./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/gcd-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y --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 abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:31:15,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:31:15,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:31:15,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:31:15,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:31:15,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:31:15,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:31:15,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:31:15,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:31:15,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:31:15,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:31:15,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:31:15,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:31:15,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:31:15,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:31:15,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:31:15,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:31:15,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:31:15,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:31:15,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:31:15,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:31:15,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:31:15,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:31:15,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:31:15,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:31:15,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:31:15,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:31:15,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:31:15,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:31:15,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:31:15,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:31:15,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:31:15,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:31:15,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:31:15,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:31:15,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:31:15,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:31:15,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:31:15,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:31:15,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:31:15,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:31:15,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:31:15,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:31:15,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:31:15,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:31:15,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:31:15,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:31:15,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:31:15,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:31:15,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:31:15,709 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:31:15,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:31:15,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:31:15,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:31:15,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:31:15,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:31:15,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:31:15,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:31:15,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:31:15,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:31:15,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:31:15,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:31:15,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:31:15,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:31:15,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:31:15,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:31:15,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:31:15,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:31:15,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:31:15,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:31:15,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:31:15,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:31:15,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:31:15,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:31:15,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:31:15,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:31:15,714 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_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 [2021-11-13 17:31:15,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:31:15,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:31:16,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:31:16,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:31:16,003 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:31:16,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2021-11-13 17:31:16,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/data/34e46f3f9/a98c3f5bd0b24bea8d8c4fc117ee1d66/FLAG0f7a11e4d [2021-11-13 17:31:16,657 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:31:16,658 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/sv-benchmarks/c/pthread-atomic/gcd-2.i [2021-11-13 17:31:16,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/data/34e46f3f9/a98c3f5bd0b24bea8d8c4fc117ee1d66/FLAG0f7a11e4d [2021-11-13 17:31:16,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/data/34e46f3f9/a98c3f5bd0b24bea8d8c4fc117ee1d66 [2021-11-13 17:31:16,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:31:16,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:31:16,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:16,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:31:16,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:31:16,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:16" (1/1) ... [2021-11-13 17:31:16,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e97ab67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:16, skipping insertion in model container [2021-11-13 17:31:16,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:16" (1/1) ... [2021-11-13 17:31:17,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:31:17,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:31:17,230 WARN L228 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_7df701c5-a091-4dfe-a896-b6b09cbb9497/sv-benchmarks/c/pthread-atomic/gcd-2.i[938,951] [2021-11-13 17:31:17,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:17,405 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:31:17,422 WARN L228 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_7df701c5-a091-4dfe-a896-b6b09cbb9497/sv-benchmarks/c/pthread-atomic/gcd-2.i[938,951] [2021-11-13 17:31:17,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:17,526 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:31:17,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17 WrapperNode [2021-11-13 17:31:17,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:17,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:17,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:31:17,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:31:17,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:17,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:31:17,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:31:17,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:31:17,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:31:17,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:31:17,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:31:17,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:31:17,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (1/1) ... [2021-11-13 