./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a --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 a8791b6973aa1a0d5421161a634fa2e6c3276aa5fd05ed6d81de7a2762aa206a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:59:40,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:59:40,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:59:40,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:59:40,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:59:40,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:59:40,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:59:40,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:59:40,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:59:40,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:59:40,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:59:40,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:59:40,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:59:40,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:59:40,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:59:40,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:59:40,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:59:40,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:59:40,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:59:40,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:59:40,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:59:40,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:59:40,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:59:40,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:59:40,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:59:40,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:59:40,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:59:40,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:59:40,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:59:40,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:59:40,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:59:40,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:59:40,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:59:40,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:59:40,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:59:40,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:59:40,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:59:40,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:59:40,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:59:40,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:59:40,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:59:40,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:59:40,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:59:40,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:59:40,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:59:40,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:59:40,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:59:40,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:59:40,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:59:40,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:59:40,800 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:59:40,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:59:40,801 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:59:40,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:59:40,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:59:40,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:59:40,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:59:40,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:59:40,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:59:40,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:59:40,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:59:40,803 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:59:40,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:59:40,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:59:40,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:59:40,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:59:40,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:59:40,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:59:40,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:59:40,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:59:40,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:59:40,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:59:40,807 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:59:40,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:59:40,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:59:40,808 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_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8791b6973aa1a0d5421161a634fa2e6c3276aa5fd05ed6d81de7a2762aa206a [2022-11-21 16:59:41,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:59:41,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:59:41,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:59:41,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:59:41,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:59:41,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c [2022-11-21 16:59:44,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:59:44,616 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:59:44,617 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c [2022-11-21 16:59:44,626 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/data/bb8eee1d7/58dcd515d3c74c6aa069e8827a217e37/FLAG5188c1d23 [2022-11-21 16:59:44,640 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/data/bb8eee1d7/58dcd515d3c74c6aa069e8827a217e37 [2022-11-21 16:59:44,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:59:44,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:59:44,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:59:44,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:59:44,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:59:44,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304e0c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44, skipping insertion in model container [2022-11-21 16:59:44,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:59:44,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:59:44,835 WARN L237 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_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c[468,481] [2022-11-21 16:59:44,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:59:44,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:59:44,894 WARN L237 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_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/sv-benchmarks/c/loops-crafted-1/nested_delay_notd2.c[468,481] [2022-11-21 16:59:44,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:59:44,923 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:59:44,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44 WrapperNode [2022-11-21 16:59:44,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:59:44,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:59:44,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:59:44,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:59:44,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,966 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-21 16:59:44,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:59:44,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:59:44,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:59:44,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:59:44,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:44,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:45,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:45,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:45,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:45,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:59:45,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:59:45,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:59:45,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:59:45,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (1/1) ... [2022-11-21 16:59:45,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:59:45,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:45,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:59:45,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:59:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:59:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:59:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:59:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:59:45,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:59:45,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:59:45,326 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:59:45,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:59:45,333 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:59:45,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:59:45 BoogieIcfgContainer [2022-11-21 16:59:45,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:59:45,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:59:45,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:59:45,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:59:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:59:44" (1/3) ... [2022-11-21 16:59:45,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e603f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:59:45, skipping insertion in model container [2022-11-21 16:59:45,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:44" (2/3) ... [2022-11-21 16:59:45,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e603f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:59:45, skipping insertion in model container [2022-11-21 16:59:45,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:59:45" (3/3) ... [2022-11-21 16:59:45,346 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_delay_notd2.c [2022-11-21 16:59:45,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:59:45,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:59:45,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:59:45,482 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35fea962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:59:45,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:59:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:59:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:59:45,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:45,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:45,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:45,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:45,533 INFO L85 PathProgramCache]: Analyzing trace with hash -493598204, now seen corresponding path program 1 times [2022-11-21 16:59:45,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:45,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765556809] [2022-11-21 16:59:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:45,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:45,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:45,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:45,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765556809] [2022-11-21 16:59:45,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765556809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:45,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:45,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:59:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952376056] [2022-11-21 16:59:45,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:45,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:59:45,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:59:45,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:59:45,894 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:59:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:45,913 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2022-11-21 16:59:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:59:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:59:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:45,925 INFO L225 Difference]: With dead ends: 35 [2022-11-21 16:59:45,926 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 16:59:45,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:59:45,934 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:45,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:59:45,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 16:59:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-21 16:59:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2022-11-21 16:59:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2022-11-21 16:59:45,975 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 23 transitions. Word has length 12 [2022-11-21 16:59:45,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:45,977 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 23 transitions. [2022-11-21 16:59:45,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:59:45,979 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-11-21 16:59:45,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:59:45,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:45,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:45,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:59:45,981 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2059231113, now seen corresponding path program 1 times [2022-11-21 16:59:45,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:45,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856132978] [2022-11-21 16:59:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:46,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:46,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:46,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856132978] [2022-11-21 16:59:46,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856132978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:46,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:46,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:59:46,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442746666] [2022-11-21 16:59:46,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:46,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:59:46,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:46,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:59:46,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:59:46,163 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:59:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:46,224 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2022-11-21 16:59:46,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:59:46,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:59:46,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:46,226 INFO L225 Difference]: With dead ends: 34 [2022-11-21 16:59:46,226 INFO L226 Difference]: Without dead ends: 21 [2022-11-21 16:59:46,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:59:46,228 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:46,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:59:46,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-21 16:59:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2022-11-21 16:59:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 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) [2022-11-21 16:59:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2022-11-21 16:59:46,235 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 12 [2022-11-21 16:59:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:46,236 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-11-21 16:59:46,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:59:46,236 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-21 16:59:46,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:59:46,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:46,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:46,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:59:46,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash 573171571, now seen corresponding path program 1 times [2022-11-21 16:59:46,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:46,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918754613] [2022-11-21 16:59:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:46,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:59:46,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:46,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918754613] [2022-11-21 16:59:46,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918754613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:46,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:46,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:59:46,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371525270] [2022-11-21 16:59:46,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:46,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:59:46,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:46,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:59:46,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:59:46,316 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-21 16:59:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:46,383 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2022-11-21 16:59:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:59:46,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:59:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:46,389 INFO L225 Difference]: With dead ends: 41 [2022-11-21 16:59:46,389 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 16:59:46,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:59:46,391 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:46,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 34 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:59:46,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 16:59:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2022-11-21 16:59:46,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2022-11-21 16:59:46,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2022-11-21 16:59:46,407 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 15 [2022-11-21 16:59:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:46,409 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-21 16:59:46,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-21 16:59:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-11-21 16:59:46,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:59:46,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:46,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:46,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:59:46,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:46,416 INFO L85 PathProgramCache]: Analyzing trace with hash 630429873, now seen corresponding path program 1 times [2022-11-21 16:59:46,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:46,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466289065] [2022-11-21 16:59:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:46,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 16:59:46,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466289065] [2022-11-21 16:59:46,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466289065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:46,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:46,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:59:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230993376] [2022-11-21 16:59:46,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:46,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:59:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:59:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:59:46,685 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-21 16:59:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:46,719 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2022-11-21 16:59:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:59:46,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:59:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:46,722 INFO L225 Difference]: With dead ends: 49 [2022-11-21 16:59:46,722 INFO L226 Difference]: Without dead ends: 34 [2022-11-21 16:59:46,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:59:46,724 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 48 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:46,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 29 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:59:46,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-21 16:59:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-11-21 16:59:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 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) [2022-11-21 16:59:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2022-11-21 16:59:46,735 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 15 [2022-11-21 16:59:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:46,735 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2022-11-21 16:59:46,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-21 16:59:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2022-11-21 16:59:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:59:46,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:46,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:46,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:59:46,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash 630489455, now seen corresponding path program 1 times [2022-11-21 16:59:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:46,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956056544] [2022-11-21 16:59:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:46,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:46,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:46,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956056544] [2022-11-21 16:59:46,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956056544] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:46,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769934829] [2022-11-21 16:59:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:46,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:46,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:46,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:46,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:59:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:46,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:59:46,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:47,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:47,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769934829] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:47,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:59:47,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-21 16:59:47,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511967417] [2022-11-21 16:59:47,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:47,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:59:47,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:47,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:59:47,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:59:47,090 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 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) [2022-11-21 16:59:47,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:47,211 INFO L93 Difference]: Finished difference Result 79 states and 115 transitions. [2022-11-21 16:59:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:59:47,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:59:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:47,213 INFO L225 Difference]: With dead ends: 79 [2022-11-21 16:59:47,213 INFO L226 Difference]: Without dead ends: 51 [2022-11-21 16:59:47,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:59:47,216 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 45 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:47,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 18 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:59:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-21 16:59:47,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2022-11-21 16:59:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 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) [2022-11-21 16:59:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2022-11-21 16:59:47,228 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 15 [2022-11-21 16:59:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:47,229 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2022-11-21 16:59:47,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 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) [2022-11-21 16:59:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2022-11-21 16:59:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:59:47,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:47,231 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:47,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:59:47,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:47,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:47,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash -901646477, now seen corresponding path program 2 times [2022-11-21 16:59:47,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:47,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173771984] [2022-11-21 16:59:47,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:47,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:47,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:47,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173771984] [2022-11-21 16:59:47,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173771984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:47,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116668642] [2022-11-21 16:59:47,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:59:47,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:47,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:47,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:47,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:59:47,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:59:47,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:59:47,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:59:47,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-21 16:59:47,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-21 16:59:47,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116668642] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:47,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:59:47,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2022-11-21 16:59:47,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742006934] [2022-11-21 16:59:47,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:47,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:59:47,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:47,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:59:47,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:59:47,911 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 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) [2022-11-21 16:59:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:48,544 INFO L93 Difference]: Finished difference Result 237 states and 337 transitions. [2022-11-21 16:59:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-21 16:59:48,547 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 16:59:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:48,555 INFO L225 Difference]: With dead ends: 237 [2022-11-21 16:59:48,555 INFO L226 Difference]: Without dead ends: 191 [2022-11-21 16:59:48,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-11-21 16:59:48,563 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 302 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:48,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 66 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:59:48,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-21 16:59:48,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 170. [2022-11-21 16:59:48,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.2781065088757397) internal successors, (216), 169 states have internal predecessors, (216), 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) [2022-11-21 16:59:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 216 transitions. [2022-11-21 16:59:48,602 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 216 transitions. Word has length 24 [2022-11-21 16:59:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:48,602 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 216 transitions. [2022-11-21 16:59:48,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 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) [2022-11-21 16:59:48,603 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 216 transitions. [2022-11-21 16:59:48,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-21 16:59:48,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:48,604 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:48,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:59:48,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:48,810 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:48,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1843449907, now seen corresponding path program 1 times [2022-11-21 16:59:48,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:48,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905367978] [2022-11-21 16:59:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:59:48,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:48,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905367978] [2022-11-21 16:59:48,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905367978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:48,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:59:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914185743] [2022-11-21 16:59:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:48,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:59:48,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:59:48,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:59:48,876 INFO L87 Difference]: Start difference. First operand 170 states and 216 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-21 16:59:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:48,921 INFO L93 Difference]: Finished difference Result 381 states and 487 transitions. [2022-11-21 16:59:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:59:48,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-21 16:59:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:48,924 INFO L225 Difference]: With dead ends: 381 [2022-11-21 16:59:48,924 INFO L226 Difference]: Without dead ends: 215 [2022-11-21 16:59:48,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:59:48,930 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:48,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 43 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:59:48,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-21 16:59:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-11-21 16:59:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.2690355329949239) internal successors, (250), 197 states have internal predecessors, (250), 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) [2022-11-21 16:59:48,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 250 transitions. [2022-11-21 16:59:48,979 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 250 transitions. Word has length 30 [2022-11-21 16:59:48,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:48,980 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 250 transitions. [2022-11-21 16:59:48,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-21 16:59:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 250 transitions. [2022-11-21 16:59:48,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-21 16:59:48,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:48,987 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:48,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:59:48,987 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:48,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:48,988 INFO L85 PathProgramCache]: Analyzing trace with hash 399501479, now seen corresponding path program 1 times [2022-11-21 16:59:48,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:48,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101634676] [2022-11-21 16:59:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:48,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:49,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:49,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101634676] [2022-11-21 16:59:49,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101634676] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:49,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506458539] [2022-11-21 16:59:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:49,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:49,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:49,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:49,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:59:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:49,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:59:49,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:49,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:49,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506458539] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:49,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:59:49,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-11-21 16:59:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510138231] [2022-11-21 16:59:49,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:49,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-21 16:59:49,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-21 16:59:49,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=341, Unknown=0, NotChecked=0, Total=600 [2022-11-21 16:59:49,566 INFO L87 Difference]: Start difference. First operand 198 states and 250 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 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) [2022-11-21 16:59:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:49,848 INFO L93 Difference]: Finished difference Result 585 states and 801 transitions. [2022-11-21 16:59:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:59:49,849 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-21 16:59:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:49,851 INFO L225 Difference]: With dead ends: 585 [2022-11-21 16:59:49,851 INFO L226 Difference]: Without dead ends: 391 [2022-11-21 16:59:49,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=392, Invalid=600, Unknown=0, NotChecked=0, Total=992 [2022-11-21 16:59:49,853 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 165 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:49,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 37 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:59:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-21 16:59:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2022-11-21 16:59:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 389 states have (on average 1.2596401028277635) internal successors, (490), 389 states have internal predecessors, (490), 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) [2022-11-21 16:59:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 490 transitions. [2022-11-21 16:59:49,896 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 490 transitions. Word has length 31 [2022-11-21 16:59:49,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:49,897 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 490 transitions. [2022-11-21 16:59:49,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 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) [2022-11-21 16:59:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 490 transitions. [2022-11-21 16:59:49,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-21 16:59:49,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:49,899 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:49,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:59:50,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 16:59:50,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:50,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -871125337, now seen corresponding path program 2 times [2022-11-21 16:59:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:50,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085452514] [2022-11-21 16:59:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:50,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:50,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:50,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085452514] [2022-11-21 16:59:50,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085452514] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:50,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629777348] [2022-11-21 16:59:50,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:59:50,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:50,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:50,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:50,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:59:50,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:59:50,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:59:50,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 16:59:50,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:50,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:51,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629777348] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:51,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:59:51,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 38 [2022-11-21 16:59:51,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61255993] [2022-11-21 16:59:51,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:51,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-21 16:59:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-21 16:59:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=612, Invalid=870, Unknown=0, NotChecked=0, Total=1482 [2022-11-21 16:59:51,332 INFO L87 Difference]: Start difference. First operand 390 states and 490 transitions. Second operand has 39 states, 39 states have (on average 3.076923076923077) internal successors, (120), 38 states have internal predecessors, (120), 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) [2022-11-21 16:59:51,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:51,677 INFO L93 Difference]: Finished difference Result 921 states and 1205 transitions. [2022-11-21 16:59:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-21 16:59:51,678 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.076923076923077) internal successors, (120), 38 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-11-21 16:59:51,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:51,680 INFO L225 Difference]: With dead ends: 921 [2022-11-21 16:59:51,681 INFO L226 Difference]: Without dead ends: 535 [2022-11-21 16:59:51,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 78 SyntacticMatches, 10 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=737, Invalid=1155, Unknown=0, NotChecked=0, Total=1892 [2022-11-21 16:59:51,683 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 245 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:51,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 27 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:59:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-21 16:59:51,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 534. [2022-11-21 16:59:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.2570356472795496) internal successors, (670), 533 states have internal predecessors, (670), 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) [2022-11-21 16:59:51,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 670 transitions. [2022-11-21 16:59:51,751 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 670 transitions. Word has length 55 [2022-11-21 16:59:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:51,752 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 670 transitions. [2022-11-21 16:59:51,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.076923076923077) internal successors, (120), 38 states have internal predecessors, (120), 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) [2022-11-21 16:59:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 670 transitions. [2022-11-21 16:59:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-21 16:59:51,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:51,753 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:51,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:59:51,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:51,960 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:51,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1639992537, now seen corresponding path program 3 times [2022-11-21 16:59:51,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:51,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576819645] [2022-11-21 16:59:51,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:51,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:53,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576819645] [2022-11-21 16:59:53,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576819645] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:53,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613732592] [2022-11-21 16:59:53,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:59:53,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:53,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:53,027 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:53,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:59:53,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-21 16:59:53,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:59:53,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 16:59:53,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2022-11-21 16:59:53,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:59:53,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613732592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:53,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:59:53,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [27] total 31 [2022-11-21 16:59:53,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461751639] [2022-11-21 16:59:53,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:53,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:59:53,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:59:53,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=631, Unknown=0, NotChecked=0, Total=930 [2022-11-21 16:59:53,537 INFO L87 Difference]: Start difference. First operand 534 states and 670 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:59:53,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:53,742 INFO L93 Difference]: Finished difference Result 1188 states and 1481 transitions. [2022-11-21 16:59:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:59:53,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-21 16:59:53,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:53,750 INFO L225 Difference]: With dead ends: 1188 [2022-11-21 16:59:53,750 INFO L226 Difference]: Without dead ends: 1186 [2022-11-21 16:59:53,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=687, Unknown=0, NotChecked=0, Total=992 [2022-11-21 16:59:53,753 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 24 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:53,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 52 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:59:53,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2022-11-21 16:59:53,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 732. [2022-11-21 16:59:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.2476060191518468) internal successors, (912), 731 states have internal predecessors, (912), 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) [2022-11-21 16:59:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 912 transitions. [2022-11-21 16:59:53,825 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 912 transitions. Word has length 73 [2022-11-21 16:59:53,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:53,826 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 912 transitions. [2022-11-21 16:59:53,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:59:53,826 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 912 transitions. [2022-11-21 16:59:53,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-21 16:59:53,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:53,828 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:53,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-21 16:59:54,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 16:59:54,034 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash -336186329, now seen corresponding path program 1 times [2022-11-21 16:59:54,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:54,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44097627] [2022-11-21 16:59:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 16:59:54,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:54,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44097627] [2022-11-21 16:59:54,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44097627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:54,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:54,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-21 16:59:54,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395334297] [2022-11-21 16:59:54,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:54,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 16:59:54,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:54,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 16:59:54,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:59:54,512 INFO L87 Difference]: Start difference. First operand 732 states and 912 transitions. Second operand has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 22 states have internal predecessors, (72), 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) [2022-11-21 16:59:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:55,032 INFO L93 Difference]: Finished difference Result 3122 states and 4018 transitions. [2022-11-21 16:59:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 16:59:55,033 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 22 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-21 16:59:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:55,042 INFO L225 Difference]: With dead ends: 3122 [2022-11-21 16:59:55,043 INFO L226 Difference]: Without dead ends: 2671 [2022-11-21 16:59:55,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:59:55,045 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 535 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:55,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 146 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:59:55,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-11-21 16:59:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 739. [2022-11-21 16:59:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 1.1761517615176151) internal successors, (868), 738 states have internal predecessors, (868), 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) [2022-11-21 16:59:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 868 transitions. [2022-11-21 16:59:55,159 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 868 transitions. Word has length 73 [2022-11-21 16:59:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:55,159 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 868 transitions. [2022-11-21 16:59:55,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 22 states have internal predecessors, (72), 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) [2022-11-21 16:59:55,159 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 868 transitions. [2022-11-21 16:59:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-21 16:59:55,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:55,161 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:55,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:59:55,161 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:55,161 INFO L85 PathProgramCache]: Analyzing trace with hash 243663591, now seen corresponding path program 2 times [2022-11-21 16:59:55,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:55,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323231734] [2022-11-21 16:59:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:56,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:56,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323231734] [2022-11-21 16:59:56,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323231734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:59:56,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235007344] [2022-11-21 16:59:56,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:59:56,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:59:56,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:56,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:59:56,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:59:56,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:59:56,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:59:56,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-21 16:59:56,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:57,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:59:59,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235007344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:59,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:59:59,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27, 27] total 75 [2022-11-21 16:59:59,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369053250] [2022-11-21 16:59:59,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:59,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-11-21 16:59:59,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:59,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-11-21 16:59:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1499, Invalid=4201, Unknown=0, NotChecked=0, Total=5700 [2022-11-21 16:59:59,915 INFO L87 Difference]: Start difference. First operand 739 states and 868 transitions. Second operand has 76 states, 76 states have (on average 2.6973684210526314) internal successors, (205), 75 states have internal predecessors, (205), 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) [2022-11-21 17:00:10,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:10,426 INFO L93 Difference]: Finished difference Result 2093 states and 2470 transitions. [2022-11-21 17:00:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-11-21 17:00:10,426 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.6973684210526314) internal successors, (205), 75 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-21 17:00:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:10,432 INFO L225 Difference]: With dead ends: 2093 [2022-11-21 17:00:10,432 INFO L226 Difference]: Without dead ends: 1697 [2022-11-21 17:00:10,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19147 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=7653, Invalid=40527, Unknown=0, NotChecked=0, Total=48180 [2022-11-21 17:00:10,443 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1547 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:10,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 142 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 17:00:10,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-11-21 17:00:10,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1038. [2022-11-21 17:00:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1037 states have (on average 1.2256509161041467) internal successors, (1271), 1037 states have internal predecessors, (1271), 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) [2022-11-21 17:00:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1271 transitions. [2022-11-21 17:00:10,575 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1271 transitions. Word has length 73 [2022-11-21 17:00:10,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:10,575 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 1271 transitions. [2022-11-21 17:00:10,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.6973684210526314) internal successors, (205), 75 states have internal predecessors, (205), 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) [2022-11-21 17:00:10,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1271 transitions. [2022-11-21 17:00:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-21 17:00:10,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:10,577 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:10,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:00:10,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:00:10,786 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1623737319, now seen corresponding path program 1 times [2022-11-21 17:00:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:10,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779966519] [2022-11-21 17:00:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:10,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-11-21 17:00:10,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:10,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779966519] [2022-11-21 17:00:10,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779966519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:10,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:10,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:00:10,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417789215] [2022-11-21 17:00:10,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:10,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:00:10,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:10,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:00:10,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:00:10,898 INFO L87 Difference]: Start difference. First operand 1038 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-21 17:00:11,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:11,112 INFO L93 Difference]: Finished difference Result 1734 states and 2124 transitions. [2022-11-21 17:00:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:00:11,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-21 17:00:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:11,117 INFO L225 Difference]: With dead ends: 1734 [2022-11-21 17:00:11,117 INFO L226 Difference]: Without dead ends: 1388 [2022-11-21 17:00:11,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:00:11,119 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 76 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:11,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 39 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:00:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-11-21 17:00:11,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1108. [2022-11-21 17:00:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 1.2321589882565491) internal successors, (1364), 1107 states have internal predecessors, (1364), 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) [2022-11-21 17:00:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1364 transitions. [2022-11-21 17:00:11,284 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1364 transitions. Word has length 73 [2022-11-21 17:00:11,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:11,284 INFO L495 AbstractCegarLoop]: Abstraction has 1108 states and 1364 transitions. [2022-11-21 17:00:11,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-21 17:00:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1364 transitions. [2022-11-21 17:00:11,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-21 17:00:11,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:11,292 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:11,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:00:11,293 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:11,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:11,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2061521628, now seen corresponding path program 1 times [2022-11-21 17:00:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:11,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025240970] [2022-11-21 17:00:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:11,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:12,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 0 proven. 1838 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-11-21 17:00:12,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:12,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025240970] [2022-11-21 17:00:12,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025240970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:00:12,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139950392] [2022-11-21 17:00:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:12,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:00:12,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:12,465 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:00:12,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 17:00:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:12,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-21 17:00:12,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:00:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 0 proven. 1838 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-11-21 17:00:14,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:00:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 0 proven. 1837 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-11-21 17:00:16,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139950392] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:00:16,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:00:16,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28, 26] total 74 [2022-11-21 17:00:16,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702060694] [2022-11-21 17:00:16,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:00:16,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-11-21 17:00:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:16,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-11-21 17:00:16,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1582, Invalid=3968, Unknown=0, NotChecked=0, Total=5550 [2022-11-21 17:00:16,864 INFO L87 Difference]: Start difference. First operand 1108 states and 1364 transitions. Second operand has 75 states, 75 states have (on average 3.1333333333333333) internal successors, (235), 74 states have internal predecessors, (235), 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) [2022-11-21 17:00:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:21,177 INFO L93 Difference]: Finished difference Result 1717 states and 2090 transitions. [2022-11-21 17:00:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-21 17:00:21,178 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.1333333333333333) internal successors, (235), 74 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-11-21 17:00:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:21,182 INFO L225 Difference]: With dead ends: 1717 [2022-11-21 17:00:21,182 INFO L226 Difference]: Without dead ends: 1073 [2022-11-21 17:00:21,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 234 SyntacticMatches, 3 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10335 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=5777, Invalid=22953, Unknown=0, NotChecked=0, Total=28730 [2022-11-21 17:00:21,187 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1539 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:21,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 84 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:00:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-21 17:00:21,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 829. [2022-11-21 17:00:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.1920289855072463) internal successors, (987), 828 states have internal predecessors, (987), 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) [2022-11-21 17:00:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 987 transitions. [2022-11-21 17:00:21,316 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 987 transitions. Word has length 142 [2022-11-21 17:00:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:21,317 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 987 transitions. [2022-11-21 17:00:21,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.1333333333333333) internal successors, (235), 74 states have internal predecessors, (235), 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) [2022-11-21 17:00:21,317 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 987 transitions. [2022-11-21 17:00:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-21 17:00:21,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:21,319 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:21,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:00:21,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 17:00:21,530 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:21,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2032536794, now seen corresponding path program 1 times [2022-11-21 17:00:21,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:21,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600302082] [2022-11-21 17:00:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:21,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 2 proven. 1246 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2022-11-21 17:00:21,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:21,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600302082] [2022-11-21 17:00:21,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600302082] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:00:21,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234920024] [2022-11-21 17:00:21,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:21,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:00:21,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:21,717 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:00:21,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 17:00:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:21,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 17:00:21,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:00:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 2 proven. 1246 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2022-11-21 17:00:22,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:00:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 2 proven. 1246 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2022-11-21 17:00:22,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234920024] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:00:22,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:00:22,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-21 17:00:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684530094] [2022-11-21 17:00:22,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:00:22,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:22,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:22,474 INFO L87 Difference]: Start difference. First operand 829 states and 987 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 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) [2022-11-21 17:00:22,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:22,805 INFO L93 Difference]: Finished difference Result 2539 states and 3079 transitions. [2022-11-21 17:00:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:00:22,809 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-11-21 17:00:22,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:22,813 INFO L225 Difference]: With dead ends: 2539 [2022-11-21 17:00:22,813 INFO L226 Difference]: Without dead ends: 1109 [2022-11-21 17:00:22,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=140, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:00:22,816 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 260 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:22,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 84 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:00:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-11-21 17:00:22,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1105. [2022-11-21 17:00:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1104 states have (on average 1.151268115942029) internal successors, (1271), 1104 states have internal predecessors, (1271), 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) [2022-11-21 17:00:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1271 transitions. [2022-11-21 17:00:22,925 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1271 transitions. Word has length 142 [2022-11-21 17:00:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:22,926 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1271 transitions. [2022-11-21 17:00:22,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 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) [2022-11-21 17:00:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1271 transitions. [2022-11-21 17:00:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-21 17:00:22,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:22,947 INFO L195 NwaCegarLoop]: trace histogram [120, 120, 120, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:22,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:00:23,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 17:00:23,153 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:23,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:23,154 INFO L85 PathProgramCache]: Analyzing trace with hash 449680486, now seen corresponding path program 2 times [2022-11-21 17:00:23,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:23,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419038036] [2022-11-21 17:00:23,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:23,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 22270 backedges. 10 proven. 18720 refuted. 0 times theorem prover too weak. 3540 trivial. 0 not checked. [2022-11-21 17:00:23,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:23,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419038036] [2022-11-21 17:00:23,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419038036] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:00:23,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176063621] [2022-11-21 17:00:23,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:00:23,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:00:23,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:23,686 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:00:23,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 17:00:23,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:00:23,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:00:23,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 17:00:23,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:00:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 22270 backedges. 10 proven. 18720 refuted. 0 times theorem prover too weak. 3540 trivial. 0 not checked. [2022-11-21 17:00:25,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:00:26,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22270 backedges. 10 proven. 18720 refuted. 0 times theorem prover too weak. 3540 trivial. 0 not checked. [2022-11-21 17:00:26,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176063621] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:00:26,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:00:26,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-11-21 17:00:26,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272218876] [2022-11-21 17:00:26,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:00:26,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-21 17:00:26,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:26,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-21 17:00:26,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=341, Unknown=0, NotChecked=0, Total=600 [2022-11-21 17:00:26,041 INFO L87 Difference]: Start difference. First operand 1105 states and 1271 transitions. Second operand has 25 states, 25 states have (on average 8.76) internal successors, (219), 24 states have internal predecessors, (219), 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) [2022-11-21 17:00:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:26,729 INFO L93 Difference]: Finished difference Result 4179 states and 5031 transitions. [2022-11-21 17:00:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 17:00:26,730 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.76) internal successors, (219), 24 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 418 [2022-11-21 17:00:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:26,736 INFO L225 Difference]: With dead ends: 4179 [2022-11-21 17:00:26,736 INFO L226 Difference]: Without dead ends: 1665 [2022-11-21 17:00:26,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=392, Invalid=600, Unknown=0, NotChecked=0, Total=992 [2022-11-21 17:00:26,740 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 655 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:26,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 188 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:00:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-11-21 17:00:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1657. [2022-11-21 17:00:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1656 states have (on average 1.1105072463768115) internal successors, (1839), 1656 states have internal predecessors, (1839), 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) [2022-11-21 17:00:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 1839 transitions. [2022-11-21 17:00:26,974 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 1839 transitions. Word has length 418 [2022-11-21 17:00:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:26,977 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 1839 transitions. [2022-11-21 17:00:26,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.76) internal successors, (219), 24 states have internal predecessors, (219), 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) [2022-11-21 17:00:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 1839 transitions. [2022-11-21 17:00:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2022-11-21 17:00:27,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:27,012 INFO L195 NwaCegarLoop]: trace histogram [280, 280, 280, 14, 14, 14, 14, 14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:27,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 17:00:27,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 17:00:27,219 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash 133527270, now seen corresponding path program 3 times [2022-11-21 17:00:27,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:27,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33129516] [2022-11-21 17:00:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:27,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 121906 backedges. 26 proven. 113620 refuted. 0 times theorem prover too weak. 8260 trivial. 0 not checked. [2022-11-21 17:00:29,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:29,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33129516] [2022-11-21 17:00:29,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33129516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:00:29,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105347424] [2022-11-21 17:00:29,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:00:29,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:00:29,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:29,494 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:00:29,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 17:00:30,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 132 check-sat command(s) [2022-11-21 17:00:30,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:00:30,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 17:00:30,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:00:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 121906 backedges. 26 proven. 113620 refuted. 0 times theorem prover too weak. 8260 trivial. 0 not checked. [2022-11-21 17:00:34,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:00:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 121906 backedges. 26 proven. 113620 refuted. 0 times theorem prover too weak. 8260 trivial. 0 not checked. [2022-11-21 17:00:35,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105347424] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:00:35,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:00:35,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 38 [2022-11-21 17:00:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966149732] [2022-11-21 17:00:35,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:00:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-21 17:00:35,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-21 17:00:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=612, Invalid=870, Unknown=0, NotChecked=0, Total=1482 [2022-11-21 17:00:35,898 INFO L87 Difference]: Start difference. First operand 1657 states and 1839 transitions. Second operand has 39 states, 39 states have (on average 10.333333333333334) internal successors, (403), 38 states have internal predecessors, (403), 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) [2022-11-21 17:00:36,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:36,591 INFO L93 Difference]: Finished difference Result 4049 states and 4765 transitions. [2022-11-21 17:00:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-21 17:00:36,592 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 10.333333333333334) internal successors, (403), 38 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 970 [2022-11-21 17:00:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:36,601 INFO L225 Difference]: With dead ends: 4049 [2022-11-21 17:00:36,601 INFO L226 Difference]: Without dead ends: 2077 [2022-11-21 17:00:36,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1960 GetRequests, 1908 SyntacticMatches, 10 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=737, Invalid=1155, Unknown=0, NotChecked=0, Total=1892 [2022-11-21 17:00:36,605 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 749 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:36,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 231 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:00:36,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-11-21 17:00:36,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2071. [2022-11-21 17:00:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2071 states, 2070 states have (on average 1.0942028985507246) internal successors, (2265), 2070 states have internal predecessors, (2265), 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) [2022-11-21 17:00:36,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 2265 transitions. [2022-11-21 17:00:36,866 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 2265 transitions. Word has length 970 [2022-11-21 17:00:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:36,868 INFO L495 AbstractCegarLoop]: Abstraction has 2071 states and 2265 transitions. [2022-11-21 17:00:36,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 10.333333333333334) internal successors, (403), 38 states have internal predecessors, (403), 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) [2022-11-21 17:00:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 2265 transitions. [2022-11-21 17:00:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2022-11-21 17:00:36,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:36,885 INFO L195 NwaCegarLoop]: trace histogram [400, 400, 400, 20, 20, 20, 20, 20, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:36,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 17:00:37,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 17:00:37,093 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:37,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 341765318, now seen corresponding path program 4 times [2022-11-21 17:00:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:37,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767888146] [2022-11-21 17:00:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:37,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:00:37,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:00:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:00:39,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:00:39,113 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:00:39,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:00:39,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 17:00:39,123 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:39,129 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:00:39,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:00:39 BoogieIcfgContainer [2022-11-21 17:00:39,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:00:39,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:00:39,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:00:39,540 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:00:39,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:59:45" (3/4) ... [2022-11-21 17:00:39,545 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 17:00:39,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:00:39,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:00:39,881 INFO L158 Benchmark]: Toolchain (without parser) took 55236.66ms. Allocated memory was 148.9MB in the beginning and 553.6MB in the end (delta: 404.8MB). Free memory was 119.1MB in the beginning and 334.6MB in the end (delta: -215.5MB). Peak memory consumption was 190.9MB. Max. memory is 16.1GB. [2022-11-21 17:00:39,881 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:00:39,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.02ms. Allocated memory is still 148.9MB. Free memory was 119.1MB in the beginning and 108.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:00:39,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.76ms. Allocated memory is still 148.9MB. Free memory was 108.0MB in the beginning and 106.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:00:39,882 INFO L158 Benchmark]: Boogie Preprocessor took 54.58ms. Allocated memory is still 148.9MB. Free memory was 106.5MB in the beginning and 105.9MB in the end (delta: 616.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:00:39,882 INFO L158 Benchmark]: RCFGBuilder took 313.10ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 94.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:00:39,883 INFO L158 Benchmark]: TraceAbstraction took 54200.25ms. Allocated memory was 148.9MB in the beginning and 553.6MB in the end (delta: 404.8MB). Free memory was 93.9MB in the beginning and 395.4MB in the end (delta: -301.5MB). Peak memory consumption was 312.5MB. Max. memory is 16.1GB. [2022-11-21 17:00:39,883 INFO L158 Benchmark]: Witness Printer took 340.81ms. Allocated memory is still 553.6MB. Free memory was 395.4MB in the beginning and 334.6MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-21 17:00:39,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.02ms. Allocated memory is still 148.9MB. Free memory was 119.1MB in the beginning and 108.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.76ms. Allocated memory is still 148.9MB. Free memory was 108.0MB in the beginning and 106.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.58ms. Allocated memory is still 148.9MB. Free memory was 106.5MB in the beginning and 105.9MB in the end (delta: 616.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.10ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 94.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 54200.25ms. Allocated memory was 148.9MB in the beginning and 553.6MB in the end (delta: 404.8MB). Free memory was 93.9MB in the beginning and 395.4MB in the end (delta: -301.5MB). Peak memory consumption was 312.5MB. Max. memory is 16.1GB. * Witness Printer took 340.81ms. Allocated memory is still 553.6MB. Free memory was 395.4MB in the beginning and 334.6MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L9] int last ; [L18] int SIZE = 20; VAL [last=0, SIZE=20] [L20] last = __VERIFIER_nondet_int() [L21] CALL assume_abort_if_not(last > 0) [L6] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L21] RET assume_abort_if_not(last > 0) [L22] int a=0,b=0,c=0,st=0,d=0; VAL [a=0, b=0, c=0, d=0, last=21, SIZE=20, st=0] [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=0, b=0, c=0, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=0, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=1, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=1, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=2, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=2, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=3, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=3, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=4, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=4, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=5, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=5, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=6, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=6, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=7, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=7, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=8, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=8, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=9, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=9, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=10, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=10, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=11, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=11, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=12, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=12, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=13, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=13, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=14, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=14, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=15, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=15, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=16, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=16, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=17, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=17, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=18, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=18, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=19, d=0, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=0, b=0, c=19, d=0, last=21, SIZE=20, st=1] [L25] c++ VAL [a=0, b=0, c=20, d=0, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=2, b=2, c=20, d=1, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=2, b=2, c=20, d=1, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=2, b=2, c=0, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=0, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=1, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=1, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=2, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=2, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=3, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=3, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=4, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=4, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=5, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=5, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=6, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=6, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=7, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=7, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=8, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=8, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=9, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=9, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=10, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=10, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=11, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=11, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=12, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=12, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=13, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=13, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=14, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=14, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=15, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=15, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=16, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=16, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=17, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=17, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=18, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=18, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=19, d=1, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=2, b=2, c=19, d=1, last=21, SIZE=20, st=1] [L25] c++ VAL [a=2, b=2, c=20, d=1, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=4, b=4, c=20, d=2, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=4, b=4, c=20, d=2, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=4, b=4, c=0, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=0, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=1, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=1, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=2, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=2, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=3, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=3, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=4, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=4, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=5, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=5, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=6, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=6, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=7, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=7, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=8, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=8, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=9, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=9, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=10, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=10, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=11, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=11, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=12, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=12, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=13, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=13, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=14, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=14, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=15, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=15, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=16, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=16, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=17, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=17, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=18, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=18, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=19, d=2, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=4, b=4, c=19, d=2, last=21, SIZE=20, st=1] [L25] c++ VAL [a=4, b=4, c=20, d=2, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=6, b=6, c=20, d=3, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=6, b=6, c=20, d=3, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=6, b=6, c=0, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=0, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=1, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=1, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=2, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=2, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=3, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=3, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=4, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=4, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=5, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=5, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=6, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=6, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=7, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=7, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=8, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=8, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=9, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=9, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=10, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=10, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=11, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=11, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=12, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=12, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=13, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=13, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=14, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=14, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=15, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=15, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=16, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=16, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=17, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=17, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=18, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=18, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=19, d=3, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=6, b=6, c=19, d=3, last=21, SIZE=20, st=1] [L25] c++ VAL [a=6, b=6, c=20, d=3, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=8, b=8, c=20, d=4, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=8, b=8, c=20, d=4, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=8, b=8, c=0, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=0, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=1, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=1, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=2, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=2, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=3, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=3, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=4, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=4, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=5, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=5, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=6, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=6, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=7, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=7, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=8, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=8, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=9, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=9, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=10, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=10, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=11, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=11, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=12, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=12, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=13, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=13, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=14, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=14, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=15, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=15, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=16, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=16, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=17, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=17, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=18, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=18, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=19, d=4, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=8, b=8, c=19, d=4, last=21, SIZE=20, st=1] [L25] c++ VAL [a=8, b=8, c=20, d=4, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=10, b=10, c=20, d=5, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=10, b=10, c=20, d=5, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=10, b=10, c=0, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=0, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=1, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=1, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=2, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=2, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=3, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=3, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=4, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=4, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=5, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=5, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=6, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=6, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=7, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=7, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=8, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=8, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=9, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=9, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=10, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=10, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=11, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=11, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=12, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=12, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=13, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=13, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=14, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=14, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=15, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=15, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=16, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=16, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=17, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=17, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=18, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=18, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=19, d=5, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=10, b=10, c=19, d=5, last=21, SIZE=20, st=1] [L25] c++ VAL [a=10, b=10, c=20, d=5, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=12, b=12, c=20, d=6, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=12, b=12, c=20, d=6, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=12, b=12, c=0, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=0, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=1, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=1, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=2, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=2, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=3, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=3, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=4, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=4, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=5, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=5, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=6, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=6, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=7, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=7, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=8, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=8, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=9, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=9, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=10, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=10, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=11, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=11, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=12, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=12, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=13, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=13, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=14, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=14, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=15, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=15, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=16, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=16, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=17, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=17, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=18, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=18, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=19, d=6, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=12, b=12, c=19, d=6, last=21, SIZE=20, st=1] [L25] c++ VAL [a=12, b=12, c=20, d=6, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=14, b=14, c=20, d=7, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=14, b=14, c=20, d=7, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=14, b=14, c=0, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=0, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=1, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=1, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=2, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=2, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=3, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=3, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=4, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=4, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=5, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=5, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=6, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=6, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=7, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=7, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=8, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=8, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=9, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=9, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=10, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=10, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=11, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=11, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=12, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=12, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=13, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=13, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=14, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=14, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=15, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=15, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=16, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=16, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=17, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=17, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=18, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=18, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=19, d=7, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=14, b=14, c=19, d=7, last=21, SIZE=20, st=1] [L25] c++ VAL [a=14, b=14, c=20, d=7, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=16, b=16, c=20, d=8, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=16, b=16, c=20, d=8, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=16, b=16, c=0, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=0, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=1, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=1, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=2, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=2, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=3, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=3, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=4, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=4, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=5, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=5, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=6, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=6, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=7, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=7, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=8, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=8, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=9, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=9, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=10, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=10, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=11, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=11, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=12, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=12, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=13, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=13, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=14, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=14, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=15, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=15, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=16, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=16, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=17, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=17, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=18, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=18, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=19, d=8, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=16, b=16, c=19, d=8, last=21, SIZE=20, st=1] [L25] c++ VAL [a=16, b=16, c=20, d=8, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=18, b=18, c=20, d=9, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=18, b=18, c=20, d=9, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=18, b=18, c=0, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=0, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=1, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=1, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=2, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=2, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=3, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=3, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=4, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=4, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=5, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=5, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=6, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=6, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=7, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=7, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=8, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=8, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=9, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=9, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=10, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=10, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=11, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=11, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=12, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=12, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=13, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=13, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=14, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=14, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=15, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=15, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=16, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=16, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=17, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=17, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=18, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=18, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=19, d=9, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=18, b=18, c=19, d=9, last=21, SIZE=20, st=1] [L25] c++ VAL [a=18, b=18, c=20, d=9, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=20, b=20, c=20, d=10, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=20, b=20, c=20, d=10, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=20, b=20, c=0, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=0, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=1, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=1, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=2, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=2, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=3, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=3, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=4, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=4, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=5, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=5, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=6, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=6, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=7, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=7, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=8, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=8, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=9, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=9, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=10, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=10, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=11, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=11, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=12, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=12, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=13, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=13, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=14, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=14, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=15, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=15, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=16, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=16, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=17, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=17, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=18, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=18, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=19, d=10, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=20, b=20, c=19, d=10, last=21, SIZE=20, st=1] [L25] c++ VAL [a=20, b=20, c=20, d=10, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=22, b=22, c=20, d=11, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=22, b=22, c=20, d=11, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=22, b=22, c=0, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=0, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=1, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=1, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=2, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=2, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=3, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=3, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=4, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=4, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=5, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=5, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=6, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=6, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=7, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=7, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=8, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=8, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=9, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=9, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=10, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=10, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=11, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=11, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=12, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=12, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=13, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=13, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=14, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=14, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=15, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=15, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=16, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=16, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=17, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=17, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=18, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=18, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=19, d=11, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=22, b=22, c=19, d=11, last=21, SIZE=20, st=1] [L25] c++ VAL [a=22, b=22, c=20, d=11, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=24, b=24, c=20, d=12, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=24, b=24, c=20, d=12, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=24, b=24, c=0, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=0, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=1, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=1, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=2, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=2, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=3, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=3, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=4, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=4, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=5, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=5, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=6, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=6, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=7, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=7, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=8, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=8, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=9, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=9, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=10, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=10, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=11, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=11, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=12, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=12, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=13, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=13, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=14, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=14, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=15, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=15, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=16, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=16, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=17, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=17, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=18, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=18, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=19, d=12, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=24, b=24, c=19, d=12, last=21, SIZE=20, st=1] [L25] c++ VAL [a=24, b=24, c=20, d=12, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=26, b=26, c=20, d=13, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=26, b=26, c=20, d=13, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=26, b=26, c=0, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=0, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=1, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=1, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=2, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=2, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=3, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=3, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=4, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=4, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=5, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=5, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=6, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=6, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=7, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=7, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=8, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=8, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=9, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=9, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=10, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=10, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=11, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=11, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=12, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=12, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=13, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=13, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=14, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=14, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=15, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=15, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=16, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=16, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=17, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=17, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=18, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=18, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=19, d=13, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=26, b=26, c=19, d=13, last=21, SIZE=20, st=1] [L25] c++ VAL [a=26, b=26, c=20, d=13, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=28, b=28, c=20, d=14, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=28, b=28, c=20, d=14, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=28, b=28, c=0, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=0, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=1, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=1, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=2, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=2, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=3, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=3, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=4, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=4, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=5, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=5, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=6, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=6, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=7, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=7, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=8, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=8, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=9, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=9, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=10, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=10, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=11, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=11, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=12, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=12, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=13, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=13, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=14, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=14, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=15, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=15, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=16, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=16, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=17, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=17, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=18, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=18, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=19, d=14, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=28, b=28, c=19, d=14, last=21, SIZE=20, st=1] [L25] c++ VAL [a=28, b=28, c=20, d=14, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=30, b=30, c=20, d=15, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=30, b=30, c=20, d=15, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=30, b=30, c=0, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=0, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=1, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=1, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=2, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=2, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=3, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=3, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=4, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=4, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=5, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=5, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=6, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=6, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=7, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=7, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=8, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=8, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=9, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=9, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=10, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=10, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=11, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=11, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=12, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=12, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=13, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=13, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=14, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=14, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=15, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=15, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=16, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=16, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=17, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=17, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=18, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=18, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=19, d=15, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=30, b=30, c=19, d=15, last=21, SIZE=20, st=1] [L25] c++ VAL [a=30, b=30, c=20, d=15, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=32, b=32, c=20, d=16, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=32, b=32, c=20, d=16, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=32, b=32, c=0, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=0, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=1, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=1, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=2, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=2, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=3, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=3, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=4, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=4, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=5, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=5, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=6, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=6, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=7, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=7, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=8, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=8, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=9, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=9, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=10, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=10, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=11, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=11, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=12, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=12, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=13, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=13, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=14, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=14, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=15, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=15, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=16, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=16, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=17, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=17, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=18, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=18, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=19, d=16, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=32, b=32, c=19, d=16, last=21, SIZE=20, st=1] [L25] c++ VAL [a=32, b=32, c=20, d=16, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=34, b=34, c=20, d=17, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=34, b=34, c=20, d=17, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=34, b=34, c=0, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=0, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=1, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=1, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=2, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=2, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=3, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=3, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=4, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=4, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=5, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=5, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=6, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=6, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=7, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=7, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=8, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=8, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=9, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=9, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=10, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=10, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=11, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=11, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=12, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=12, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=13, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=13, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=14, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=14, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=15, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=15, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=16, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=16, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=17, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=17, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=18, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=18, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=19, d=17, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=34, b=34, c=19, d=17, last=21, SIZE=20, st=1] [L25] c++ VAL [a=34, b=34, c=20, d=17, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=36, b=36, c=20, d=18, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=36, b=36, c=20, d=18, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=36, b=36, c=0, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=0, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=1, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=1, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=2, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=2, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=3, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=3, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=4, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=4, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=5, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=5, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=6, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=6, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=7, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=7, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=8, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=8, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=9, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=9, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=10, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=10, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=11, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=11, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=12, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=12, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=13, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=13, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=14, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=14, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=15, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=15, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=16, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=16, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=17, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=17, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=18, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=18, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=19, d=18, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=36, b=36, c=19, d=18, last=21, SIZE=20, st=1] [L25] c++ VAL [a=36, b=36, c=20, d=18, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=38, b=38, c=20, d=19, last=21, SIZE=20, st=1] [L37] COND FALSE !(d == SIZE) VAL [a=38, b=38, c=20, d=19, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, last=21, SIZE=20] [L42] RET __VERIFIER_assert(a==b && c==SIZE) [L23] COND TRUE 1 [L24] st=1 [L25] c=0 VAL [a=38, b=38, c=0, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=0, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=1, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=1, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=2, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=2, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=3, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=3, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=4, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=4, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=5, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=5, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=6, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=6, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=7, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=7, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=8, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=8, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=9, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=9, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=10, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=10, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=11, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=11, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=12, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=12, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=13, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=13, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=14, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=14, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=15, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=15, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=16, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=16, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=17, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=17, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=18, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=18, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=19, d=19, last=21, SIZE=20, st=1] [L25] COND TRUE c=last) VAL [a=38, b=38, c=19, d=19, last=21, SIZE=20, st=1] [L25] c++ VAL [a=38, b=38, c=20, d=19, last=21, SIZE=20, st=1] [L25] COND FALSE !(c=SIZE [L35] d++ VAL [a=40, b=40, c=20, d=20, last=21, SIZE=20, st=1] [L37] COND TRUE d == SIZE [L38] a = 0 [L39] b = 1 VAL [a=0, b=1, c=20, d=20, last=21, SIZE=20, st=1] [L42] CALL __VERIFIER_assert(a==b && c==SIZE) [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, last=21, SIZE=20] [L12] reach_error() VAL [\old(cond)=0, cond=0, last=21, SIZE=20] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.7s, OverallIterations: 18, TraceHistogramMax: 400, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 19.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6237 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6237 mSDsluCounter, 1261 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 967 mSDsCounter, 266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3291 IncrementalHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 266 mSolverCounterUnsat, 294 mSDtfsCounter, 3291 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4279 GetRequests, 3602 SyntacticMatches, 28 SemanticMatches, 649 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32846 ImplicationChecksByTransitivity, 20.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2071occurred in iteration=17, InterpolantAutomatonStates: 443, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 3641 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 25.4s InterpolantComputationTime, 5500 NumberOfCodeBlocks, 5446 NumberOfCodeBlocksAsserted, 165 NumberOfCheckSat, 5950 ConstructedInterpolants, 0 QuantifiedInterpolants, 39445 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3398 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 36 InterpolantComputations, 8 PerfectInterpolantSequences, 42678/452362 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 17:00:39,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1497d53-bb41-418d-8dbc-5fdb0b4c4137/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE