021-12-28 03:05:51,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:05:51,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 193 [2021-12-28 03:05:51,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:05:51,608 INFO L129 PetriNetUnfolder]: 42/301 cut-off events. [2021-12-28 03:05:51,612 INFO L130 PetriNetUnfolder]: For 50/51 co-relation queries the response was YES. [2021-12-28 03:05:51,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 301 events. 42/301 cut-off events. For 50/51 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 715 event pairs, 15 based on Foata normal form. 45/313 useless extension candidates. Maximal degree in co-relation 216. Up to 59 conditions per place. [2021-12-28 03:05:51,619 INFO L132 encePairwiseOnDemand]: 182/193 looper letters, 9 selfloop transitions, 0 changer transitions 6/168 dead transitions. [2021-12-28 03:05:51,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 168 transitions, 372 flow [2021-12-28 03:05:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 03:05:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-28 03:05:51,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 364 transitions. [2021-12-28 03:05:51,632 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9430051813471503 [2021-12-28 03:05:51,633 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 364 transitions. [2021-12-28 03:05:51,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 364 transitions. [2021-12-28 03:05:51,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:05:51,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 364 transitions. [2021-12-28 03:05:51,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 182.0) internal successors, (364), 2 states have internal predecessors, (364), 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) [2021-12-28 03:05:51,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2021-12-28 03:05:51,650 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2021-12-28 03:05:51,651 INFO L186 Difference]: Start difference. First operand has 173 places, 179 transitions, 376 flow. Second operand 2 states and 364 transitions. [2021-12-28 03:05:51,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 168 transitions, 372 flow [2021-12-28 03:05:51,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 168 transitions, 360 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-28 03:05:51,658 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 330 flow [2021-12-28 03:05:51,660 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=330, PETRI_PLACES=168, PETRI_TRANSITIONS=162} [2021-12-28 03:05:51,666 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2021-12-28 03:05:51,666 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 330 flow [2021-12-28 03:05:51,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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) [2021-12-28 03:05:51,667 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:05:51,668 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] [2021-12-28 03:05:51,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:05:51,669 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:05:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:05:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash -181857671, now seen corresponding path program 1 times [2021-12-28 03:05:51,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:05:51,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676378413] [2021-12-28 03:05:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:51,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:05:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:51,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:05:51,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:05:51,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676378413] [2021-12-28 03:05:51,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676378413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:05:51,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:05:51,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:05:51,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299696013] [2021-12-28 03:05:51,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:05:51,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:05:51,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:05:51,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:05:51,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:05:51,907 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 193 [2021-12-28 03:05:51,912 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 162 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2021-12-28 03:05:51,912 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:05:51,912 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 193 [2021-12-28 03:05:51,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:05:52,136 INFO L129 PetriNetUnfolder]: 396/820 cut-off events. [2021-12-28 03:05:52,136 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-12-28 03:05:52,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 820 events. 396/820 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3317 event pairs, 104 based on Foata normal form. 0/629 useless extension candidates. Maximal degree in co-relation 1431. Up to 305 conditions per place. [2021-12-28 03:05:52,143 INFO L132 encePairwiseOnDemand]: 186/193 looper letters, 51 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2021-12-28 03:05:52,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 171 transitions, 464 flow [2021-12-28 03:05:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:05:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:05:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 820 transitions. [2021-12-28 03:05:52,149 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7081174438687392 [2021-12-28 03:05:52,149 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 820 transitions. [2021-12-28 03:05:52,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 820 transitions. [2021-12-28 03:05:52,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:05:52,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 820 transitions. [2021-12-28 03:05:52,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 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) [2021-12-28 03:05:52,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2021-12-28 03:05:52,155 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2021-12-28 03:05:52,155 INFO L186 Difference]: Start difference. First operand has 168 places, 162 transitions, 330 flow. Second operand 6 states and 820 transitions. [2021-12-28 03:05:52,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 