./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pipeline.cil-1.c --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_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pipeline.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79bbe68806c3ba3852cd8c209d4ce80dca551636a131cc65daaf97524d927c63 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:20,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:20,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:20,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:20,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:20,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:20,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:20,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:20,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:20,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:20,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:20,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:20,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:20,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:20,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:20,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:20,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:20,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:20,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:20,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:20,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:20,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:20,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:20,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:20,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:20,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:20,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:20,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:20,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:20,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:20,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:20,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:20,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:20,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:20,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:20,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:20,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:20,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:20,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:20,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:20,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:20,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:41:20,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:20,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:20,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:20,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:20,797 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:20,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:20,798 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:20,798 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:41:20,799 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:20,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:20,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:41:20,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:41:20,800 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:20,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:41:20,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:41:20,801 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:41:20,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:20,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:41:20,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:41:20,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:41:20,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:20,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:20,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:20,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:20,804 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:41:20,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:41:20,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:20,805 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:20,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:20,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:20,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:20,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:20,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:20,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:20,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:20,808 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:41:20,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:41:20,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:20,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:20,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:20,809 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79bbe68806c3ba3852cd8c209d4ce80dca551636a131cc65daaf97524d927c63 [2021-11-12 22:41:21,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:21,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:21,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:21,138 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:21,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:21,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/systemc/pipeline.cil-1.c [2021-11-12 22:41:21,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/data/ded255dd2/75afd973d21f4abfa0e6d5adc0448576/FLAG1a8613296 [2021-11-12 22:41:21,754 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:21,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/sv-benchmarks/c/systemc/pipeline.cil-1.c [2021-11-12 22:41:21,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/data/ded255dd2/75afd973d21f4abfa0e6d5adc0448576/FLAG1a8613296 [2021-11-12 22:41:22,105 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/data/ded255dd2/75afd973d21f4abfa0e6d5adc0448576 [2021-11-12 22:41:22,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:22,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:22,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:22,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:22,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:22,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55963997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22, skipping insertion in model container [2021-11-12 22:41:22,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:22,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:22,351 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_b487a136-d2cc-4ea4-89c1-9699d12bd120/sv-benchmarks/c/systemc/pipeline.cil-1.c[640,653] [2021-11-12 22:41:22,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:22,454 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:41:22,468 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_b487a136-d2cc-4ea4-89c1-9699d12bd120/sv-benchmarks/c/systemc/pipeline.cil-1.c[640,653] [2021-11-12 22:41:22,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:22,535 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:22,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22 WrapperNode [2021-11-12 22:41:22,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:22,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:22,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:22,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:22,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:22,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:22,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:22,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:22,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:22,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:22,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:22,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:22,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (1/1) ... [2021-11-12 22:41:22,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:22,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:22,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:22,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:41:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:41:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-11-12 22:41:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-11-12 22:41:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:23,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:41:23,839 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-12 22:41:23,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:23 BoogieIcfgContainer [2021-11-12 22:41:23,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:41:23,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:41:23,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:41:23,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:41:23,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:41:22" (1/3) ... [2021-11-12 22:41:23,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbbbefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:23, skipping insertion in model container [2021-11-12 22:41:23,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:22" (2/3) ... [2021-11-12 22:41:23,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbbbefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:23, skipping insertion in model container [2021-11-12 22:41:23,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:23" (3/3) ... [2021-11-12 22:41:23,853 INFO L111 eAbstractionObserver]: Analyzing ICFG pipeline.cil-1.c [2021-11-12 22:41:23,860 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:41:23,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:41:23,923 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:41:23,930 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=FINITE_AUTOMATA, 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 [2021-11-12 22:41:23,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:41:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:41:23,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 22:41:23,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:23,965 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:23,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:23,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1030469667, now seen corresponding path program 1 times [2021-11-12 22:41:23,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:23,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683764906] [2021-11-12 22:41:23,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:23,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:24,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:24,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:24,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683764906] [2021-11-12 22:41:24,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683764906] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:24,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501213735] [2021-11-12 22:41:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:24,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:41:24,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:24,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:41:24,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 22:41:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:24,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:41:24,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:24,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:41:24,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501213735] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:24,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:41:24,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 2 [2021-11-12 22:41:24,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406617049] [2021-11-12 22:41:24,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:24,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:41:24,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:41:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:41:24,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:24,780 INFO L87 Difference]: Start difference. First operand has 30 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:41:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:24,844 INFO L93 Difference]: Finished difference Result 57 states and 92 transitions. [2021-11-12 22:41:24,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:41:24,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2021-11-12 22:41:24,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:24,857 INFO L225 Difference]: With dead ends: 57 [2021-11-12 22:41:24,857 INFO L226 Difference]: Without dead ends: 29 [2021-11-12 22:41:24,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:24,867 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.03ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:24,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 33.03ms Time] [2021-11-12 22:41:24,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-12 22:41:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-12 22:41:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.5) internal successors, (36), 25 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-12 22:41:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2021-11-12 22:41:24,912 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 42 transitions. Word has length 16 [2021-11-12 22:41:24,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:24,913 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 42 transitions. [2021-11-12 22:41:24,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:41:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2021-11-12 22:41:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-12 22:41:24,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:24,916 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:24,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-12 22:41:25,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-12 22:41:25,121 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:25,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1095063889, now seen corresponding path program 1 times [2021-11-12 22:41:25,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:25,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132253048] [2021-11-12 22:41:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:25,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:25,541 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:41:25,542 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:25,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132253048] [2021-11-12 22:41:25,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132253048] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:25,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777792825] [2021-11-12 22:41:25,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:25,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:41:25,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:25,544 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:41:25,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 22:41:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:25,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:41:25,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-12 22:41:25,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-12 22:41:26,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777792825] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:26,027 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:41:26,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [10] total 15 [2021-11-12 22:41:26,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847768051] [2021-11-12 22:41:26,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:26,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:41:26,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:41:26,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:41:26,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:41:26,030 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:41:26,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:26,154 INFO L93 Difference]: Finished difference Result 79 states and 115 transitions. [2021-11-12 22:41:26,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:41:26,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2021-11-12 22:41:26,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:26,158 INFO L225 Difference]: With dead ends: 79 [2021-11-12 22:41:26,159 INFO L226 Difference]: Without dead ends: 52 [2021-11-12 22:41:26,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:41:26,161 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 13 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.94ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.13ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:26,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 141 Invalid, 53 Unknown, 0 Unchecked, 3.94ms Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 86.13ms Time] [2021-11-12 22:41:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-12 22:41:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2021-11-12 22:41:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 37 states have internal predecessors, (48), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-12 22:41:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2021-11-12 22:41:26,175 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 40 [2021-11-12 22:41:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:26,176 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2021-11-12 22:41:26,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-12 22:41:26,176 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2021-11-12 22:41:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-12 22:41:26,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:26,182 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:26,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:26,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:41:26,409 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:41:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1731724527, now seen corresponding path program 1 times [2021-11-12 22:41:26,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:26,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561825141] [2021-11-12 22:41:26,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:26,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 6 proven. 207 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-11-12 22:41:26,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:26,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561825141] [2021-11-12 22:41:26,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561825141] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 22:41:26,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154763472] [2021-11-12 22:41:26,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:26,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:41:26,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:26,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:41:26,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b487a136-d2cc-4ea4-89c1-9699d12bd120/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 22:41:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:27,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 2143 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:41:27,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-12 22:41:27,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-12 22:41:28,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154763472] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:41:28,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707385134] [2021-11-12 22:41:28,064 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2021-11-12 22:41:28,064 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:41:28,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:41:28,072 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:41:28,072 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:41:28,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,131 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:41:28,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 22:41:28,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-11-12 22:41:28,186 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-11-12 22:41:28,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 22:41:28,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:41:28,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:41:28,225 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:41:28,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:41:28,259 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:41:28,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 22:41:28,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:41:28,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:41:28,296 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:41:28,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:41:28,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 22:41:28,345 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:41:28,346 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:254, output treesize:229 [2021-11-12 22:41:28,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-11-12 22:41:28,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,468 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,475 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,476 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 22:41:28,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,491 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,497 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-12 22:41:28,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,510 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,512 INFO L180 QuantifierPusher]: treesize reduction 16, result has 57.9 percent of original size [2021-11-12 22:41:28,514 INFO L185 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-11-12 22:41:28,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,515 INFO L180 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-11-12 22:41:28,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-12 22:41:28,521 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,528 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-12 22:41:28,536 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 22:41:28,541 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,545 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 22:41:28,567 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,574 INFO L185 QuantifierPusher]: treesize reduction 38, result has 9.5 percent of original size 4 [2021-11-12 22:41:28,577 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,579 INFO L180 QuantifierPusher]: treesize reduction 38, result has 50.6 percent of original size [2021-11-12 22:41:28,582 INFO L185 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-11-12 22:41:28,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:41:28,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:41:28,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,597 INFO L185 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-11-12 22:41:28,599 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,603 INFO L185 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-11-12 22:41:28,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-12 22:41:28,607 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:41:28,612 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:41:28,617 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:41:28,621 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,626 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.3 percent of original size [2021-11-12 22:41:28,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-11-12 22:41:28,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,653 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,655 INFO L180 QuantifierPusher]: treesize reduction 16, result has 57.9 percent of original size [2021-11-12 22:41:28,656 INFO L185 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-11-12 22:41:28,657 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,658 INFO L180 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-11-12 22:41:28,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-12 22:41:28,662 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 22:41:28,666 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:41:28,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:41:28,671 INFO L185 QuantifierPusher]: treesize reduction 16, result has 20.0 percent of original size 4 [2021-11-12 22:41:28,689 INFO L185 QuantifierPusher]: treesize reduction 8, result has 98.5 percent of original size 512 [2021-11-12 22:41:28,942 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 22:41:29,420 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 32768 conjuctions. This might take some time... [2021-11-12 22:44:14,947 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 32768 conjuctions. [2021-11-12 22:44:15,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:44:16,124 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 22:44:16,575 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 32768 conjuctions. This might take some time... [2021-11-12 22:47:24,022 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 32768 conjuctions. [2021-11-12 22:47:29,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms