./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 --- 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-5e519f3 [2022-11-03 02:00:52,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:00:52,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:00:52,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:00:52,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:00:52,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:00:52,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:00:52,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:00:52,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:00:52,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:00:52,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:00:52,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:00:52,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:00:52,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:00:52,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:00:52,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:00:52,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:00:52,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:00:52,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:00:52,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:00:52,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:00:52,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:00:52,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:00:52,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:00:52,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:00:52,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:00:52,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:00:52,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:00:52,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:00:52,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:00:52,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:00:52,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:00:52,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:00:52,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:00:52,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:00:52,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:00:52,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:00:52,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:00:52,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:00:52,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:00:52,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:00:52,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:00:52,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:00:52,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:00:52,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:00:52,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:00:52,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:00:52,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:00:52,633 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:00:52,633 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:00:52,634 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:00:52,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:00:52,635 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:00:52,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:00:52,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:00:52,636 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:00:52,636 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:00:52,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:00:52,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:00:52,637 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:00:52,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:00:52,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:00:52,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:00:52,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:00:52,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:00:52,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:00:52,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:00:52,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:00:52,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:00:52,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:00:52,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:00:52,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:00:52,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:00:52,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:00:52,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:52,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:00:52,641 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:00:52,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:00:52,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:00:52,642 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:00:52,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:00:52,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:00:52,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:00:52,644 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_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 [2022-11-03 02:00:52,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:00:52,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:00:52,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:00:52,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:00:52,971 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:00:52,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2022-11-03 02:00:53,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/data/e29b9b581/d6528fa8e15e4cc3a0a4f0488963fd44/FLAGe5ab7c8c6 [2022-11-03 02:00:53,641 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:00:53,642 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2022-11-03 02:00:53,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/data/e29b9b581/d6528fa8e15e4cc3a0a4f0488963fd44/FLAGe5ab7c8c6 [2022-11-03 02:00:53,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/data/e29b9b581/d6528fa8e15e4cc3a0a4f0488963fd44 [2022-11-03 02:00:53,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:00:53,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:00:53,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:53,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:00:53,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:00:53,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:53" (1/1) ... [2022-11-03 02:00:53,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d844d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:53, skipping insertion in model container [2022-11-03 02:00:53,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:53" (1/1) ... [2022-11-03 02:00:53,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:00:53,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:00:54,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2022-11-03 02:00:54,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:54,666 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:00:54,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2022-11-03 02:00:54,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:54,836 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:00:54,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54 WrapperNode [2022-11-03 02:00:54,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:54,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:54,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:00:54,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:00:54,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:54,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:54,960 INFO L138 Inliner]: procedures = 128, calls = 205, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 1008 [2022-11-03 02:00:54,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:54,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:00:54,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:00:54,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:00:54,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:54,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:54,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,030 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:00:55,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:00:55,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:00:55,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:00:55,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (1/1) ... [2022-11-03 02:00:55,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:55,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:55,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:00:55,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:00:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-03 02:00:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-03 02:00:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-03 02:00:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-03 02:00:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 02:00:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 02:00:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 02:00:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 02:00:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 02:00:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 02:00:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 02:00:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 02:00:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-03 02:00:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-03 02:00:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 02:00:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 02:00:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 02:00:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 02:00:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 02:00:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-03 02:00:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-03 02:00:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 02:00:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 02:00:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:00:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 02:00:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 02:00:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 02:00:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 02:00:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 02:00:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 02:00:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 02:00:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 02:00:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-03 02:00:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-03 02:00:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 02:00:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 02:00:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 02:00:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 02:00:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:00:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 02:00:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 02:00:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:00:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:00:55,457 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:00:55,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:00:56,266 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:00:56,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:00:56,815 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:00:56,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:56 BoogieIcfgContainer [2022-11-03 02:00:56,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:00:56,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:00:56,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:00:56,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:00:56,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:53" (1/3) ... [2022-11-03 02:00:56,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f569d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:56, skipping insertion in model container [2022-11-03 02:00:56,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:54" (2/3) ... [2022-11-03 02:00:56,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f569d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:56, skipping insertion in model container [2022-11-03 02:00:56,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:56" (3/3) ... [2022-11-03 02:00:56,829 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2022-11-03 02:00:56,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:00:56,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:00:56,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:00:56,938 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37d369f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:00:56,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:00:56,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 100 states have (on average 1.34) internal successors, (134), 104 states have internal predecessors, (134), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-03 02:00:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 02:00:56,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:56,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:56,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:56,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1548518189, now seen corresponding path program 1 times [2022-11-03 02:00:56,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:56,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461716127] [2022-11-03 02:00:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:56,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:00:57,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:57,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461716127] [2022-11-03 02:00:57,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461716127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:57,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:57,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:00:57,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497076520] [2022-11-03 02:00:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:57,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:00:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:57,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:00:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:00:57,555 INFO L87 Difference]: Start difference. First operand has 171 states, 100 states have (on average 1.34) internal successors, (134), 104 states have internal predecessors, (134), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:00:57,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:57,755 INFO L93 Difference]: Finished difference Result 259 states and 346 transitions. [2022-11-03 02:00:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:00:57,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-03 02:00:57,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:57,773 INFO L225 Difference]: With dead ends: 259 [2022-11-03 02:00:57,773 INFO L226 Difference]: Without dead ends: 168 [2022-11-03 02:00:57,778 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 [2022-11-03 02:00:57,782 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:57,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:00:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-03 02:00:57,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-03 02:00:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 101 states have internal predecessors, (128), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 02:00:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 227 transitions. [2022-11-03 02:00:57,839 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 227 transitions. Word has length 72 [2022-11-03 02:00:57,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:57,840 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 227 transitions. [2022-11-03 02:00:57,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:00:57,841 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 227 transitions. [2022-11-03 02:00:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 02:00:57,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:57,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:00:57,846 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:57,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1352108211, now seen corresponding path program 1 times [2022-11-03 02:00:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:57,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89186882] [2022-11-03 02:00:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:57,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:00:58,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:58,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89186882] [2022-11-03 02:00:58,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89186882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:58,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:58,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:00:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609050231] [2022-11-03 02:00:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:58,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:00:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:00:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:00:58,183 INFO L87 Difference]: Start difference. First operand 168 states and 227 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:00:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:58,300 INFO L93 Difference]: Finished difference Result 255 states and 334 transitions. [2022-11-03 02:00:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:00:58,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-11-03 02:00:58,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:58,303 INFO L225 Difference]: With dead ends: 255 [2022-11-03 02:00:58,303 INFO L226 Difference]: Without dead ends: 170 [2022-11-03 02:00:58,304 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 [2022-11-03 02:00:58,306 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:58,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:00:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-03 02:00:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-03 02:00:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 100 states have (on average 1.3) internal successors, (130), 103 states have internal predecessors, (130), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 02:00:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2022-11-03 02:00:58,324 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 73 [2022-11-03 02:00:58,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:58,325 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2022-11-03 02:00:58,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:00:58,325 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2022-11-03 02:00:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 02:00:58,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:58,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:58,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:00:58,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:58,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:58,330 INFO L85 PathProgramCache]: Analyzing trace with hash -191960255, now seen corresponding path program 1 times [2022-11-03 02:00:58,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:58,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155293916] [2022-11-03 02:00:58,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:58,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:00:58,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:58,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155293916] [2022-11-03 02:00:58,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155293916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:58,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:58,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:00:58,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104734589] [2022-11-03 02:00:58,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:58,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:00:58,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:00:58,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:00:58,460 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:00:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:58,591 INFO L93 Difference]: Finished difference Result 370 states and 517 transitions. [2022-11-03 02:00:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:00:58,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 78 [2022-11-03 02:00:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:58,594 INFO L225 Difference]: With dead ends: 370 [2022-11-03 02:00:58,595 INFO L226 Difference]: Without dead ends: 218 [2022-11-03 02:00:58,596 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 [2022-11-03 02:00:58,598 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 57 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:58,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 399 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:00:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-03 02:00:58,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2022-11-03 02:00:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 135 states have internal predecessors, (183), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-03 02:00:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 304 transitions. [2022-11-03 02:00:58,626 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 304 transitions. Word has length 78 [2022-11-03 02:00:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:58,626 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 304 transitions. [2022-11-03 02:00:58,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:00:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 304 transitions. [2022-11-03 02:00:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 02:00:58,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:58,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:58,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:00:58,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash -729237157, now seen corresponding path program 1 times [2022-11-03 02:00:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:58,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584180954] [2022-11-03 02:00:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:00:58,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:58,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584180954] [2022-11-03 02:00:58,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584180954] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:00:58,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695537108] [2022-11-03 02:00:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:58,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:00:58,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:58,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:00:58,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:00:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:59,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:00:59,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:00:59,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:00:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:00:59,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695537108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:00:59,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2126916343] [2022-11-03 02:00:59,563 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-03 02:00:59,563 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:00:59,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:00:59,573 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:00:59,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:01:34,557 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 02:01:34,955 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:01:35,256 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:01:47,968 WARN L234 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:01:53,602 WARN L234 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:21,747 WARN L234 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 498 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:02:43,889 WARN L234 SmtUtils]: Spent 14.94s on a formula simplification. DAG size of input: 589 DAG size of output: 344 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:08,374 WARN L234 SmtUtils]: Spent 22.93s on a formula simplification. DAG size of input: 591 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:32,739 WARN L234 SmtUtils]: Spent 22.71s on a formula simplification. DAG size of input: 590 DAG size of output: 464 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:38,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2126916343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:03:38,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:03:38,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-03 02:03:38,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517300157] [2022-11-03 02:03:38,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:03:38,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 02:03:38,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:03:38,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 02:03:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:03:38,874 INFO L87 Difference]: Start difference. First operand 213 states and 304 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-03 02:03:51,765 WARN L234 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 575 DAG size of output: 392 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:01,678 WARN L234 SmtUtils]: Spent 9.65s on a formula simplification. DAG size of input: 582 DAG size of output: 437 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:11,778 WARN L234 SmtUtils]: Spent 9.75s on a formula simplification. DAG size of input: 595 DAG size of output: 433 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:34,016 WARN L234 SmtUtils]: Spent 19.02s on a formula simplification. DAG size of input: 591 DAG size of output: 460 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:43,296 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-11-03 02:04:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:04:43,297 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 79 [2022-11-03 02:04:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:43,303 INFO L225 Difference]: With dead ends: 509 [2022-11-03 02:04:43,303 INFO L226 Difference]: Without dead ends: 314 [2022-11-03 02:04:43,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 176.5s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2022-11-03 02:04:43,305 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 227 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:43,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 3020 Invalid, 1987 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [28 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-11-03 02:04:43,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-03 02:04:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 241. [2022-11-03 02:04:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 159 states have (on average 1.3962264150943395) internal successors, (222), 162 states have internal predecessors, (222), 61 states have call successors, (61), 20 states have call predecessors, (61), 20 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-03 02:04:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 343 transitions. [2022-11-03 02:04:43,507 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 343 transitions. Word has length 79 [2022-11-03 02:04:43,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:43,510 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 343 transitions. [2022-11-03 02:04:43,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-03 02:04:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 343 transitions. [2022-11-03 02:04:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 02:04:43,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:43,515 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:43,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:04:43,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:43,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1454913617, now seen corresponding path program 1 times [2022-11-03 02:04:43,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:43,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088581606] [2022-11-03 02:04:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:43,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:43,909 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:04:43,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:43,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088581606] [2022-11-03 02:04:43,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088581606] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:04:43,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846033640] [2022-11-03 02:04:43,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:43,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:04:43,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:04:43,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:04:43,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:04:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:44,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:04:44,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:04:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:04:44,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:04:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:04:44,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846033640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:04:44,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1272251067] [2022-11-03 02:04:44,369 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-03 02:04:44,369 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:04:44,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:04:44,371 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:04:44,371 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:05:24,932 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 02:05:25,210 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 02:05:25,562 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2022-11-03 02:05:27,102 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-11-03 02:05:33,650 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 449 for LOIs [2022-11-03 02:05:34,240 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-11-03 02:05:34,278 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-03 02:05:38,868 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:06:22,893 WARN L234 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 498 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:47,347 WARN L234 SmtUtils]: Spent 16.99s on a formula simplification. DAG size of input: 587 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:07:06,255 WARN L234 SmtUtils]: Spent 17.19s on a formula simplification. DAG size of input: 589 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:07:37,317 WARN L234 SmtUtils]: Spent 7.86s on a formula simplification. DAG size of input: 472 DAG size of output: 261 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:07:46,304 WARN L234 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 494 DAG size of output: 265 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:13,632 WARN L234 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 449 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:28,944 WARN L234 SmtUtils]: Spent 13.12s on a formula simplification. DAG size of input: 468 DAG size of output: 347 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:36,000 WARN L234 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 476 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:54,679 WARN L234 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 556 DAG size of output: 434 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:08,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1272251067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:08,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:09:08,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [4, 4, 4] total 53 [2022-11-03 02:09:08,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158187784] [2022-11-03 02:09:08,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:08,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-03 02:09:08,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-03 02:09:08,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2613, Unknown=0, NotChecked=0, Total=2756 [2022-11-03 02:09:08,991 INFO L87 Difference]: Start difference. First operand 241 states and 343 transitions. Second operand has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-03 02:09:17,721 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 333 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:24,148 WARN L234 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 335 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:31,566 WARN L234 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 333 DAG size of output: 329 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:09:39,896 WARN L234 SmtUtils]: Spent 7.53s on a formula simplification. DAG size of input: 345 DAG size of output: 327 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:13,925 WARN L234 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 342 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:10:44,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:44,759 INFO L93 Difference]: Finished difference Result 593 states and 893 transitions. [2022-11-03 02:10:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-03 02:10:44,760 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 85 [2022-11-03 02:10:44,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:44,763 INFO L225 Difference]: With dead ends: 593 [2022-11-03 02:10:44,763 INFO L226 Difference]: Without dead ends: 398 [2022-11-03 02:10:44,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 284.6s TimeCoverageRelationStatistics Valid=284, Invalid=4828, Unknown=0, NotChecked=0, Total=5112 [2022-11-03 02:10:44,766 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 302 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 5243 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 4696 SdHoareTripleChecker+Invalid, 5305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 5243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:44,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 4696 Invalid, 5305 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 5243 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2022-11-03 02:10:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-03 02:10:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 314. [2022-11-03 02:10:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 218 states have (on average 1.4174311926605505) internal successors, (309), 223 states have internal predecessors, (309), 70 states have call successors, (70), 26 states have call predecessors, (70), 25 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-03 02:10:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 448 transitions. [2022-11-03 02:10:45,022 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 448 transitions. Word has length 85 [2022-11-03 02:10:45,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:45,023 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 448 transitions. [2022-11-03 02:10:45,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-03 02:10:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 448 transitions. [2022-11-03 02:10:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 02:10:45,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:45,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:45,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:10:45,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:10:45,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash 802349818, now seen corresponding path program 1 times [2022-11-03 02:10:45,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:45,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802076540] [2022-11-03 02:10:45,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:45,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:10:45,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:45,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802076540] [2022-11-03 02:10:45,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802076540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:10:45,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600114744] [2022-11-03 02:10:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:45,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:10:45,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:10:45,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:10:45,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92eafc6c-3b22-4b8d-babe-74e77f123515/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:10:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:45,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:10:45,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:10:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:10:45,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:10:45,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:10:45,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600114744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:10:45,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [915844485] [2022-11-03 02:10:45,903 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2022-11-03 02:10:45,903 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:10:45,904 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:10:45,905 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:10:45,905 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:11:56,288 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 02:11:56,585 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-11-03 02:11:56,863 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-11-03 02:11:57,136 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 226 for LOIs [2022-11-03 02:11:58,339 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-11-03 02:11:58,397 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 02:11:58,673 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 226 for LOIs [2022-11-03 02:12:12,125 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 393 for LOIs [2022-11-03 02:12:12,573 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-11-03 02:12:12,601 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 217 for LOIs [2022-11-03 02:12:12,718 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:12:25,413 WARN L234 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:12:31,416 WARN L234 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:12:59,692 WARN L234 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 498 DAG size of output: 376 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:11,643 WARN L234 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 521 DAG size of output: 337 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:30,711 WARN L234 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 528 DAG size of output: 314 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:13:37,914 WARN L234 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 521 DAG size of output: 365 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)