171 transitions, 464 flow [2021-12-28 03:05:52,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 171 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-28 03:05:52,161 INFO L242 Difference]: Finished difference. Result has 169 places, 163 transitions, 355 flow [2021-12-28 03:05:52,162 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2021-12-28 03:05:52,163 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2021-12-28 03:05:52,163 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 355 flow [2021-12-28 03:05:52,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2021-12-28 03:05:52,164 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:05:52,164 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] [2021-12-28 03:05:52,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:05:52,164 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:05:52,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:05:52,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1689496800, now seen corresponding path program 1 times [2021-12-28 03:05:52,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:05:52,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930355581] [2021-12-28 03:05:52,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:52,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:05:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:05:52,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:05:52,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930355581] [2021-12-28 03:05:52,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930355581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:05:52,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:05:52,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 03:05:52,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816938303] [2021-12-28 03:05:52,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:05:52,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 03:05:52,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:05:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 03:05:52,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:05:52,445 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 193 [2021-12-28 03:05:52,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 355 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 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) [2021-12-28 03:05:52,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:05:52,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 193 [2021-12-28 03:05:52,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:05:52,750 INFO L129 PetriNetUnfolder]: 398/875 cut-off events. [2021-12-28 03:05:52,750 INFO L130 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2021-12-28 03:05:52,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 875 events. 398/875 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3427 event pairs, 199 based on Foata normal form. 1/695 useless extension candidates. Maximal degree in co-relation 1708. Up to 525 conditions per place. [2021-12-28 03:05:52,755 INFO L132 encePairwiseOnDemand]: 177/193 looper letters, 72 selfloop transitions, 11 changer transitions 23/202 dead transitions. [2021-12-28 03:05:52,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 202 transitions, 651 flow [2021-12-28 03:05:52,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:05:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 03:05:52,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1087 transitions. [2021-12-28 03:05:52,758 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6257915947035118 [2021-12-28 03:05:52,758 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1087 transitions. [2021-12-28 03:05:52,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1087 transitions. [2021-12-28 03:05:52,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:05:52,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1087 transitions. [2021-12-28 03:05:52,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 120.77777777777777) internal successors, (1087), 9 states have internal predecessors, (1087), 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) [2021-12-28 03:05:52,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 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) [2021-12-28 03:05:52,766 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 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) [2021-12-28 03:05:52,766 INFO L186 Difference]: Start difference. First operand has 169 places, 163 transitions, 355 flow. Second operand 9 states and 1087 transitions. [2021-12-28 03:05:52,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 202 transitions, 651 flow [2021-12-28 03:05:52,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 202 transitions, 639 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-28 03:05:52,773 INFO L242 Difference]: Finished difference. Result has 177 places, 165 transitions, 393 flow [2021-12-28 03:05:52,774 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=393, PETRI_PLACES=177, PETRI_TRANSITIONS=165} [2021-12-28 03:05:52,776 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 4 predicate places. [2021-12-28 03:05:52,776 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 165 transitions, 393 flow [2021-12-28 03:05:52,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 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) [2021-12-28 03:05:52,777 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:05:52,778 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] [2021-12-28 03:05:52,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:05:52,778 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:05:52,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:05:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1851299374, now seen corresponding path program 1 times [2021-12-28 03:05:52,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:05:52,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097584997] [2021-12-28 03:05:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:52,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:05:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-28 03:05:52,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:05:52,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097584997] [2021-12-28 03:05:52,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097584997] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:05:52,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005739708] [2021-12-28 03:05:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:52,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:05:52,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:05:52,900 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) [2021-12-28 03:05:52,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:05:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:53,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 03:05:53,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:05:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-28 03:05:53,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:05:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-28 03:05:53,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005739708] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-28 03:05:53,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-28 03:05:53,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-12-28 03:05:53,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969329733] [2021-12-28 03:05:53,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:05:53,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:05:53,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:05:53,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:05:53,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:05:53,628 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 193 [2021-12-28 03:05:53,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 165 transitions, 393 flow. Second operand has 7 states, 7 states have (on average 143.42857142857142) internal successors, (1004), 7 states have internal predecessors, (1004), 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) [2021-12-28 03:05:53,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:05:53,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 193 [2021-12-28 03:05:53,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:05:53,788 INFO L129 PetriNetUnfolder]: 168/525 cut-off events. [2021-12-28 03:05:53,789 INFO L130 PetriNetUnfolder]: For 180/212 co-relation queries the response was YES. [2021-12-28 03:05:53,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 525 events. 168/525 cut-off events. For 180/212 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1952 event pairs, 45 based on Foata normal form. 32/501 useless extension candidates. Maximal degree in co-relation 945. Up to 146 conditions per place. [2021-12-28 03:05:53,802 INFO L132 encePairwiseOnDemand]: 185/193 looper letters, 48 selfloop transitions, 7 changer transitions 0/174 dead transitions. [2021-12-28 03:05:53,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 174 transitions, 532 flow [2021-12-28 03:05:53,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:05:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-28 03:05:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1018 transitions. [2021-12-28 03:05:53,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7535159141376758 [2021-12-28 03:05:53,805 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1018 transitions. [2021-12-28 03:05:53,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1018 transitions. [2021-12-28 03:05:53,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:05:53,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1018 transitions. [2021-12-28 03:05:53,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.42857142857142) internal successors, (1018), 7 states have internal predecessors, (1018), 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) [2021-12-28 03:05:53,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 193.0) internal successors, (1544), 8 states have internal predecessors, (1544), 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) [2021-12-28 03:05:53,826 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 193.0) internal successors, (1544), 8 states have internal predecessors, (1544), 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) [2021-12-28 03:05:53,826 INFO L186 Difference]: Start difference. First operand has 177 places, 165 transitions, 393 flow. Second operand 7 states and 1018 transitions. [2021-12-28 03:05:53,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 174 transitions, 532 flow [2021-12-28 03:05:53,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 174 transitions, 506 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-12-28 03:05:53,831 INFO L242 Difference]: Finished difference. Result has 177 places, 167 transitions, 401 flow [2021-12-28 03:05:53,832 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=401, PETRI_PLACES=177, PETRI_TRANSITIONS=167} [2021-12-28 03:05:53,833 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 4 predicate places. [2021-12-28 03:05:53,833 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 167 transitions, 401 flow [2021-12-28 03:05:53,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 143.42857142857142) internal successors, (1004), 7 states have internal predecessors, (1004), 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) [2021-12-28 03:05:53,833 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:05:53,833 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] [2021-12-28 03:05:53,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 03:05:54,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:05:54,048 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:05:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:05:54,048 INFO L85 PathProgramCache]: Analyzing trace with hash -651616963, now seen corresponding path program 1 times [2021-12-28 03:05:54,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:05:54,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228407854] [2021-12-28 03:05:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:54,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:05:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:05:55,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:05:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228407854] [2021-12-28 03:05:55,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228407854] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:05:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215575466] [2021-12-28 03:05:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:05:55,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:05:55,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:05:55,689 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) [2021-12-28 03:05:55,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:05:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:05:55,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 73 conjunts are in the unsatisfiable core [2021-12-28 03:05:55,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:05:57,660 INFO L353 Elim1Store]: treesize reduction 28, result has 56.9 percent of original size [2021-12-28 03:05:57,661 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 52 [2021-12-28 03:05:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:05:57,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:05:58,151 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:05:58,152 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 118 [2021-12-28 03:05:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:05:59,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215575466] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:05:59,657 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:05:59,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 30, 20] total 72 [2021-12-28 03:05:59,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229679458] [2021-12-28 03:05:59,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:05:59,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-12-28 03:05:59,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:05:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-12-28 03:05:59,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=773, Invalid=4339, Unknown=0, NotChecked=0, Total=5112 [2021-12-28 03:05:59,669 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 193 [2021-12-28 03:05:59,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 167 transitions, 401 flow. Second operand has 72 states, 72 states have (on average 69.77777777777777) internal successors, (5024), 72 states have internal predecessors, (5024), 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) [2021-12-28 03:05:59,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:05:59,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 193 [2021-12-28 03:05:59,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:06:04,419 INFO L129 PetriNetUnfolder]: 3871/6627 cut-off events. [2021-12-28 03:06:04,419 INFO L130 PetriNetUnfolder]: For 2591/2591 co-relation queries the response was YES. [2021-12-28 03:06:04,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14791 conditions, 6627 events. 3871/6627 cut-off events. For 2591/2591 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 43989 event pairs, 700 based on Foata normal form. 1/5878 useless extension candidates. Maximal degree in co-relation 14781. Up to 2437 conditions per place. [2021-12-28 03:06:04,459 INFO L132 encePairwiseOnDemand]: 144/193 looper letters, 277 selfloop transitions, 103 changer transitions 6/445 dead transitions. [2021-12-28 03:06:04,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 445 transitions, 1945 flow [2021-12-28 03:06:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-12-28 03:06:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-12-28 03:06:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 4210 transitions. [2021-12-28 03:06:04,468 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.37609433625156335 [2021-12-28 03:06:04,468 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 4210 transitions. [2021-12-28 03:06:04,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 4210 transitions. [2021-12-28 03:06:04,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:06:04,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 4210 transitions. [2021-12-28 03:06:04,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 72.58620689655173) internal successors, (4210), 58 states have internal predecessors, (4210), 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) [2021-12-28 03:06:04,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 193.0) internal successors, (11387), 59 states have internal predecessors, (11387), 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) [2021-12-28 03:06:04,495 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 193.0) internal successors, (11387), 59 states have internal predecessors, (11387), 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) [2021-12-28 03:06:04,495 INFO L186 Difference]: Start difference. First operand has 177 places, 167 transitions, 401 flow. Second operand 58 states and 4210 transitions. [2021-12-28 03:06:04,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 445 transitions, 1945 flow [2021-12-28 03:06:04,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 445 transitions, 1914 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-28 03:06:04,509 INFO L242 Difference]: Finished difference. Result has 256 places, 259 transitions, 999 flow [2021-12-28 03:06:04,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=999, PETRI_PLACES=256, PETRI_TRANSITIONS=259} [2021-12-28 03:06:04,511 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 83 predicate places. [2021-12-28 03:06:04,511 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 259 transitions, 999 flow [2021-12-28 03:06:04,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 69.77777777777777) internal successors, (5024), 72 states have internal predecessors, (5024), 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) [2021-12-28 03:06:04,513 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:06:04,513 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] [2021-12-28 03:06:04,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:06:04,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:06:04,735 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:06:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:06:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1238233099, now seen corresponding path program 2 times [2021-12-28 03:06:04,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:06:04,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135399398] [2021-12-28 03:06:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:06:04,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:06:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:06:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:06:05,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:06:05,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135399398] [2021-12-28 03:06:05,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135399398] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:06:05,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359196838] [2021-12-28 03:06:05,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:06:05,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:06:05,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:06:05,788 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) [2021-12-28 03:06:05,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:06:05,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 03:06:05,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:06:05,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 73 conjunts are in the unsatisfiable core [2021-12-28 03:06:05,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:06:07,873 INFO L353 Elim1Store]: treesize reduction 28, result has 56.9 percent of original size [2021-12-28 03:06:07,873 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 52 [2021-12-28 03:06:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:06:08,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:06:08,352 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:08,352 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 118 [2021-12-28 03:06:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:06:09,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359196838] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:06:09,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:06:09,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 30, 20] total 66 [2021-12-28 03:06:09,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821718983] [2021-12-28 03:06:09,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:06:09,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-12-28 03:06:09,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:06:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-12-28 03:06:09,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=3825, Unknown=0, NotChecked=0, Total=4290 [2021-12-28 03:06:09,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 193 [2021-12-28 03:06:09,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 259 transitions, 999 flow. Second operand has 66 states, 66 states have (on average 76.96969696969697) internal successors, (5080), 66 states have internal predecessors, (5080), 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) [2021-12-28 03:06:09,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:06:09,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 193 [2021-12-28 03:06:09,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:06:15,612 INFO L129 PetriNetUnfolder]: 11191/18168 cut-off events. [2021-12-28 03:06:15,613 INFO L130 PetriNetUnfolder]: For 15208/15208 co-relation queries the response was YES. [2021-12-28 03:06:15,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49639 conditions, 18168 events. 11191/18168 cut-off events. For 15208/15208 co-relation queries the response was YES. Maximal size of possible extension queue 882. Compared 133456 event pairs, 1400 based on Foata normal form. 2/17030 useless extension candidates. Maximal degree in co-relation 49603. Up to 5468 conditions per place. [2021-12-28 03:06:15,825 INFO L132 encePairwiseOnDemand]: 143/193 looper letters, 400 selfloop transitions, 291 changer transitions 15/766 dead transitions. [2021-12-28 03:06:15,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 766 transitions, 4323 flow [2021-12-28 03:06:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-12-28 03:06:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-12-28 03:06:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 5706 transitions. [2021-12-28 03:06:15,847 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.41640516675180617 [2021-12-28 03:06:15,847 INFO L72 ComplementDD]: Start complementDD. Operand 71 states and 5706 transitions. [2021-12-28 03:06:15,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 5706 transitions. [2021-12-28 03:06:15,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:06:15,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 71 states and 5706 transitions. [2021-12-28 03:06:15,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 72 states, 71 states have (on average 80.36619718309859) internal successors, (5706), 71 states have internal predecessors, (5706), 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) [2021-12-28 03:06:15,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 72 states, 72 states have (on average 193.0) internal successors, (13896), 72 states have internal predecessors, (13896), 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) [2021-12-28 03:06:15,888 INFO L81 ComplementDD]: Finished complementDD. Result has 72 states, 72 states have (on average 193.0) internal successors, (13896), 72 states have internal predecessors, (13896), 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) [2021-12-28 03:06:15,888 INFO L186 Difference]: Start difference. First operand has 256 places, 259 transitions, 999 flow. Second operand 71 states and 5706 transitions. [2021-12-28 03:06:15,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 766 transitions, 4323 flow [2021-12-28 03:06:15,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 766 transitions, 4287 flow, removed 9 selfloop flow, removed 11 redundant places. [2021-12-28 03:06:15,982 INFO L242 Difference]: Finished difference. Result has 350 places, 472 transitions, 3174 flow [2021-12-28 03:06:15,983 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=71, PETRI_FLOW=3174, PETRI_PLACES=350, PETRI_TRANSITIONS=472} [2021-12-28 03:06:15,985 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 177 predicate places. [2021-12-28 03:06:15,985 INFO L470 AbstractCegarLoop]: Abstraction has has 350 places, 472 transitions, 3174 flow [2021-12-28 03:06:15,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 76.96969696969697) internal successors, (5080), 66 states have internal predecessors, (5080), 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) [2021-12-28 03:06:15,987 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:06:15,987 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] [2021-12-28 03:06:16,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-28 03:06:16,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:06:16,223 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:06:16,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:06:16,224 INFO L85 PathProgramCache]: Analyzing trace with hash 594774863, now seen corresponding path program 3 times [2021-12-28 03:06:16,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:06:16,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697090275] [2021-12-28 03:06:16,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:06:16,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:06:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:06:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:06:17,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:06:17,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697090275] [2021-12-28 03:06:17,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697090275] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:06:17,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606982608] [2021-12-28 03:06:17,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 03:06:17,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:06:17,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:06:17,608 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) [2021-12-28 03:06:17,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 03:06:17,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-28 03:06:17,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:06:17,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 68 conjunts are in the unsatisfiable core [2021-12-28 03:06:17,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:06:19,166 INFO L353 Elim1Store]: treesize reduction 28, result has 56.9 percent of original size [2021-12-28 03:06:19,166 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 52 [2021-12-28 03:06:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:06:19,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:06:19,530 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:19,530 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 118 [2021-12-28 03:06:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:06:20,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606982608] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:06:20,545 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:06:20,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 29, 18] total 70 [2021-12-28 03:06:20,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786063636] [2021-12-28 03:06:20,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:06:20,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-12-28 03:06:20,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:06:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-12-28 03:06:20,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=655, Invalid=4175, Unknown=0, NotChecked=0, Total=4830 [2021-12-28 03:06:20,550 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 193 [2021-12-28 03:06:20,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 472 transitions, 3174 flow. Second operand has 70 states, 70 states have (on average 66.91428571428571) internal successors, (4684), 70 states have internal predecessors, (4684), 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) [2021-12-28 03:06:20,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:06:20,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 193 [2021-12-28 03:06:20,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:06:31,477 INFO L129 PetriNetUnfolder]: 15330/25112 cut-off events. [2021-12-28 03:06:31,480 INFO L130 PetriNetUnfolder]: For 84837/84948 co-relation queries the response was YES. [2021-12-28 03:06:31,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96701 conditions, 25112 events. 15330/25112 cut-off events. For 84837/84948 co-relation queries the response was YES. Maximal size of possible extension queue 1184. Compared 195779 event pairs, 2551 based on Foata normal form. 34/24942 useless extension candidates. Maximal degree in co-relation 96630. Up to 7123 conditions per place. [2021-12-28 03:06:32,017 INFO L132 encePairwiseOnDemand]: 138/193 looper letters, 473 selfloop transitions, 517 changer transitions 15/1061 dead transitions. [2021-12-28 03:06:32,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 1061 transitions, 8977 flow [2021-12-28 03:06:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-12-28 03:06:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-12-28 03:06:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 7367 transitions. [2021-12-28 03:06:32,034 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3567381724855939 [2021-12-28 03:06:32,035 INFO L72 ComplementDD]: Start complementDD. Operand 107 states and 7367 transitions. [2021-12-28 03:06:32,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 7367 transitions. [2021-12-28 03:06:32,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:06:32,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 107 states and 7367 transitions. [2021-12-28 03:06:32,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 108 states, 107 states have (on average 68.85046728971963) internal successors, (7367), 107 states have internal predecessors, (7367), 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) [2021-12-28 03:06:32,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 108 states, 108 states have (on average 193.0) internal successors, (20844), 108 states have internal predecessors, (20844), 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) [2021-12-28 03:06:32,093 INFO L81 ComplementDD]: Finished complementDD. Result has 108 states, 108 states have (on average 193.0) internal successors, (20844), 108 states have internal predecessors, (20844), 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) [2021-12-28 03:06:32,093 INFO L186 Difference]: Start difference. First operand has 350 places, 472 transitions, 3174 flow. Second operand 107 states and 7367 transitions. [2021-12-28 03:06:32,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 1061 transitions, 8977 flow [2021-12-28 03:06:32,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1061 transitions, 8750 flow, removed 73 selfloop flow, removed 26 redundant places. [2021-12-28 03:06:32,986 INFO L242 Difference]: Finished difference. Result has 467 places, 724 transitions, 6957 flow [2021-12-28 03:06:32,986 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=3037, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=107, PETRI_FLOW=6957, PETRI_PLACES=467, PETRI_TRANSITIONS=724} [2021-12-28 03:06:32,987 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 294 predicate places. [2021-12-28 03:06:32,987 INFO L470 AbstractCegarLoop]: Abstraction has has 467 places, 724 transitions, 6957 flow [2021-12-28 03:06:32,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 66.91428571428571) internal successors, (4684), 70 states have internal predecessors, (4684), 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) [2021-12-28 03:06:32,988 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:06:32,989 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] [2021-12-28 03:06:33,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 03:06:33,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:06:33,208 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-28 03:06:33,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:06:33,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2096742083, now seen corresponding path program 4 times [2021-12-28 03:06:33,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:06:33,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515104830] [2021-12-28 03:06:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:06:33,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:06:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:06:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:06:34,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:06:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515104830] [2021-12-28 03:06:34,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515104830] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:06:34,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490502327] [2021-12-28 03:06:34,685 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 03:06:34,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:06:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:06:34,686 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:06:34,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 03:06:34,810 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 03:06:34,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:06:34,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 100 conjunts are in the unsatisfiable core [2021-12-28 03:06:34,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:06:34,864 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 [2021-12-28 03:06:35,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:06:35,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-28 03:06:36,253 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 [2021-12-28 03:06:36,727 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 [2021-12-28 03:06:37,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:06:37,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:06:37,115 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-28 03:06:37,115 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-12-28 03:06:37,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:06:37,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 03:06:37,253 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-28 03:06:37,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-12-28 03:06:37,562 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:37,563 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 98 [2021-12-28 03:06:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:06:37,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:06:38,281 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_254 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (< 0 ~M~0) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~B~0.base) (+ .cse1 c_~B~0.offset)) c_~res2~0 (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) c_~res1~0))) is different from false [2021-12-28 03:06:38,405 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (< 0 ~M~0) (= (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)) c_~res2~0 (select (select .cse0 c_~B~0.base) (+ .cse1 c_~B~0.offset)))) c_~res1~0))) is different from false [2021-12-28 03:06:38,435 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (= (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)) c_~res2~0 (select (select .cse0 c_~B~0.base) (+ .cse1 c_~B~0.offset)))) (let ((.cse2 (* |c_thread1Thread1of1ForFork2_~i~0#1| 4))) (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse2)) (select (select |c_#memory_int| c_~B~0.base) (+ c_~B~0.offset .cse2)) c_~res1~0))) (<= (+ 2 ~M~0) c_~N~0) (< 0 ~M~0))) is different from false [2021-12-28 03:06:38,464 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (< 0 ~M~0) (= (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)) c_~res2~0 (select (select .cse0 c_~B~0.base) (+ .cse1 c_~B~0.offset)))) (+ (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (select (select |c_#memory_int| c_~B~0.base) c_~B~0.offset) c_~res1~0)))) is different from false [2021-12-28 03:06:38,547 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_252 (Array Int Int)) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_252))) (= (+ c_~res1~0 (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select .cse0 c_~B~0.base) c_~B~0.offset)) (let ((.cse1 (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse2 (* ~M~0 4))) (+ (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) c_~res2~0 (select (select .cse1 c_~B~0.base) (+ .cse2 c_~B~0.offset)))))) (< 0 ~M~0))) is different from false [2021-12-28 03:06:38,694 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_252 (Array Int Int)) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_252))) (= (+ c_~res1~0 (select (select .cse0 |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) (select (select .cse0 c_~A~0.base) c_~A~0.offset)) (let ((.cse1 (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse2 (* ~M~0 4))) (+ (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) c_~res2~0 (select (select .cse1 |c_ULTIMATE.start_main_#t~ret19#1.base|) (+ .cse2 |c_ULTIMATE.start_main_#t~ret19#1.offset|)))))) (< 0 ~M~0))) is different from false [2021-12-28 03:06:38,726 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_252 (Array Int Int)) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (< 0 ~M~0) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_252))) (= (let ((.cse0 (store (store .cse2 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)) c_~res2~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) (+ (select (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) c_~res1~0 (select (select .cse2 c_~A~0.base) c_~A~0.offset)))))) is different from false [2021-12-28 03:06:38,744 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_252 (Array Int Int)) (v_ArrVal_254 (Array Int Int)) (v_ArrVal_253 (Array Int Int))) (or (<= (+ 2 ~M~0) c_~N~0) (< 0 ~M~0) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_252))) (= (let ((.cse0 (store (store .cse2 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_253) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_254)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)) c_~res2~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (+ c_~res1~0 (select (select .cse2 c_~A~0.base) c_~A~0.offset) (select (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))))) is different from false [2021-12-28 03:06:38,830 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:38,830 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 105 treesize of output 70 [2021-12-28 03:06:38,890 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:38,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38390 treesize of output 32330 [2021-12-28 03:06:39,017 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:39,018 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 32246 treesize of output 26118 [2021-12-28 03:06:39,153 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:39,154 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 26102 treesize of output 23046 [2021-12-28 03:06:39,327 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 03:06:39,327 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 23030 treesize of output 19518