17:31:17,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:31:17,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:17,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:17,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:31:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:31:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:31:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:31:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:31:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2021-11-13 17:31:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2021-11-13 17:31:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2021-11-13 17:31:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2021-11-13 17:31:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:31:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:31:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:31:17,737 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 17:31:18,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:31:18,256 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 17:31:18,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:18 BoogieIcfgContainer [2021-11-13 17:31:18,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:31:18,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:31:18,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:31:18,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:31:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:31:16" (1/3) ... [2021-11-13 17:31:18,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c09fd13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:31:18, skipping insertion in model container [2021-11-13 17:31:18,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:17" (2/3) ... [2021-11-13 17:31:18,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c09fd13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:31:18, skipping insertion in model container [2021-11-13 17:31:18,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:18" (3/3) ... [2021-11-13 17:31:18,273 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2021-11-13 17:31:18,279 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 17:31:18,279 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:31:18,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 17:31:18,280 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 17:31:18,312 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,312 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,312 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,313 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,313 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,313 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,314 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,314 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,315 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,315 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,315 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,316 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,316 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,317 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,317 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,317 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,317 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,318 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,318 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,318 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,318 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,319 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,319 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,319 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,323 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,323 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,323 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,324 WARN L322 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,325 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,325 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,326 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,326 WARN L322 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:31:18,329 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-13 17:31:18,384 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:31:18,392 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 [2021-11-13 17:31:18,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-13 17:31:18,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 153 transitions, 322 flow [2021-11-13 17:31:18,484 INFO L129 PetriNetUnfolder]: 12/151 cut-off events. [2021-11-13 17:31:18,485 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-13 17:31:18,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 151 events. 12/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2021-11-13 17:31:18,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 153 transitions, 322 flow [2021-11-13 17:31:18,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 141 transitions, 294 flow [2021-11-13 17:31:18,555 INFO L129 PetriNetUnfolder]: 10/124 cut-off events. [2021-11-13 17:31:18,555 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-13 17:31:18,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:31:18,556 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:18,556 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 17:31:18,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:18,570 INFO L85 PathProgramCache]: Analyzing trace with hash -690552940, now seen corresponding path program 1 times [2021-11-13 17:31:18,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:18,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056616492] [2021-11-13 17:31:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:18,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:18,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:18,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056616492] [2021-11-13 17:31:18,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056616492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:18,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:18,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:31:18,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441045205] [2021-11-13 17:31:18,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:18,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:31:18,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:18,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:31:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:31:19,002 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 153 [2021-11-13 17:31:19,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 294 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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) [2021-11-13 17:31:19,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:31:19,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 153 [2021-11-13 17:31:19,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:31:19,063 INFO L129 PetriNetUnfolder]: 9/152 cut-off events. [2021-11-13 17:31:19,063 INFO L130 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2021-11-13 17:31:19,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 152 events. 9/152 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 16/156 useless extension candidates. Maximal degree in co-relation 80. Up to 17 conditions per place. [2021-11-13 17:31:19,066 INFO L132 encePairwiseOnDemand]: 144/153 looper letters, 6 selfloop transitions, 0 changer transitions 5/130 dead transitions. [2021-11-13 17:31:19,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 130 transitions, 284 flow [2021-11-13 17:31:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:31:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-13 17:31:19,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 283 transitions. [2021-11-13 17:31:19,083 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9248366013071896 [2021-11-13 17:31:19,083 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 283 transitions. [2021-11-13 17:31:19,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 283 transitions. [2021-11-13 17:31:19,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:31:19,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 283 transitions. [2021-11-13 17:31:19,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 141.5) internal successors, (283), 2 states have internal predecessors, (283), 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) [2021-11-13 17:31:19,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2021-11-13 17:31:19,100 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2021-11-13 17:31:19,102 INFO L186 Difference]: Start difference. First operand has 137 places, 141 transitions, 294 flow. Second operand 2 states and 283 transitions. [2021-11-13 17:31:19,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 130 transitions, 284 flow [2021-11-13 17:31:19,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 130 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-13 17:31:19,112 INFO L242 Difference]: Finished difference. Result has 132 places, 125 transitions, 254 flow [2021-11-13 17:31:19,114 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=254, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2021-11-13 17:31:19,120 INFO L334 CegarLoopForPetriNet]: 137 programPoint places, -5 predicate places. [2021-11-13 17:31:19,125 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 254 flow [2021-11-13 17:31:19,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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) [2021-11-13 17:31:19,126 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:31:19,126 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:19,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:31:19,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 17:31:19,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash -947970219, now seen corresponding path program 1 times [2021-11-13 17:31:19,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:19,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904605508] [2021-11-13 17:31:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:19,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:19,196 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:19,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24165636] [2021-11-13 17:31:19,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:19,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:19,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:19,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:19,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:31:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:19,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 17:31:19,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:20,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:20,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:20,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904605508] [2021-11-13 17:31:20,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:31:20,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24165636] [2021-11-13 17:31:20,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24165636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:20,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:20,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-13 17:31:20,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126895683] [2021-11-13 17:31:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:20,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 17:31:20,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 17:31:20,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:31:20,403 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 153 [2021-11-13 17:31:20,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 254 flow. Second operand has 15 states, 15 states have (on average 77.93333333333334) internal successors, (1169), 15 states have internal predecessors, (1169), 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) [2021-11-13 17:31:20,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:31:20,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 153 [2021-11-13 17:31:20,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:31:21,417 INFO L129 PetriNetUnfolder]: 41/278 cut-off events. [2021-11-13 17:31:21,417 INFO L130 PetriNetUnfolder]: For 10/18 co-relation queries the response was YES. [2021-11-13 17:31:21,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 278 events. 41/278 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 596 event pairs, 18 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 443. Up to 77 conditions per place. [2021-11-13 17:31:21,424 INFO L132 encePairwiseOnDemand]: 134/153 looper letters, 80 selfloop transitions, 18 changer transitions 0/165 dead transitions. [2021-11-13 17:31:21,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 165 transitions, 533 flow [2021-11-13 17:31:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 17:31:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-13 17:31:21,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1449 transitions. [2021-11-13 17:31:21,437 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5261437908496732 [2021-11-13 17:31:21,438 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1449 transitions. [2021-11-13 17:31:21,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1449 transitions. [2021-11-13 17:31:21,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:31:21,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1449 transitions. [2021-11-13 17:31:21,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 80.5) internal successors, (1449), 18 states have internal predecessors, (1449), 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) [2021-11-13 17:31:21,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 153.0) internal successors, (2907), 19 states have internal predecessors, (2907), 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) [2021-11-13 17:31:21,460 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 153.0) internal successors, (2907), 19 states have internal predecessors, (2907), 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) [2021-11-13 17:31:21,461 INFO L186 Difference]: Start difference. First operand has 132 places, 125 transitions, 254 flow. Second operand 18 states and 1449 transitions. [2021-11-13 17:31:21,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 165 transitions, 533 flow [2021-11-13 17:31:21,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 165 transitions, 533 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-13 17:31:21,473 INFO L242 Difference]: Finished difference. Result has 153 places, 135 transitions, 352 flow [2021-11-13 17:31:21,474 