./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0 --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 a9f3959f9eef72d5f7423aa1eb092ce144135b5ae33d5bb31037a0c7e99b1293 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:41:22,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:41:22,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:41:22,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:41:22,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:41:22,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:41:22,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:41:22,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:41:22,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:41:22,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:41:22,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:41:22,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:41:22,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:41:22,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:41:22,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:41:22,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:41:22,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:41:22,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:41:22,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:41:22,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:41:22,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:41:22,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:41:22,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:41:22,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:41:22,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:41:22,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:41:22,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:41:22,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:41:22,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:41:22,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:41:22,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:41:22,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:41:22,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:41:22,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:41:22,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:41:22,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:41:22,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:41:22,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:41:22,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:41:22,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:41:22,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:41:22,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:41:22,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:41:22,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:41:22,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:41:22,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:41:22,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:41:22,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:41:22,839 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:41:22,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:41:22,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:41:22,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:41:22,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:41:22,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:41:22,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:41:22,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:41:22,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:41:22,841 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:41:22,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:41:22,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:41:22,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:41:22,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:41:22,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:41:22,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:41:22,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:41:22,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:41:22,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:41:22,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:41:22,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:41:22,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:41:22,844 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:41:22,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:41:22,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:41:22,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:41:22,846 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_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9f3959f9eef72d5f7423aa1eb092ce144135b5ae33d5bb31037a0c7e99b1293 [2021-11-22 15:41:23,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:41:23,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:41:23,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:41:23,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:41:23,169 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:41:23,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/recursive-simple/id_o100.c [2021-11-22 15:41:23,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/data/c133a6583/d6c968ec7b71476d827017b2c74c8379/FLAGdf73e7a10 [2021-11-22 15:41:23,825 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:41:23,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/sv-benchmarks/c/recursive-simple/id_o100.c [2021-11-22 15:41:23,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/data/c133a6583/d6c968ec7b71476d827017b2c74c8379/FLAGdf73e7a10 [2021-11-22 15:41:24,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/data/c133a6583/d6c968ec7b71476d827017b2c74c8379 [2021-11-22 15:41:24,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:41:24,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:41:24,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:41:24,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:41:24,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:41:24,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35549e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24, skipping insertion in model container [2021-11-22 15:41:24,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:41:24,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:41:24,442 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_3d806800-28a4-4dde-bc3a-10a54d928a77/sv-benchmarks/c/recursive-simple/id_o100.c[518,531] [2021-11-22 15:41:24,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:41:24,455 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:41:24,467 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_3d806800-28a4-4dde-bc3a-10a54d928a77/sv-benchmarks/c/recursive-simple/id_o100.c[518,531] [2021-11-22 15:41:24,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:41:24,482 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:41:24,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24 WrapperNode [2021-11-22 15:41:24,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:41:24,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:41:24,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:41:24,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:41:24,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,518 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-22 15:41:24,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:41:24,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:41:24,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:41:24,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:41:24,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:41:24,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:41:24,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:41:24,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:41:24,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (1/1) ... [2021-11-22 15:41:24,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:41:24,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:41:24,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:41:24,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:41:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:41:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:41:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:41:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:41:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-22 15:41:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-22 15:41:24,688 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:41:24,690 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:41:24,768 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:41:24,775 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:41:24,775 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:41:24,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:41:24 BoogieIcfgContainer [2021-11-22 15:41:24,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:41:24,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:41:24,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:41:24,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:41:24,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:41:24" (1/3) ... [2021-11-22 15:41:24,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515d8676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:41:24, skipping insertion in model container [2021-11-22 15:41:24,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:41:24" (2/3) ... [2021-11-22 15:41:24,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515d8676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:41:24, skipping insertion in model container [2021-11-22 15:41:24,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:41:24" (3/3) ... [2021-11-22 15:41:24,787 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o100.c [2021-11-22 15:41:24,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:41:24,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:41:24,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:41:24,859 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 [2021-11-22 15:41:24,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 15:41:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:41:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 15:41:24,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:41:24,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:41:24,887 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:41:24,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:41:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times [2021-11-22 15:41:24,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:41:24,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277866595] [2021-11-22 15:41:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:41:24,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:41:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:25,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:41:25,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:41:25,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277866595] [2021-11-22 15:41:25,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277866595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:41:25,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:41:25,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:41:25,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494019180] [2021-11-22 15:41:25,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:41:25,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:41:25,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:41:25,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:41:25,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:41:25,322 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 15:41:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:41:25,399 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-11-22 15:41:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:41:25,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-22 15:41:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:41:25,414 INFO L225 Difference]: With dead ends: 28 [2021-11-22 15:41:25,415 INFO L226 Difference]: Without dead ends: 15 [2021-11-22 15:41:25,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:41:25,434 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:41:25,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 55 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:41:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-22 15:41:25,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-22 15:41:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-22 15:41:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-22 15:41:25,510 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2021-11-22 15:41:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:41:25,511 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-22 15:41:25,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 15:41:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-22 15:41:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 15:41:25,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:41:25,513 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:41:25,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:41:25,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:41:25,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:41:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 679465686, now seen corresponding path program 1 times [2021-11-22 15:41:25,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:41:25,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329576791] [2021-11-22 15:41:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:41:25,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:41:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:25,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 15:41:25,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:41:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329576791] [2021-11-22 15:41:25,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329576791] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:41:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987819027] [2021-11-22 15:41:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:41:25,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:41:25,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:41:25,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:41:25,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 15:41:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:25,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-22 15:41:25,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:41:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 15:41:26,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:41:26,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 15:41:26,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987819027] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:41:26,444 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:41:26,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-22 15:41:26,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322575771] [2021-11-22 15:41:26,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:41:26,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 15:41:26,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:41:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 15:41:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-22 15:41:26,454 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-22 15:41:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:41:26,533 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-11-22 15:41:26,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 15:41:26,537 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 16 [2021-11-22 15:41:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:41:26,539 INFO L225 Difference]: With dead ends: 27 [2021-11-22 15:41:26,539 INFO L226 Difference]: Without dead ends: 21 [2021-11-22 15:41:26,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-22 15:41:26,545 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:41:26,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:41:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-22 15:41:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-22 15:41:26,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-22 15:41:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-22 15:41:26,568 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2021-11-22 15:41:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:41:26,570 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-22 15:41:26,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-22 15:41:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-22 15:41:26,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 15:41:26,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:41:26,573 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:41:26,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:41:26,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-22 15:41:26,789 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:41:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:41:26,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1769866774, now seen corresponding path program 2 times [2021-11-22 15:41:26,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:41:26,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2429421] [2021-11-22 15:41:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:41:26,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:41:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:26,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:27,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 15:41:27,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:41:27,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2429421] [2021-11-22 15:41:27,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2429421] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:41:27,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013694069] [2021-11-22 15:41:27,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 15:41:27,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:41:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:41:27,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:41:27,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 15:41:27,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 15:41:27,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:41:27,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 15:41:27,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:41:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 15:41:27,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:41:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 15:41:27,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013694069] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:41:27,863 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:41:27,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-11-22 15:41:27,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323870498] [2021-11-22 15:41:27,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:41:27,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-22 15:41:27,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:41:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-22 15:41:27,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2021-11-22 15:41:27,866 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-22 15:41:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:41:28,162 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-11-22 15:41:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 15:41:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) Word has length 28 [2021-11-22 15:41:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:41:28,166 INFO L225 Difference]: With dead ends: 39 [2021-11-22 15:41:28,167 INFO L226 Difference]: Without dead ends: 33 [2021-11-22 15:41:28,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2021-11-22 15:41:28,169 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:41:28,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:41:28,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-22 15:41:28,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-22 15:41:28,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (9), 8 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-22 15:41:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-11-22 15:41:28,183 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 28 [2021-11-22 15:41:28,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:41:28,183 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-11-22 15:41:28,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-22 15:41:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-22 15:41:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 15:41:28,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:41:28,188 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:41:28,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:41:28,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:41:28,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:41:28,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:41:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash -626238314, now seen corresponding path program 3 times [2021-11-22 15:41:28,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:41:28,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293449837] [2021-11-22 15:41:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:41:28,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:41:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:28,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-22 15:41:29,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:41:29,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293449837] [2021-11-22 15:41:29,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293449837] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:41:29,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206027596] [2021-11-22 15:41:29,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 15:41:29,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:41:29,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:41:29,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:41:29,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 15:41:29,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-22 15:41:29,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:41:29,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-22 15:41:29,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:41:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-22 15:41:29,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:41:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-22 15:41:30,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206027596] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:41:30,630 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:41:30,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2021-11-22 15:41:30,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510650072] [2021-11-22 15:41:30,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:41:30,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-22 15:41:30,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:41:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-22 15:41:30,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1144, Unknown=0, NotChecked=0, Total=1332 [2021-11-22 15:41:30,633 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 21 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-22 15:41:34,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:41:34,172 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2021-11-22 15:41:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-22 15:41:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 21 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 52 [2021-11-22 15:41:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:41:34,179 INFO L225 Difference]: With dead ends: 63 [2021-11-22 15:41:34,180 INFO L226 Difference]: Without dead ends: 57 [2021-11-22 15:41:34,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=386, Invalid=1966, Unknown=0, NotChecked=0, Total=2352 [2021-11-22 15:41:34,183 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:41:34,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:41:34,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-22 15:41:34,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-22 15:41:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 39 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (17), 16 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-22 15:41:34,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2021-11-22 15:41:34,196 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 52 [2021-11-22 15:41:34,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:41:34,196 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2021-11-22 15:41:34,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 21 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-22 15:41:34,197 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2021-11-22 15:41:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-22 15:41:34,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:41:34,202 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:41:34,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:41:34,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:41:34,409 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:41:34,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:41:34,410 INFO L85 PathProgramCache]: Analyzing trace with hash 415287702, now seen corresponding path program 4 times [2021-11-22 15:41:34,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:41:34,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877367857] [2021-11-22 15:41:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:41:34,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:41:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:41:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:41:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-22 15:41:35,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:41:35,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877367857] [2021-11-22 15:41:35,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877367857] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:41:35,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964217314] [2021-11-22 15:41:35,799 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 15:41:35,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:41:35,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:41:35,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:41:35,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 15:41:35,870 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 15:41:35,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:41:35,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-22 15:41:35,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:41:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-22 15:41:36,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:41:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-22 15:41:40,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964217314] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:41:40,023 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:41:40,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 69 [2021-11-22 15:41:40,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710599526] [2021-11-22 15:41:40,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:41:40,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-22 15:41:40,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:41:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-22 15:41:40,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=4072, Unknown=0, NotChecked=0, Total=4692 [2021-11-22 15:41:40,029 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 69 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 37 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-22 15:42:03,455 WARN L227 SmtUtils]: Spent 14.33s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:42:24,257 WARN L227 SmtUtils]: Spent 13.66s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:42:43,914 WARN L227 SmtUtils]: Spent 13.78s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:43:03,227 WARN L227 SmtUtils]: Spent 12.64s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:43:15,587 WARN L227 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:43:29,894 WARN L227 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:43:40,978 WARN L227 SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:43:57,327 WARN L227 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:44:05,025 WARN L227 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:44:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:44:44,916 INFO L93 Difference]: Finished difference Result 111 states and 127 transitions. [2021-11-22 15:44:44,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-22 15:44:44,917 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 37 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) Word has length 100 [2021-11-22 15:44:44,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:44:44,920 INFO L225 Difference]: With dead ends: 111 [2021-11-22 15:44:44,920 INFO L226 Difference]: Without dead ends: 105 [2021-11-22 15:44:44,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 186.1s TimeCoverageRelationStatistics Valid=1530, Invalid=7780, Unknown=2, NotChecked=0, Total=9312 [2021-11-22 15:44:44,927 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:44:44,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1274 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-22 15:44:44,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-22 15:44:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-22 15:44:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 71 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (33), 32 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-22 15:44:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions. [2021-11-22 15:44:44,947 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 100 [2021-11-22 15:44:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:44:44,948 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 106 transitions. [2021-11-22 15:44:44,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 37 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2021-11-22 15:44:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions. [2021-11-22 15:44:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-22 15:44:44,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:44:44,955 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:44:44,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:44:45,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:44:45,165 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:44:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:44:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1665704854, now seen corresponding path program 5 times [2021-11-22 15:44:45,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:44:45,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152637416] [2021-11-22 15:44:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:44:45,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:44:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:47,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:47,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:48,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:49,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:50,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:44:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:44:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2021-11-22 15:44:50,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:44:50,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152637416] [2021-11-22 15:44:50,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152637416] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:44:50,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335588659] [2021-11-22 15:44:50,668 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 15:44:50,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:44:50,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:44:50,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:44:50,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d806800-28a4-4dde-bc3a-10a54d928a77/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 15:45:13,576 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2021-11-22 15:45:13,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:45:13,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 132 conjunts are in the unsatisfiable core [2021-11-22 15:45:13,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:45:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2021-11-22 15:45:14,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:45:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2021-11-22 15:45:28,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335588659] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:45:28,371 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:45:28,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 133 [2021-11-22 15:45:28,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733621564] [2021-11-22 15:45:28,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:45:28,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2021-11-22 15:45:28,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:45:28,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2021-11-22 15:45:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2252, Invalid=15304, Unknown=0, NotChecked=0, Total=17556 [2021-11-22 15:45:28,382 INFO L87 Difference]: Start difference. First operand 105 states and 106 transitions. Second operand has 133 states, 133 states have (on average 1.0451127819548873) internal successors, (139), 69 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 64 states have return successors, (64), 64 states have call predecessors, (64), 1 states have call successors, (64) [2021-11-22 15:45:32,069 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod (+ |c_id_#t~ret4| 9) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 27) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 11) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 16) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 29) 4294967296) 100)) (not (= (mod (+ 19 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 22) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 2) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 26) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 7) 4294967296) 100)) (not (= (mod (+ 23 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 31) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 15) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 13) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 25) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 12) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 24) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 30) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 14) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 6) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 20) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 17) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 3) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 5) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 10) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 1) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 8) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 21) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 18) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 4) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 28) 4294967296) 100))) is different from false [2021-11-22 15:45:34,115 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 100 (mod (+ |c_id_#res| 24) 4294967296))) (not (= 100 (mod (+ 10 |c_id_#res|) 4294967296))) (not (= (mod (+ 3 |c_id_#res|) 4294967296) 100)) (not (= (mod |c_id_#res| 4294967296) 100)) (not (= 100 (mod (+ |c_id_#res| 27) 4294967296))) (not (= (mod (+ 13 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 21 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 26 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 19 |c_id_#res|) 4294967296) 100)) (not (= 100 (mod (+ 4 |c_id_#res|) 4294967296))) (not (= (mod (+ 9 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 15 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 18 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 2 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ |c_id_#res| 1) 4294967296) 100)) (not (= (mod (+ 29 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 17 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 28 |c_id_#res|) 4294967296) 100)) (not (= 100 (mod (+ 20 |c_id_#res|) 4294967296))) (not (= 100 (mod (+ 30 |c_id_#res|) 4294967296))) (not (= (mod (+ 23 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 8 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 25 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 6 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 7 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 22 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 5 |c_id_#res|) 4294967296) 100)) (not (= 100 (mod (+ 14 |c_id_#res|) 4294967296))) (not (= (mod (+ 16 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 11 |c_id_#res|) 4294967296) 100)) (not (= (mod (+ 12 |c_id_#res|) 4294967296) 100))) is different from false [2021-11-22 15:45:36,128 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod (+ |c_id_#t~ret4| 9) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 27) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 11) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 16) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 29) 4294967296) 100)) (not (= (mod (+ 19 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 22) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 2) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 26) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 7) 4294967296) 100)) (not (= (mod (+ 23 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 15) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 13) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 25) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 12) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 24) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 30) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 14) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 6) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 20) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 17) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 3) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 5) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 10) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 1) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 8) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 21) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 18) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 4) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 28) 4294967296) 100))) is different from false [2021-11-22 15:48:46,346 WARN L227 SmtUtils]: Spent 1.56m on a formula simplification that was a NOOP. DAG size: 152 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:48:48,868 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod (+ |c_id_#t~ret4| 9) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 27) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 11) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 16) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 29) 4294967296) 100)) (not (= (mod (+ 19 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 22) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 2) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 26) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 7) 4294967296) 100)) (not (= (mod (+ 23 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 15) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 13) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 25) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 12) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 24) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 14) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 6) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 20) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 17) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 3) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 5) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 10) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 1) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 8) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 21) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 18) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 4) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 28) 4294967296) 100))) is different from false [2021-11-22 15:51:59,734 WARN L227 SmtUtils]: Spent 1.50m on a formula simplification that was a NOOP. DAG size: 147 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:52:01,840 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod (+ |c_id_#t~ret4| 9) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 27) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 11) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 16) 4294967296) 100)) (not (= (mod (+ 19 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 22) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 2) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 26) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 7) 4294967296) 100)) (not (= (mod (+ 23 |c_id_#t~ret4|) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 15) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 13) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 25) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 12) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 24) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 14) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 6) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 20) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 17) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 3) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 5) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 10) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 1) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 8) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 21) 4294967296) 100)) (not (= 100 (mod (+ |c_id_#t~ret4| 18) 4294967296))) (not (= (mod (+ |c_id_#t~ret4| 4) 4294967296) 100)) (not (= (mod (+ |c_id_#t~ret4| 28) 4294967296) 100))) is different from false [2021-11-22 15:54:54,346 WARN L227 SmtUtils]: Spent 1.41m on a formula simplification that was a NOOP. DAG size: 142 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)