./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/nested_1-2.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_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/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_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/nested_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/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_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/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 8828f6ff39cd2bcfba4fe3d04f0119d60137bcad91eabef2e2b840cbd0802b98 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:38:36,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:38:36,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:38:36,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:38:36,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:38:36,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:38:36,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:38:36,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:38:36,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:38:36,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:38:36,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:38:36,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:38:36,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:38:36,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:38:36,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:38:36,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:38:36,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:38:36,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:38:36,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:38:36,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:38:36,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:38:36,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:38:36,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:38:36,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:38:36,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:38:36,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:38:36,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:38:36,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:38:36,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:38:36,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:38:36,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:38:36,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:38:36,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:38:36,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:38:36,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:38:36,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:38:36,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:38:36,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:38:36,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:38:36,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:38:36,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:38:36,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:38:36,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:38:36,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:38:36,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:38:36,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:38:36,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:38:36,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:38:36,769 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:38:36,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:38:36,769 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:38:36,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:38:36,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:38:36,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:38:36,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:38:36,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:38:36,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:38:36,771 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:38:36,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:38:36,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:38:36,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:38:36,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:38:36,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:38:36,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:38:36,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:38:36,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:38:36,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:38:36,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:38:36,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:38:36,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:38:36,773 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:38:36,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:38:36,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:38:36,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:38:36,774 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_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8828f6ff39cd2bcfba4fe3d04f0119d60137bcad91eabef2e2b840cbd0802b98 [2021-11-22 14:38:37,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:38:37,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:38:37,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:38:37,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:38:37,085 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:38:37,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/loop-acceleration/nested_1-2.c [2021-11-22 14:38:37,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/data/9ebfb5846/9136a6f2f366465b9b5c79cd7ef9aa55/FLAG9ea52ef4c [2021-11-22 14:38:37,641 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:38:37,642 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/sv-benchmarks/c/loop-acceleration/nested_1-2.c [2021-11-22 14:38:37,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/data/9ebfb5846/9136a6f2f366465b9b5c79cd7ef9aa55/FLAG9ea52ef4c [2021-11-22 14:38:38,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/data/9ebfb5846/9136a6f2f366465b9b5c79cd7ef9aa55 [2021-11-22 14:38:38,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:38:38,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:38:38,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:38,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:38:38,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:38:38,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4027b273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38, skipping insertion in model container [2021-11-22 14:38:38,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:38:38,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:38:38,246 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_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/sv-benchmarks/c/loop-acceleration/nested_1-2.c[322,335] [2021-11-22 14:38:38,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:38,269 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:38:38,282 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_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/sv-benchmarks/c/loop-acceleration/nested_1-2.c[322,335] [2021-11-22 14:38:38,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:38,300 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:38:38,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38 WrapperNode [2021-11-22 14:38:38,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:38,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:38,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:38:38,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:38:38,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,338 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-22 14:38:38,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:38,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:38:38,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:38:38,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:38:38,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:38:38,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:38:38,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:38:38,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:38:38,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (1/1) ... [2021-11-22 14:38:38,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:38:38,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:38,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:38,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:38:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:38:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:38:38,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:38:38,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:38:38,541 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:38:38,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:38:38,649 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:38:38,655 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:38:38,655 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 14:38:38,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:38 BoogieIcfgContainer [2021-11-22 14:38:38,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:38:38,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:38:38,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:38:38,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:38:38,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:38:38" (1/3) ... [2021-11-22 14:38:38,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5030b429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:38, skipping insertion in model container [2021-11-22 14:38:38,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:38" (2/3) ... [2021-11-22 14:38:38,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5030b429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:38, skipping insertion in model container [2021-11-22 14:38:38,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:38" (3/3) ... [2021-11-22 14:38:38,668 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_1-2.c [2021-11-22 14:38:38,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:38:38,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:38:38,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:38:38,742 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 14:38:38,742 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:38:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 14:38:38,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:38,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 14:38:38,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:38,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:38,782 INFO L85 PathProgramCache]: Analyzing trace with hash 889646744, now seen corresponding path program 1 times [2021-11-22 14:38:38,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:38,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399050609] [2021-11-22 14:38:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:38,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:39,123 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 14:38:39,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:39,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399050609] [2021-11-22 14:38:39,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399050609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:39,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:39,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:38:39,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368637108] [2021-11-22 14:38:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:39,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:38:39,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:38:39,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:38:39,221 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:39,263 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2021-11-22 14:38:39,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:38:39,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 14:38:39,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:39,276 INFO L225 Difference]: With dead ends: 27 [2021-11-22 14:38:39,277 INFO L226 Difference]: Without dead ends: 12 [2021-11-22 14:38:39,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:38:39,292 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:39,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:38:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-22 14:38:39,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-11-22 14:38:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-22 14:38:39,339 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-11-22 14:38:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:39,339 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-22 14:38:39,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-22 14:38:39,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 14:38:39,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:39,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:39,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:38:39,346 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:39,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:39,350 INFO L85 PathProgramCache]: Analyzing trace with hash 704531011, now seen corresponding path program 1 times [2021-11-22 14:38:39,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:39,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460196724] [2021-11-22 14:38:39,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:39,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:39,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:39,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460196724] [2021-11-22 14:38:39,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460196724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:38:39,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:38:39,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:38:39,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713374208] [2021-11-22 14:38:39,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:38:39,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:38:39,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:39,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:38:39,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:38:39,452 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:39,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:39,471 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-11-22 14:38:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:38:39,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 14:38:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:39,473 INFO L225 Difference]: With dead ends: 18 [2021-11-22 14:38:39,473 INFO L226 Difference]: Without dead ends: 11 [2021-11-22 14:38:39,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:38:39,481 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:39,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:38:39,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-22 14:38:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-22 14:38:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-22 14:38:39,492 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2021-11-22 14:38:39,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:39,494 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-22 14:38:39,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:39,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-22 14:38:39,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-22 14:38:39,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:39,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:39,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:38:39,498 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:39,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1982141191, now seen corresponding path program 1 times [2021-11-22 14:38:39,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:39,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364502060] [2021-11-22 14:38:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:39,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:39,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:39,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364502060] [2021-11-22 14:38:39,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364502060] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:39,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676595694] [2021-11-22 14:38:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:39,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:39,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:39,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:39,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:38:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:39,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:38:39,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 14:38:39,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 14:38:39,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676595694] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:39,904 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:39,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-22 14:38:39,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293987848] [2021-11-22 14:38:39,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:39,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 14:38:39,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:39,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 14:38:39,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:38:39,907 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:40,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:40,131 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2021-11-22 14:38:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 14:38:40,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-22 14:38:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:40,133 INFO L225 Difference]: With dead ends: 35 [2021-11-22 14:38:40,133 INFO L226 Difference]: Without dead ends: 27 [2021-11-22 14:38:40,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-11-22 14:38:40,135 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:40,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:38:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-22 14:38:40,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-22 14:38:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-22 14:38:40,146 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 10 [2021-11-22 14:38:40,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:40,146 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-22 14:38:40,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-11-22 14:38:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:38:40,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:40,148 INFO L514 BasicCegarLoop]: trace histogram [8, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:40,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:40,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:40,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:40,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:40,371 INFO L85 PathProgramCache]: Analyzing trace with hash -738026408, now seen corresponding path program 2 times [2021-11-22 14:38:40,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:40,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119625871] [2021-11-22 14:38:40,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:40,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-22 14:38:40,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:40,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119625871] [2021-11-22 14:38:40,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119625871] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:40,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817321062] [2021-11-22 14:38:40,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:38:40,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:40,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:40,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:40,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 14:38:40,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 14:38:40,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:40,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 14:38:40,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 14:38:40,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 14:38:40,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817321062] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:40,977 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:40,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 5] total 13 [2021-11-22 14:38:40,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397666186] [2021-11-22 14:38:40,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:40,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 14:38:40,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:40,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 14:38:40,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:38:40,980 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:41,547 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2021-11-22 14:38:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 14:38:41,547 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-22 14:38:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:41,548 INFO L225 Difference]: With dead ends: 71 [2021-11-22 14:38:41,549 INFO L226 Difference]: Without dead ends: 48 [2021-11-22 14:38:41,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2021-11-22 14:38:41,552 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:41,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 61 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:38:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-22 14:38:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2021-11-22 14:38:41,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2021-11-22 14:38:41,563 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 26 [2021-11-22 14:38:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:41,563 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-11-22 14:38:41,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2021-11-22 14:38:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-22 14:38:41,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:41,570 INFO L514 BasicCegarLoop]: trace histogram [15, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:41,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-22 14:38:41,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:41,777 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1025867325, now seen corresponding path program 3 times [2021-11-22 14:38:41,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723104458] [2021-11-22 14:38:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:41,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:41,888 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-22 14:38:41,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723104458] [2021-11-22 14:38:41,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723104458] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363022312] [2021-11-22 14:38:41,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 14:38:41,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:41,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:41,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:41,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 14:38:41,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-22 14:38:41,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:41,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 14:38:41,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-22 14:38:42,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-22 14:38:42,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363022312] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:42,247 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:42,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-22 14:38:42,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953343201] [2021-11-22 14:38:42,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:42,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 14:38:42,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 14:38:42,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-11-22 14:38:42,252 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:42,420 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2021-11-22 14:38:42,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 14:38:42,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-22 14:38:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:42,422 INFO L225 Difference]: With dead ends: 92 [2021-11-22 14:38:42,422 INFO L226 Difference]: Without dead ends: 62 [2021-11-22 14:38:42,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2021-11-22 14:38:42,424 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:42,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:38:42,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-22 14:38:42,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-22 14:38:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.098360655737705) internal successors, (67), 61 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:42,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2021-11-22 14:38:42,448 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 36 [2021-11-22 14:38:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:42,449 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2021-11-22 14:38:42,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2021-11-22 14:38:42,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 14:38:42,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:42,452 INFO L514 BasicCegarLoop]: trace histogram [40, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:42,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:42,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:42,678 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:42,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:42,679 INFO L85 PathProgramCache]: Analyzing trace with hash 251588099, now seen corresponding path program 4 times [2021-11-22 14:38:42,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:42,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977206612] [2021-11-22 14:38:42,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:42,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 329 proven. 36 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2021-11-22 14:38:42,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:42,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977206612] [2021-11-22 14:38:42,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977206612] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:42,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018477545] [2021-11-22 14:38:42,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 14:38:42,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:42,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:42,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:42,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 14:38:43,061 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 14:38:43,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:43,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 14:38:43,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 329 proven. 36 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2021-11-22 14:38:43,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 329 proven. 36 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2021-11-22 14:38:43,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018477545] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:43,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:43,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-11-22 14:38:43,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382994376] [2021-11-22 14:38:43,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:43,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-22 14:38:43,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-22 14:38:43,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2021-11-22 14:38:43,569 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:43,686 INFO L93 Difference]: Finished difference Result 122 states and 141 transitions. [2021-11-22 14:38:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:38:43,689 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-22 14:38:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:43,694 INFO L225 Difference]: With dead ends: 122 [2021-11-22 14:38:43,694 INFO L226 Difference]: Without dead ends: 72 [2021-11-22 14:38:43,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2021-11-22 14:38:43,699 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:43,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:38:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-22 14:38:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-22 14:38:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0845070422535212) internal successors, (77), 71 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2021-11-22 14:38:43,734 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 61 [2021-11-22 14:38:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:43,734 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2021-11-22 14:38:43,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2021-11-22 14:38:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 14:38:43,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:43,738 INFO L514 BasicCegarLoop]: trace histogram [50, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:43,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:43,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-22 14:38:43,938 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:43,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1313015549, now seen corresponding path program 5 times [2021-11-22 14:38:43,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:43,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585435677] [2021-11-22 14:38:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:43,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-22 14:38:44,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:44,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585435677] [2021-11-22 14:38:44,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585435677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:44,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113913182] [2021-11-22 14:38:44,208 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 14:38:44,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:44,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:44,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:44,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 14:38:45,267 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2021-11-22 14:38:45,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:45,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 14:38:45,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-22 14:38:45,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:45,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-22 14:38:45,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113913182] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:45,947 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:45,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-11-22 14:38:45,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994990528] [2021-11-22 14:38:45,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:45,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 14:38:45,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:45,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 14:38:45,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:38:45,950 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:38:46,783 INFO L93 Difference]: Finished difference Result 180 states and 196 transitions. [2021-11-22 14:38:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 14:38:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-22 14:38:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:38:46,786 INFO L225 Difference]: With dead ends: 180 [2021-11-22 14:38:46,786 INFO L226 Difference]: Without dead ends: 176 [2021-11-22 14:38:46,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=150, Invalid=230, Unknown=0, NotChecked=0, Total=380 [2021-11-22 14:38:46,787 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 39 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:38:46,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 117 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:38:46,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-22 14:38:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-11-22 14:38:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.08) internal successors, (189), 175 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2021-11-22 14:38:46,827 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 71 [2021-11-22 14:38:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:38:46,828 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2021-11-22 14:38:46,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2021-11-22 14:38:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-22 14:38:46,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:38:46,834 INFO L514 BasicCegarLoop]: trace histogram [130, 13, 13, 13, 1, 1, 1, 1, 1, 1] [2021-11-22 14:38:46,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-22 14:38:47,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:47,039 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:38:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash 869335427, now seen corresponding path program 6 times [2021-11-22 14:38:47,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:47,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857510183] [2021-11-22 14:38:47,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:47,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 10322 backedges. 0 proven. 9607 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-22 14:38:47,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:38:47,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857510183] [2021-11-22 14:38:47,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857510183] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:38:47,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108170476] [2021-11-22 14:38:47,626 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-22 14:38:47,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:38:47,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:47,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:38:47,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 14:38:55,534 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-22 14:38:55,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:38:55,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-22 14:38:55,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 10322 backedges. 0 proven. 9607 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-22 14:38:56,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:38:58,657 INFO L134 CoverageAnalysis]: Checked inductivity of 10322 backedges. 0 proven. 9607 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-22 14:38:58,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108170476] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:38:58,658 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:38:58,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 17] total 32 [2021-11-22 14:38:58,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339654812] [2021-11-22 14:38:58,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:38:58,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-22 14:38:58,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:38:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-22 14:38:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=691, Unknown=0, NotChecked=0, Total=992 [2021-11-22 14:38:58,663 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand has 32 states, 32 states have (on average 3.5625) internal successors, (114), 32 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:39:30,327 WARN L227 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 77 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:39:30,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:39:30,348 INFO L93 Difference]: Finished difference Result 388 states and 424 transitions. [2021-11-22 14:39:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 14:39:30,349 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 32 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-22 14:39:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:39:30,352 INFO L225 Difference]: With dead ends: 388 [2021-11-22 14:39:30,353 INFO L226 Difference]: Without dead ends: 384 [2021-11-22 14:39:30,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 334 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=743, Invalid=1326, Unknown=1, NotChecked=0, Total=2070 [2021-11-22 14:39:30,355 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 153 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 14:39:30,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 447 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 14:39:30,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-22 14:39:30,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2021-11-22 14:39:30,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 383 states have (on average 1.0783289817232375) internal successors, (413), 383 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:39:30,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 413 transitions. [2021-11-22 14:39:30,402 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 413 transitions. Word has length 175 [2021-11-22 14:39:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:39:30,403 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 413 transitions. [2021-11-22 14:39:30,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 32 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:39:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 413 transitions. [2021-11-22 14:39:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-22 14:39:30,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:39:30,412 INFO L514 BasicCegarLoop]: trace histogram [290, 29, 29, 29, 1, 1, 1, 1, 1, 1] [2021-11-22 14:39:30,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-22 14:39:30,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:39:30,625 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:39:30,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:39:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1690987901, now seen corresponding path program 7 times [2021-11-22 14:39:30,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:39:30,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166701214] [2021-11-22 14:39:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:39:30,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:39:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:39:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 51562 backedges. 