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=352, PETRI_PLACES=153, PETRI_TRANSITIONS=135} [2021-11-13 17:31:21,475 INFO L334 CegarLoopForPetriNet]: 137 programPoint places, 16 predicate places. [2021-11-13 17:31:21,476 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 135 transitions, 352 flow [2021-11-13 17:31:21,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 77.93333333333334) internal successors, (1169), 15 states have internal predecessors, (1169), 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) [2021-11-13 17:31:21,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:31:21,480 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:21,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:21,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:21,690 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 17:31:21,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:21,690 INFO L85 PathProgramCache]: Analyzing trace with hash 550151925, now seen corresponding path program 1 times [2021-11-13 17:31:21,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:21,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864379065] [2021-11-13 17:31:21,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:21,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:21,735 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:31:21,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198390566] [2021-11-13 17:31:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:21,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:21,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:21,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:21,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df701c5-a091-4dfe-a896-b6b09cbb9497/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:31:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:22,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-13 17:31:22,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:26,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:12,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:32:12,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864379065] [2021-11-13 17:32:12,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:32:12,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198390566] [2021-11-13 17:32:12,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198390566] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:12,682 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:12,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 33 [2021-11-13 17:32:12,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864087353] [2021-11-13 17:32:12,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:12,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-13 17:32:12,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:32:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-13 17:32:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=955, Unknown=15, NotChecked=0, Total=1056 [2021-11-13 17:32:12,690 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 153 [2021-11-13 17:32:12,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 135 transitions, 352 flow. Second operand has 33 states, 33 states have (on average 73.66666666666667) internal successors, (2431), 33 states have internal predecessors, (2431), 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) [2021-11-13 17:32:12,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:32:12,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 153 [2021-11-13 17:32:12,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:32:14,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:16,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:22,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:24,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:32,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:38,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:46,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:49,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:56,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:32:57,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:26,775 WARN L227 SmtUtils]: Spent 20.82s on a formula simplification. DAG size of input: 59 DAG size of output: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:33:29,729 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_main_~b_in~0#1| 4294967296))) (let ((.cse4 (<= .cse7 0)) (.cse5 (< 0 .cse7)) (.cse1 (mod c_~b~0 4294967296)) (.cse2 (* c_~a~0 4294967295)) (.cse0 (mod |c_ULTIMATE.start_main_~a_in~0#1| 4294967296)) (.cse6 (mod |c_ULTIMATE.start_start_~b_in#1| 4294967296)) (.cse3 (mod c_~a~0 4294967296))) (and (< 0 (mod |c_ULTIMATE.start_start_#in~b_in#1| 4294967296)) (or (= (mod (mod .cse0 .cse1) 4294967296) 0) (and (or (not (= (mod (+ .cse2 .cse1 c_~b~0) (- 4294967296)) 0)) (<= .cse3 .cse1)) (not (= (mod (+ .cse2 .cse1) (- 4294967296)) 0)))) (or (and .cse4 (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)) (and (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) .cse5)) (not (= .cse1 .cse0)) (< 0 .cse6) (< .cse3 .cse0) (= |c_ULTIMATE.start_start_#in~a_in#1| |c_ULTIMATE.start_main_~a_in~0#1|) (or (and .cse4 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse5)) (= |c_ULTIMATE.start_start_~a_in#1| |c_ULTIMATE.start_main_~a_in~0#1|) (< 0 .cse1) .cse5 (or (and (= (+ c_~b~0 c_~a~0) |c_ULTIMATE.start_main_~a_in~0#1|) (< .cse1 .cse0)) (and (= c_~a~0 |c_ULTIMATE.start_main_~a_in~0#1|) (<= .cse0 .cse1))) (or (not (= (mod (+ .cse2 |c_ULTIMATE.start_start_~b_in#1| .cse6) (- 4294967296)) 0)) (= (mod (mod .cse0 .cse6) 4294967296) 0) (<= .cse3 .cse6)) (= (mod (+ c_~a~0 .cse3 (* |c_ULTIMATE.start_main_~a_in~0#1| 4294967295)) (- 4294967296)) 0)))) is different from false [2021-11-13 17:33:32,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:34,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:36,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:38,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:40,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:43,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:45,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:33:47,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:02,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:04,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:06,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:08,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:10,419 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (mod |c_ULTIMATE.start_main_~b_in~0#1| 4294967296))) (let ((.cse4 (<= .cse6 0)) (.cse5 (< 0 .cse6)) (.cse0 (mod |c_ULTIMATE.start_main_~a_in~0#1| 4294967296)) (.cse1 (mod c_~b~0 4294967296)) (.cse3 (mod c_~a~0 4294967296))) (and (< 0 (mod |c_ULTIMATE.start_start_#in~b_in#1| 4294967296)) (or (= (mod (mod .cse0 .cse1) 4294967296) 0) (let ((.cse2 (* c_~a~0 4294967295))) (and (or (not (= (mod (+ .cse2 .cse1 c_~b~0) (- 4294967296)) 0)) (<= .cse3 .cse1)) (not (= (mod (+ .cse2 .cse1) (- 4294967296)) 0))))) (or (and .cse4 (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)) (and (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) .cse5)) (not (= .cse1 .cse0)) (< 0 (mod |c_ULTIMATE.start_start_~b_in#1| 4294967296)) (< .cse3 .cse0) (= |c_ULTIMATE.start_start_#in~a_in#1| |c_ULTIMATE.start_main_~a_in~0#1|) (or (and .cse4 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse5)) (= |c_ULTIMATE.start_start_~a_in#1| |c_ULTIMATE.start_main_~a_in~0#1|) (< 0 .cse1) .cse5 (or (and (= (+ c_~b~0 c_~a~0) |c_ULTIMATE.start_main_~a_in~0#1|) (< .cse1 .cse0)) (and (= c_~a~0 |c_ULTIMATE.start_main_~a_in~0#1|) (<= .cse0 .cse1))) (= (mod (+ c_~a~0 .cse3 (* |c_ULTIMATE.start_main_~a_in~0#1| 4294967295)) (- 4294967296)) 0)))) is different from false [2021-11-13 17:34:12,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:14,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:17,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:34:57,355 WARN L227 SmtUtils]: Spent 31.45s on a formula simplification. DAG size of input: 65 DAG size of output: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:34:59,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:02,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:04,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:07,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:09,454 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_main_~a_in~0#1| 4294967296)) (.cse1 (mod c_~b~0 4294967296)) (.cse3 (mod c_~a~0 4294967296))) (and (or (= (mod (mod .cse0 .cse1) 4294967296) 0) (let ((.cse2 (* c_~a~0 4294967295))) (and (or (not (= (mod (+ .cse2 .cse1 c_~b~0) (- 4294967296)) 0)) (<= .cse3 .cse1)) (not (= (mod (+ .cse2 .cse1) (- 4294967296)) 0))))) (not (= .cse1 .cse0)) (< .cse3 .cse0) (< 0 .cse1) (or (and (= (+ c_~b~0 c_~a~0) |c_ULTIMATE.start_main_~a_in~0#1|) (< .cse1 .cse0)) (and (= c_~a~0 |c_ULTIMATE.start_main_~a_in~0#1|) (<= .cse0 .cse1))) (= (mod (+ c_~a~0 .cse3 (* |c_ULTIMATE.start_main_~a_in~0#1| 4294967295)) (- 4294967296)) 0))) is different from false [2021-11-13 17:35:11,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:13,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:15,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:17,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:19,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:35:21,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:03,581 WARN L227 SmtUtils]: Spent 34.19s on a formula simplification. DAG size of input: 57 DAG size of output: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:36:18,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:21,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:23,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:25,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:27,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:29,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:32,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:34,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:36,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:38,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:39,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:41,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:43,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:45,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:48,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:49,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:51,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:53,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:36:56,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:19,770 WARN L227 SmtUtils]: Spent 15.24s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:37:21,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:24,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:26,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:28,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:30,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:32,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:34,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:37,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:38,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:40,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:37:42,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:00,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:02,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:04,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:06,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:08,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:11,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:13,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:15,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:17,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:20,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:38:58,604 WARN L227 SmtUtils]: Spent 18.77s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:39:00,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:02,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:04,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:05,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:07,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:10,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:12,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:14,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:16,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:20,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:22,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:24,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:26,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:27,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:29,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:34,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:36,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:48,443 WARN L227 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 64 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:39:51,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:53,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:55,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:39:57,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:40:12,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:40:15,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:41:02,583 WARN L227 SmtUtils]: Spent 24.63s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:41:04,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:41:36,610 WARN L227 SmtUtils]: Spent 18.67s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:41:38,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:42:10,351 WARN L227 SmtUtils]: Spent 25.07s on a formula simplification. DAG size of input: 62 DAG size of output: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:42:23,138 WARN L227 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 69 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:42:25,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:42:27,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:42:29,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:42:31,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:42:52,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:43:44,660 WARN L227 SmtUtils]: Spent 28.34s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:43:59,078 WARN L227 SmtUtils]: Spent 11.94s on a formula simplification. DAG size of input: 76 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:44:01,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:44:30,964 WARN L227 SmtUtils]: Spent 15.90s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:44:33,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:45:17,350 WARN L227 SmtUtils]: Spent 37.75s on a formula simplification. DAG size of input: 67 DAG size of output: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:45:19,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:45:21,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:45:23,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:45:52,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-13 17:45:55,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []