./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa --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-hotfix-svcomp22-839c364 [2021-12-07 00:18:31,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:18:31,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:18:31,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:18:31,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:18:31,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:18:31,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:18:31,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:18:31,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:18:31,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:18:31,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:18:31,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:18:31,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:18:31,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:18:31,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:18:31,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:18:31,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:18:31,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:18:31,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:18:31,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:18:31,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:18:31,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:18:31,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:18:31,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:18:31,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:18:31,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:18:31,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:18:31,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:18:31,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:18:31,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:18:31,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:18:31,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:18:31,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:18:31,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:18:31,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:18:31,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:18:31,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:18:31,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:18:31,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:18:31,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:18:31,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:18:31,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:18:31,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:18:31,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:18:31,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:18:31,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:18:31,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:18:31,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:18:31,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:18:31,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:18:31,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:18:31,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:18:31,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:18:31,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:18:31,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:18:31,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:18:31,688 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2021-12-07 00:18:31,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:18:31,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:18:31,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:18:31,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:18:31,888 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:18:31,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-12-07 00:18:31,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/data/22f334893/0012c0e07ce24369a21c8f468d2bbd6a/FLAG684e0bcdb [2021-12-07 00:18:32,301 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:18:32,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2021-12-07 00:18:32,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/data/22f334893/0012c0e07ce24369a21c8f468d2bbd6a/FLAG684e0bcdb [2021-12-07 00:18:32,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/data/22f334893/0012c0e07ce24369a21c8f468d2bbd6a [2021-12-07 00:18:32,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:18:32,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:18:32,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:18:32,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:18:32,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:18:32,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a82544f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32, skipping insertion in model container [2021-12-07 00:18:32,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:18:32,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:18:32,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-12-07 00:18:32,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:18:32,490 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:18:32,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2021-12-07 00:18:32,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:18:32,521 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:18:32,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32 WrapperNode [2021-12-07 00:18:32,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:18:32,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:18:32,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:18:32,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:18:32,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,566 INFO L137 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 271 [2021-12-07 00:18:32,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:18:32,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:18:32,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:18:32,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:18:32,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:18:32,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:18:32,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:18:32,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:18:32,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (1/1) ... [2021-12-07 00:18:32,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:18:32,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:18:32,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:18:32,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:18:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:18:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:18:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:18:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:18:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-07 00:18:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-07 00:18:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-07 00:18:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-07 00:18:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-07 00:18:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-07 00:18:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:18:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-07 00:18:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-07 00:18:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:18:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:18:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:18:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:18:32,670 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 00:18:32,751 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:18:32,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:18:33,043 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:18:33,185 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:18:33,185 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-07 00:18:33,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:18:33 BoogieIcfgContainer [2021-12-07 00:18:33,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:18:33,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:18:33,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:18:33,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:18:33,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:18:32" (1/3) ... [2021-12-07 00:18:33,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e35b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:18:33, skipping insertion in model container [2021-12-07 00:18:33,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:18:32" (2/3) ... [2021-12-07 00:18:33,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e35b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:18:33, skipping insertion in model container [2021-12-07 00:18:33,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:18:33" (3/3) ... [2021-12-07 00:18:33,192 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2021-12-07 00:18:33,196 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 00:18:33,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:18:33,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:18:33,196 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 00:18:33,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,233 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~i~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,237 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,240 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,240 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,240 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:18:33,241 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-07 00:18:33,276 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:18:33,281 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 [2021-12-07 00:18:33,281 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-07 00:18:33,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 193 transitions, 410 flow [2021-12-07 00:18:33,343 INFO L129 PetriNetUnfolder]: 16/190 cut-off events. [2021-12-07 00:18:33,343 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-07 00:18:33,346 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. [2021-12-07 00:18:33,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 193 transitions, 410 flow [2021-12-07 00:18:33,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 179 transitions, 376 flow [2021-12-07 00:18:33,380 INFO L129 PetriNetUnfolder]: 16/178 cut-off events. [2021-12-07 00:18:33,380 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-07 00:18:33,380 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:18:33,381 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] [2021-12-07 00:18:33,381 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-07 00:18:33,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1329929958, now seen corresponding path program 1 times [2021-12-07 00:18:33,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:33,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628206948] [2021-12-07 00:18:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:33,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:18:33,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:33,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628206948] [2021-12-07 00:18:33,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628206948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:18:33,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:18:33,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:18:33,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568065695] [2021-12-07 00:18:33,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:18:33,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:18:33,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:18:33,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:18:33,630 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 193 [2021-12-07 00:18:33,634 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) [2021-12-07 00:18:33,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:18:33,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 193 [2021-12-07 00:18:33,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:18:33,715 INFO L129 PetriNetUnfolder]: 42/301 cut-off events. [2021-12-07 00:18:33,715 INFO L130 PetriNetUnfolder]: For 50/51 co-relation queries the response was YES. [2021-12-07 00:18:33,717 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. [2021-12-07 00:18:33,719 INFO L132 encePairwiseOnDemand]: 182/193 looper letters, 9 selfloop transitions, 0 changer transitions 6/168 dead transitions. [2021-12-07 00:18:33,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 168 transitions, 372 flow [2021-12-07 00:18:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:18:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-07 00:18:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 364 transitions. [2021-12-07 00:18:33,730 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9430051813471503 [2021-12-07 00:18:33,731 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 364 transitions. [2021-12-07 00:18:33,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 364 transitions. [2021-12-07 00:18:33,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:18:33,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 364 transitions. [2021-12-07 00:18:33,738 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) [2021-12-07 00:18:33,743 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) [2021-12-07 00:18:33,743 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) [2021-12-07 00:18:33,745 INFO L186 Difference]: Start difference. First operand has 173 places, 179 transitions, 376 flow. Second operand 2 states and 364 transitions. [2021-12-07 00:18:33,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 168 transitions, 372 flow [2021-12-07 00:18:33,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 168 transitions, 360 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-07 00:18:33,752 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 330 flow [2021-12-07 00:18:33,754 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} [2021-12-07 00:18:33,757 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2021-12-07 00:18:33,757 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 330 flow [2021-12-07 00:18:33,757 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) [2021-12-07 00:18:33,758 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:18:33,758 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] [2021-12-07 00:18:33,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:18:33,758 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-07 00:18:33,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:33,759 INFO L85 PathProgramCache]: Analyzing trace with hash -181857671, now seen corresponding path program 1 times [2021-12-07 00:18:33,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:33,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502484323] [2021-12-07 00:18:33,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:33,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:18:33,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:33,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502484323] [2021-12-07 00:18:33,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502484323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:18:33,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:18:33,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:18:33,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912043686] [2021-12-07 00:18:33,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:18:33,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:18:33,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:33,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:18:33,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:18:33,956 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 193 [2021-12-07 00:18:33,957 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) [2021-12-07 00:18:33,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:18:33,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 193 [2021-12-07 00:18:33,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:18:34,145 INFO L129 PetriNetUnfolder]: 396/820 cut-off events. [2021-12-07 00:18:34,146 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-12-07 00:18:34,148 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. [2021-12-07 00:18:34,160 INFO L132 encePairwiseOnDemand]: 186/193 looper letters, 51 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2021-12-07 00:18:34,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 171 transitions, 464 flow [2021-12-07 00:18:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:18:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-07 00:18:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 820 transitions. [2021-12-07 00:18:34,165 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7081174438687392 [2021-12-07 00:18:34,165 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 820 transitions. [2021-12-07 00:18:34,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 820 transitions. [2021-12-07 00:18:34,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:18:34,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 820 transitions. [2021-12-07 00:18:34,169 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) [2021-12-07 00:18:34,172 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) [2021-12-07 00:18:34,173 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) [2021-12-07 00:18:34,173 INFO L186 Difference]: Start difference. First operand has 168 places, 162 transitions, 330 flow. Second operand 6 states and 820 transitions. [2021-12-07 00:18:34,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 171 transitions, 464 flow [2021-12-07 00:18:34,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 171 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-07 00:18:34,177 INFO L242 Difference]: Finished difference. Result has 169 places, 163 transitions, 355 flow [2021-12-07 00:18:34,177 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} [2021-12-07 00:18:34,178 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2021-12-07 00:18:34,178 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 355 flow [2021-12-07 00:18:34,179 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) [2021-12-07 00:18:34,179 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:18:34,179 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] [2021-12-07 00:18:34,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:18:34,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-07 00:18:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:34,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1689496800, now seen corresponding path program 1 times [2021-12-07 00:18:34,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:34,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565179956] [2021-12-07 00:18:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:34,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:18:34,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:34,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565179956] [2021-12-07 00:18:34,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565179956] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:18:34,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:18:34,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:18:34,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045574464] [2021-12-07 00:18:34,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:18:34,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:18:34,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:34,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:18:34,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:18:34,401 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 193 [2021-12-07 00:18:34,402 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) [2021-12-07 00:18:34,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:18:34,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 193 [2021-12-07 00:18:34,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:18:34,683 INFO L129 PetriNetUnfolder]: 398/875 cut-off events. [2021-12-07 00:18:34,684 INFO L130 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2021-12-07 00:18:34,686 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. [2021-12-07 00:18:34,691 INFO L132 encePairwiseOnDemand]: 177/193 looper letters, 72 selfloop transitions, 11 changer transitions 23/202 dead transitions. [2021-12-07 00:18:34,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 202 transitions, 651 flow [2021-12-07 00:18:34,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 00:18:34,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-07 00:18:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1087 transitions. [2021-12-07 00:18:34,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6257915947035118 [2021-12-07 00:18:34,695 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1087 transitions. [2021-12-07 00:18:34,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1087 transitions. [2021-12-07 00:18:34,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:18:34,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1087 transitions. [2021-12-07 00:18:34,705 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) [2021-12-07 00:18:34,708 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) [2021-12-07 00:18:34,710 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) [2021-12-07 00:18:34,710 INFO L186 Difference]: Start difference. First operand has 169 places, 163 transitions, 355 flow. Second operand 9 states and 1087 transitions. [2021-12-07 00:18:34,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 202 transitions, 651 flow [2021-12-07 00:18:34,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 202 transitions, 639 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-07 00:18:34,714 INFO L242 Difference]: Finished difference. Result has 177 places, 165 transitions, 393 flow [2021-12-07 00:18:34,715 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} [2021-12-07 00:18:34,715 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 4 predicate places. [2021-12-07 00:18:34,715 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 165 transitions, 393 flow [2021-12-07 00:18:34,716 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) [2021-12-07 00:18:34,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:18:34,716 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] [2021-12-07 00:18:34,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:18:34,717 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-07 00:18:34,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:34,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1851299374, now seen corresponding path program 1 times [2021-12-07 00:18:34,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:34,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673259548] [2021-12-07 00:18:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:34,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:18:34,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:34,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673259548] [2021-12-07 00:18:34,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673259548] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:18:34,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795296013] [2021-12-07 00:18:34,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:34,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:18:34,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:18:34,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:18:34,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:18:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:34,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:18:34,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:18:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:18:35,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:18:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 00:18:35,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795296013] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 00:18:35,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:18:35,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-12-07 00:18:35,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296042250] [2021-12-07 00:18:35,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:18:35,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:18:35,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:18:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:18:35,390 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 193 [2021-12-07 00:18:35,392 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) [2021-12-07 00:18:35,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:18:35,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 193 [2021-12-07 00:18:35,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:18:35,522 INFO L129 PetriNetUnfolder]: 168/525 cut-off events. [2021-12-07 00:18:35,522 INFO L130 PetriNetUnfolder]: For 180/212 co-relation queries the response was YES. [2021-12-07 00:18:35,523 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. [2021-12-07 00:18:35,526 INFO L132 encePairwiseOnDemand]: 185/193 looper letters, 48 selfloop transitions, 7 changer transitions 0/174 dead transitions. [2021-12-07 00:18:35,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 174 transitions, 532 flow [2021-12-07 00:18:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:18:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 00:18:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1018 transitions. [2021-12-07 00:18:35,529 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7535159141376758 [2021-12-07 00:18:35,529 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1018 transitions. [2021-12-07 00:18:35,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1018 transitions. [2021-12-07 00:18:35,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:18:35,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1018 transitions. [2021-12-07 00:18:35,533 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) [2021-12-07 00:18:35,535 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) [2021-12-07 00:18:35,536 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) [2021-12-07 00:18:35,536 INFO L186 Difference]: Start difference. First operand has 177 places, 165 transitions, 393 flow. Second operand 7 states and 1018 transitions. [2021-12-07 00:18:35,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 174 transitions, 532 flow [2021-12-07 00:18:35,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 174 transitions, 506 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-12-07 00:18:35,540 INFO L242 Difference]: Finished difference. Result has 177 places, 167 transitions, 401 flow [2021-12-07 00:18:35,541 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} [2021-12-07 00:18:35,541 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 4 predicate places. [2021-12-07 00:18:35,542 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 167 transitions, 401 flow [2021-12-07 00:18:35,542 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) [2021-12-07 00:18:35,542 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:18:35,542 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] [2021-12-07 00:18:35,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:18:35,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:18:35,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-07 00:18:35,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:18:35,744 INFO L85 PathProgramCache]: Analyzing trace with hash -651616963, now seen corresponding path program 1 times [2021-12-07 00:18:35,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:18:35,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449885816] [2021-12-07 00:18:35,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:35,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:18:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:18:36,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:18:36,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449885816] [2021-12-07 00:18:36,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449885816] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:18:36,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581909284] [2021-12-07 00:18:36,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:18:36,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:18:36,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:18:36,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:18:36,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:18:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:18:36,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 94 conjunts are in the unsatisfiable core [2021-12-07 00:18:36,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:18:37,052 INFO L388 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 [2021-12-07 00:18:37,096 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-07 00:18:37,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 18 [2021-12-07 00:18:37,545 INFO L354 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2021-12-07 00:18:37,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2021-12-07 00:18:38,539 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 00:18:38,540 INFO L388 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 15 treesize of output 15 [2021-12-07 00:18:38,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:18:39,085 INFO L388 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 [2021-12-07 00:18:39,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:18:39,258 INFO L388 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 [2021-12-07 00:18:39,622 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:18:39,623 INFO L388 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 33 treesize of output 93 [2021-12-07 00:18:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:18:39,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:18:45,194 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_136 (Array Int Int)) (~A~0.base Int)) (or (<= c_~N~0 ~M~0) (<= (+ 2 ~M~0) c_~N~0) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_136))) (let ((.cse2 (select .cse3 c_~B~0.base)) (.cse0 (select .cse3 ~A~0.base))) (= (let ((.cse1 (* ~M~0 4))) (+ (select .cse0 (+ c_~A~0.offset .cse1)) (select .cse2 (+ c_~B~0.offset .cse1)) c_~res2~0)) (+ c_~res1~0 (select .cse2 c_~B~0.offset) (select .cse0 c_~A~0.offset))))))) is different from false [2021-12-07 00:18:45,284 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_135 (Array Int Int)) (v_ArrVal_136 (Array Int Int)) (~A~0.base Int)) (or (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_135) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_136))) (let ((.cse0 (select .cse3 ~A~0.base)) (.cse2 (select .cse3 c_~B~0.base))) (= (let ((.cse1 (* ~M~0 4))) (+ (select .cse0 (+ c_~A~0.offset .cse1)) (select .cse2 (+ c_~B~0.offset .cse1)) c_~res2~0)) (+ c_~res1~0 (select .cse0 c_~A~0.offset) (select .cse2 c_~B~0.offset))))) (<= c_~N~0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:18:45,390 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_135 (Array Int Int)) (v_ArrVal_134 (Array Int Int)) (v_ArrVal_136 (Array Int Int)) (~A~0.base Int)) (or (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_134) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_135) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_136))) (let ((.cse1 (select .cse3 c_~B~0.base)) (.cse0 (select .cse3 ~A~0.base))) (= (+ (select .cse0 c_~A~0.offset) c_~res1~0 (select .cse1 c_~B~0.offset)) (let ((.cse2 (* ~M~0 4))) (+ c_~res2~0 (select .cse1 (+ c_~B~0.offset .cse2)) (select .cse0 (+ c_~A~0.offset .cse2))))))) (<= c_~N~0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:18:45,550 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_135 (Array Int Int)) (v_ArrVal_134 (Array Int Int)) (v_ArrVal_136 (Array Int Int)) (~A~0.base Int)) (or (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_134) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_135) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_136))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_main_#t~ret19#1.base|)) (.cse2 (select .cse3 ~A~0.base))) (= (let ((.cse1 (* ~M~0 4))) (+ c_~res2~0 (select .cse0 (+ |c_ULTIMATE.start_main_#t~ret19#1.offset| .cse1)) (select .cse2 (+ c_~A~0.offset .cse1)))) (+ (select .cse0 |c_ULTIMATE.start_main_#t~ret19#1.offset|) (select .cse2 c_~A~0.offset) c_~res1~0)))) (<= c_~N~0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:18:45,584 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_135 (Array Int Int)) (v_ArrVal_134 (Array Int Int)) (v_ArrVal_136 (Array Int Int)) (~A~0.base Int)) (or (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_134) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_135) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_136))) (let ((.cse2 (select .cse3 ~A~0.base)) (.cse0 (select .cse3 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (= (let ((.cse1 (* ~M~0 4))) (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) c_~res2~0 (select .cse2 (+ c_~A~0.offset .cse1)))) (+ (select .cse2 c_~A~0.offset) (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) c_~res1~0)))) (<= c_~N~0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:18:45,603 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int) (v_ArrVal_135 (Array Int Int)) (v_ArrVal_134 (Array Int Int)) (v_ArrVal_136 (Array Int Int)) (~A~0.base Int)) (or (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_134) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_135) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_136))) (let ((.cse2 (select .cse3 ~A~0.base)) (.cse0 (select .cse3 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (= (let ((.cse1 (* ~M~0 4))) (+ c_~res2~0 (select .cse0 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (select .cse2 (+ c_~A~0.offset .cse1)))) (+ (select .cse2 c_~A~0.offset) c_~res1~0 (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))))) (<= c_~N~0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:18:45,688 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:18:45,688 INFO L388 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 117 treesize of output 82 [2021-12-07 00:18:45,728 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:18:45,728 INFO L388 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 9206 treesize of output 8522 [2021-12-07 00:18:45,808 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:18:45,809 INFO L388 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 8438 treesize of output 6462 [2021-12-07 00:18:45,888 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:18:45,888 INFO L388 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 6390 treesize of output 5438 [2021-12-07 00:18:45,976 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:18:45,977 INFO L388 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 5366 treesize of output 4926 [2021-12-07 00:18:58,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-07 00:18:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-12-07 00:18:58,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581909284] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:18:58,540 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:18:58,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 37, 29] total 82 [2021-12-07 00:18:58,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801788071] [2021-12-07 00:18:58,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:18:58,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-12-07 00:18:58,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:18:58,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-12-07 00:18:58,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=873, Invalid=4839, Unknown=12, NotChecked=918, Total=6642 [2021-12-07 00:18:58,548 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 193 [2021-12-07 00:18:58,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 167 transitions, 401 flow. Second operand has 82 states, 82 states have (on average 66.36585365853658) internal successors, (5442), 82 states have internal predecessors, (5442), 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) [2021-12-07 00:18:58,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:18:58,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 193 [2021-12-07 00:18:58,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:19:02,290 INFO L129 PetriNetUnfolder]: 3523/5959 cut-off events. [2021-12-07 00:19:02,291 INFO L130 PetriNetUnfolder]: For 2319/2319 co-relation queries the response was YES. [2021-12-07 00:19:02,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13382 conditions, 5959 events. 3523/5959 cut-off events. For 2319/2319 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 37472 event pairs, 1018 based on Foata normal form. 1/5276 useless extension candidates. Maximal degree in co-relation 13372. Up to 2403 conditions per place. [2021-12-07 00:19:02,333 INFO L132 encePairwiseOnDemand]: 145/193 looper letters, 247 selfloop transitions, 92 changer transitions 6/401 dead transitions. [2021-12-07 00:19:02,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 401 transitions, 1748 flow [2021-12-07 00:19:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-12-07 00:19:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-12-07 00:19:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 3743 transitions. [2021-12-07 00:19:02,349 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.35914411821147574 [2021-12-07 00:19:02,349 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 3743 transitions. [2021-12-07 00:19:02,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 3743 transitions. [2021-12-07 00:19:02,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:19:02,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 3743 transitions. [2021-12-07 00:19:02,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 69.31481481481481) internal successors, (3743), 54 states have internal predecessors, (3743), 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) [2021-12-07 00:19:02,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 193.0) internal successors, (10615), 55 states have internal predecessors, (10615), 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) [2021-12-07 00:19:02,385 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 193.0) internal successors, (10615), 55 states have internal predecessors, (10615), 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) [2021-12-07 00:19:02,385 INFO L186 Difference]: Start difference. First operand has 177 places, 167 transitions, 401 flow. Second operand 54 states and 3743 transitions. [2021-12-07 00:19:02,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 401 transitions, 1748 flow [2021-12-07 00:19:02,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 401 transitions, 1718 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-07 00:19:02,400 INFO L242 Difference]: Finished difference. Result has 256 places, 248 transitions, 960 flow [2021-12-07 00:19:02,400 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=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=960, PETRI_PLACES=256, PETRI_TRANSITIONS=248} [2021-12-07 00:19:02,401 INFO L334 CegarLoopForPetriNet]: 173 programPoint places, 83 predicate places. [2021-12-07 00:19:02,401 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 248 transitions, 960 flow [2021-12-07 00:19:02,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 66.36585365853658) internal successors, (5442), 82 states have internal predecessors, (5442), 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) [2021-12-07 00:19:02,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:19:02,403 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] [2021-12-07 00:19:02,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:19:02,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:19:02,605 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-07 00:19:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:19:02,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1666466033, now seen corresponding path program 2 times [2021-12-07 00:19:02,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:19:02,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279731117] [2021-12-07 00:19:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:19:02,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:19:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:19:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:19:03,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:19:03,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279731117] [2021-12-07 00:19:03,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279731117] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:19:03,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134683542] [2021-12-07 00:19:03,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:19:03,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:19:03,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:19:03,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:19:03,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc326cf-f622-4a4a-851c-59f618c64b34/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:19:03,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:19:03,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:19:03,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 89 conjunts are in the unsatisfiable core [2021-12-07 00:19:03,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:19:05,048 INFO L388 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 [2021-12-07 00:19:05,491 INFO L388 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 [2021-12-07 00:19:05,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:19:05,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:19:05,744 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 00:19:05,744 INFO L388 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 20 treesize of output 25 [2021-12-07 00:19:05,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:19:05,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:19:05,885 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 00:19:05,885 INFO L388 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 20 treesize of output 25 [2021-12-07 00:19:06,136 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:19:06,136 INFO L388 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 33 treesize of output 93 [2021-12-07 00:19:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:19:06,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:19:06,628 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_181 (Array Int Int)) (~M~0 Int)) (or (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.cse1 (* ~M~0 4))) (+ c_~res2~0 (select (select .cse0 c_~B~0.base) (+ c_~B~0.offset .cse1)) (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) c_~res1~0) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:06,714 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int)) (or (= c_~res1~0 (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~B~0.base) (+ c_~B~0.offset .cse1)) c_~res2~0 (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1))))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:06,765 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int)) (or (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0) (= (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~B~0.base) (+ c_~B~0.offset .cse1)) c_~res2~0 (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) (let ((.cse2 (* |c_thread1Thread1of1ForFork2_~i~0#1| 4))) (+ c_~res1~0 (select (select |c_#memory_int| c_~B~0.base) (+ .cse2 c_~B~0.offset)) (select (select |c_#memory_int| c_~A~0.base) (+ .cse2 c_~A~0.offset))))))) is different from false [2021-12-07 00:19:06,791 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int)) (or (< 0 ~M~0) (= (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.cse1 (* ~M~0 4))) (+ (select (select .cse0 c_~B~0.base) (+ c_~B~0.offset .cse1)) c_~res2~0 (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)))) (+ (select (select |c_#memory_int| c_~B~0.base) c_~B~0.offset) c_~res1~0 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset))) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:06,818 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int) (v_ArrVal_179 (Array Int Int))) (or (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_179))) (= (+ c_~res1~0 (select (select .cse0 c_~B~0.base) c_~B~0.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_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.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) (+ c_~B~0.offset .cse2)))))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:06,955 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int) (v_ArrVal_179 (Array Int Int))) (or (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_179))) (= (+ 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_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.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|) (+ |c_ULTIMATE.start_main_#t~ret19#1.offset| .cse2)))))) (< 0 ~M~0) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:06,986 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int) (v_ArrVal_179 (Array Int Int))) (or (< 0 ~M~0) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_179))) (= (+ c_~res1~0 (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#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_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.cse2 (* ~M~0 4))) (+ (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ .cse2 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) c_~res2~0)))) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:07,004 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_181 (Array Int Int)) (~M~0 Int) (v_ArrVal_179 (Array Int Int))) (or (< 0 ~M~0) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_179))) (= (let ((.cse0 (store (store .cse2 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_180) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_181)) (.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|)))) (<= (+ 2 ~M~0) c_~N~0))) is different from false [2021-12-07 00:19:07,081 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:19:07,082 INFO L388 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 [2021-12-07 00:19:07,176 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:19:07,178 INFO L388 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 307190 treesize of output 258122 [2021-12-07 00:19:07,963 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:19:07,965 INFO L388 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 258038 treesize of output 208902 [2021-12-07 00:19:08,784 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:19:08,785 INFO L388 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 208886 treesize of output 180286 [2021-12-07 00:19:09,573 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:19:09,574 INFO L388 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 180214 treesize of output 155654