0 proven. 49967 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-22 14:39:32,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:39:32,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166701214] [2021-11-22 14:39:32,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166701214] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:39:32,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881900674] [2021-11-22 14:39:32,098 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-22 14:39:32,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:39:32,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:39:32,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:39:32,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 14:39:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:39:32,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-22 14:39:32,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:39:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 51562 backedges. 0 proven. 49967 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-22 14:39:34,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:39:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 51562 backedges. 0 proven. 49967 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2021-11-22 14:39:37,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881900674] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:39:37,180 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:39:37,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2021-11-22 14:39:37,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26233830] [2021-11-22 14:39:37,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:39:37,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-22 14:39:37,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:39:37,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-22 14:39:37,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1083, Invalid=2823, Unknown=0, NotChecked=0, Total=3906 [2021-11-22 14:39:37,187 INFO L87 Difference]: Start difference. First operand 384 states and 413 transitions. Second operand has 63 states, 63 states have (on average 3.8412698412698414) internal successors, (242), 63 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:00,098 WARN L227 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 122 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:40:19,915 WARN L227 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 118 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:41:07,596 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 110 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:41:36,362 WARN L227 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 106 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:46:48,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:46:48,141 INFO L93 Difference]: Finished difference Result 804 states and 880 transitions. [2021-11-22 14:46:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 14:46:48,141 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 3.8412698412698414) internal successors, (242), 63 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 383 [2021-11-22 14:46:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:46:48,147 INFO L225 Difference]: With dead ends: 804 [2021-11-22 14:46:48,147 INFO L226 Difference]: Without dead ends: 800 [2021-11-22 14:46:48,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 826 GetRequests, 735 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 431.9s TimeCoverageRelationStatistics Valid=2891, Invalid=5461, Unknown=20, NotChecked=0, Total=8372 [2021-11-22 14:46:48,151 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 273 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:46:48,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1974 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-22 14:46:48,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-11-22 14:46:48,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2021-11-22 14:46:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.0775969962453067) internal successors, (861), 799 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:46:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 861 transitions. [2021-11-22 14:46:48,227 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 861 transitions. Word has length 383 [2021-11-22 14:46:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:46:48,228 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 861 transitions. [2021-11-22 14:46:48,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.8412698412698414) internal successors, (242), 63 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:46:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 861 transitions. [2021-11-22 14:46:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2021-11-22 14:46:48,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:46:48,253 INFO L514 BasicCegarLoop]: trace histogram [610, 61, 61, 61, 1, 1, 1, 1, 1, 1] [2021-11-22 14:46:48,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 14:46:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-22 14:46:48,469 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:46:48,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:46:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1425060995, now seen corresponding path program 8 times [2021-11-22 14:46:48,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:46:48,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248025410] [2021-11-22 14:46:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:46:48,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:46:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:46:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 228506 backedges. 0 proven. 225151 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2021-11-22 14:46:52,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:46:52,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248025410] [2021-11-22 14:46:52,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248025410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:46:52,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063814404] [2021-11-22 14:46:52,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:46:52,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:46:52,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:46:52,573 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:46:52,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8d18c6-bf61-453d-b17e-e83b9cbad2f9/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 14:46:53,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 14:46:53,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:46:53,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 2233 conjuncts, 125 conjunts are in the unsatisfiable core [2021-11-22 14:46:54,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:46:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 228506 backedges. 0 proven. 225151 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2021-11-22 14:46:57,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:47:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 228506 backedges. 0 proven. 225151 refuted. 0 times theorem prover too weak. 3355 trivial. 0 not checked. [2021-11-22 14:47:05,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063814404] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:47:05,110 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:47:05,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2021-11-22 14:47:05,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329792457] [2021-11-22 14:47:05,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:47:05,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2021-11-22 14:47:05,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:47:05,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2021-11-22 14:47:05,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4219, Invalid=11783, Unknown=0, NotChecked=0, Total=16002 [2021-11-22 14:47:05,123 INFO L87 Difference]: Start difference. First operand 800 states and 861 transitions. Second operand has 127 states, 127 states have (on average 3.921259842519685) internal successors, (498), 127 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:48:56,523 WARN L227 SmtUtils]: Spent 25.53s on a formula simplification. DAG size of input: 250 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:48:58,547 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:49:00,561 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:49:02,591 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 59 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:50:46,196 WARN L227 SmtUtils]: Spent 19.23s on a formula simplification. DAG size of input: 240 DAG size of output: 12 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:50:48,227 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:50:50,239 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 58) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:50:52,257 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:50:54,268 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:52:36,399 WARN L227 SmtUtils]: Spent 16.28s on a formula simplification. DAG size of input: 230 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:52:38,436 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:52:40,447 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ 3 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455)) is different from false