./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product19.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_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/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_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/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_efec125f-c827-458c-a27b-9ed65724f5b5/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 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 --- 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 03:53:33,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:53:33,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:53:33,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:53:33,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:53:33,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:53:33,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:53:33,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:53:33,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:53:33,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:53:33,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:53:33,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:53:33,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:53:33,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:53:33,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:53:33,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:53:33,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:53:33,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:53:33,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:53:33,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:53:33,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:53:33,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:53:33,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:53:33,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:53:33,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:53:33,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:53:33,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:53:33,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:53:33,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:53:33,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:53:33,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:53:33,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:53:33,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:53:33,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:53:33,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:53:33,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:53:33,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:53:33,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:53:33,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:53:33,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:53:33,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:53:33,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:53:33,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:53:33,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:53:33,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:53:33,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:53:33,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:53:33,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:53:33,604 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:53:33,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:53:33,604 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:53:33,604 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:53:33,605 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:53:33,606 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:53:33,606 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:53:33,606 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:53:33,606 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:53:33,606 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:53:33,606 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:53:33,607 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:53:33,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:53:33,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:53:33,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:53:33,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:53:33,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:53:33,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:53:33,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:53:33,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:53:33,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:53:33,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:53:33,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:53:33,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:53:33,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:53:33,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:53:33,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:53:33,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:53:33,610 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:53:33,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:53:33,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:53:33,611 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:53:33,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:53:33,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:53:33,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:53:33,612 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_efec125f-c827-458c-a27b-9ed65724f5b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 [2022-11-03 03:53:33,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:53:33,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:53:33,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:53:33,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:53:33,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:53:33,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2022-11-03 03:53:34,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/data/025fff7b3/abe1c77e14084044861bd5bcc7712467/FLAG0e8259c4f [2022-11-03 03:53:34,623 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:53:34,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2022-11-03 03:53:34,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/data/025fff7b3/abe1c77e14084044861bd5bcc7712467/FLAG0e8259c4f [2022-11-03 03:53:34,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/data/025fff7b3/abe1c77e14084044861bd5bcc7712467 [2022-11-03 03:53:34,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:53:34,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:53:34,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:53:34,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:53:34,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:53:34,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:34" (1/1) ... [2022-11-03 03:53:34,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3172f350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:34, skipping insertion in model container [2022-11-03 03:53:34,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:34" (1/1) ... [2022-11-03 03:53:34,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:53:35,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:53:35,504 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_efec125f-c827-458c-a27b-9ed65724f5b5/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2022-11-03 03:53:35,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:53:35,651 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:53:35,719 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_efec125f-c827-458c-a27b-9ed65724f5b5/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2022-11-03 03:53:35,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:53:35,771 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:53:35,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35 WrapperNode [2022-11-03 03:53:35,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:53:35,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:53:35,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:53:35,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:53:35,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,867 INFO L138 Inliner]: procedures = 127, calls = 198, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 992 [2022-11-03 03:53:35,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:53:35,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:53:35,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:53:35,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:53:35,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,944 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:53:35,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:53:35,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:53:35,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:53:35,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2022-11-03 03:53:35,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:53:36,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:53:36,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:53:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:53:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:53:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:53:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:53:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:53:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:53:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:53:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:53:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:53:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:53:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:53:36,069 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:53:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:53:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:53:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:53:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:53:36,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:53:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:53:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:53:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:53:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:53:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:53:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:53:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:53:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:53:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:53:36,072 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:53:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:53:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:53:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:53:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:53:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:53:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:53:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:53:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:53:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:53:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:53:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:53:36,378 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:53:36,380 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:53:37,167 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:53:37,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:53:37,595 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:53:37,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:37 BoogieIcfgContainer [2022-11-03 03:53:37,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:53:37,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:53:37,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:53:37,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:53:37,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:53:34" (1/3) ... [2022-11-03 03:53:37,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788925b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:37, skipping insertion in model container [2022-11-03 03:53:37,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (2/3) ... [2022-11-03 03:53:37,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788925b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:37, skipping insertion in model container [2022-11-03 03:53:37,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:37" (3/3) ... [2022-11-03 03:53:37,607 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2022-11-03 03:53:37,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:53:37,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:53:37,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:53:37,753 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;@5fdd74fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:53:37,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:53:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-03 03:53:37,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 03:53:37,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:37,779 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] [2022-11-03 03:53:37,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 362898652, now seen corresponding path program 1 times [2022-11-03 03:53:37,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:37,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951817059] [2022-11-03 03:53:37,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:37,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:38,231 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 03:53:38,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:38,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951817059] [2022-11-03 03:53:38,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951817059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:38,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:38,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:53:38,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216248697] [2022-11-03 03:53:38,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:38,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:53:38,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:53:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:53:38,283 INFO L87 Difference]: Start difference. First operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:53:38,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:38,429 INFO L93 Difference]: Finished difference Result 217 states and 290 transitions. [2022-11-03 03:53:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:53:38,432 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-11-03 03:53:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:38,445 INFO L225 Difference]: With dead ends: 217 [2022-11-03 03:53:38,445 INFO L226 Difference]: Without dead ends: 147 [2022-11-03 03:53:38,451 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 03:53:38,456 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:38,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:53:38,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-11-03 03:53:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-11-03 03:53:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 89 states have internal predecessors, (116), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-03 03:53:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 199 transitions. [2022-11-03 03:53:38,547 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 199 transitions. Word has length 64 [2022-11-03 03:53:38,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:38,549 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 199 transitions. [2022-11-03 03:53:38,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:53:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 199 transitions. [2022-11-03 03:53:38,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-03 03:53:38,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:38,561 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] [2022-11-03 03:53:38,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:53:38,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:38,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2115615507, now seen corresponding path program 1 times [2022-11-03 03:53:38,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:38,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878333376] [2022-11-03 03:53:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:38,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:38,898 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 03:53:38,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:38,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878333376] [2022-11-03 03:53:38,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878333376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:38,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:38,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:38,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155946714] [2022-11-03 03:53:38,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:38,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:38,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:38,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:38,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:38,904 INFO L87 Difference]: Start difference. First operand 147 states and 199 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:53:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:39,061 INFO L93 Difference]: Finished difference Result 213 states and 278 transitions. [2022-11-03 03:53:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:39,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-03 03:53:39,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:39,065 INFO L225 Difference]: With dead ends: 213 [2022-11-03 03:53:39,067 INFO L226 Difference]: Without dead ends: 149 [2022-11-03 03:53:39,068 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 03:53:39,070 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:39,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:53:39,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-03 03:53:39,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-03 03:53:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-03 03:53:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2022-11-03 03:53:39,087 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 65 [2022-11-03 03:53:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:39,087 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2022-11-03 03:53:39,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:53:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2022-11-03 03:53:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-03 03:53:39,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:39,090 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] [2022-11-03 03:53:39,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:53:39,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash 173930239, now seen corresponding path program 1 times [2022-11-03 03:53:39,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:39,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253828528] [2022-11-03 03:53:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:39,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:39,249 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 03:53:39,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:39,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253828528] [2022-11-03 03:53:39,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253828528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:53:39,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:53:39,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:53:39,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504506741] [2022-11-03 03:53:39,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:39,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:39,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:39,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:39,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:53:39,252 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:53:39,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:39,346 INFO L93 Difference]: Finished difference Result 328 states and 461 transitions. [2022-11-03 03:53:39,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:39,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-03 03:53:39,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:39,349 INFO L225 Difference]: With dead ends: 328 [2022-11-03 03:53:39,350 INFO L226 Difference]: Without dead ends: 197 [2022-11-03 03:53:39,351 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 03:53:39,352 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 57 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:39,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 355 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:53:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-03 03:53:39,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2022-11-03 03:53:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 122 states have (on average 1.401639344262295) internal successors, (171), 123 states have internal predecessors, (171), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 03:53:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 276 transitions. [2022-11-03 03:53:39,379 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 276 transitions. Word has length 70 [2022-11-03 03:53:39,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:39,381 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 276 transitions. [2022-11-03 03:53:39,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:53:39,382 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 276 transitions. [2022-11-03 03:53:39,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 03:53:39,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:39,386 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] [2022-11-03 03:53:39,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:53:39,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:39,390 INFO L85 PathProgramCache]: Analyzing trace with hash -190186898, now seen corresponding path program 1 times [2022-11-03 03:53:39,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:39,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965666192] [2022-11-03 03:53:39,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:39,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:39,647 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 03:53:39,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:39,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965666192] [2022-11-03 03:53:39,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965666192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:53:39,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934551243] [2022-11-03 03:53:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:39,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:53:39,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:53:39,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:53:39,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:53:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:39,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:53:39,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:53:40,035 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 03:53:40,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:53:40,108 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 03:53:40,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934551243] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:53:40,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1485301210] [2022-11-03 03:53:40,130 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-03 03:53:40,130 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:53:40,134 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:53:40,139 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:53:40,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:54:16,127 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:54:16,457 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:54:16,779 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 472 for LOIs [2022-11-03 03:54:53,490 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 470 for LOIs [2022-11-03 03:55:34,383 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 248 for LOIs [2022-11-03 03:55:34,414 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2022-11-03 03:55:34,454 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-11-03 03:55:34,844 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2022-11-03 03:55:34,966 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:55:47,620 WARN L234 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:55:53,478 WARN L234 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:18,085 WARN L234 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 486 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:30,932 WARN L234 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 508 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:37,506 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 559 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:56:44,128 WARN L234 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 561 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:57:05,230 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 560 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:57:21,906 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 526 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:57:38,110 WARN L234 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 522 DAG size of output: 310 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:57:44,642 WARN L234 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 535 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:58:06,058 WARN L234 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 570 DAG size of output: 396 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:58:17,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1485301210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:17,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:58:17,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [4, 4, 4] total 48 [2022-11-03 03:58:17,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725100133] [2022-11-03 03:58:17,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:17,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-03 03:58:17,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:17,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-03 03:58:17,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2117, Unknown=0, NotChecked=0, Total=2256 [2022-11-03 03:58:17,793 INFO L87 Difference]: Start difference. First operand 192 states and 276 transitions. Second operand has 43 states, 28 states have (on average 1.25) internal successors, (35), 26 states have internal predecessors, (35), 14 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2022-11-03 03:58:36,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:36,702 INFO L93 Difference]: Finished difference Result 500 states and 766 transitions. [2022-11-03 03:58:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-03 03:58:36,703 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 28 states have (on average 1.25) internal successors, (35), 26 states have internal predecessors, (35), 14 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 71 [2022-11-03 03:58:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:36,707 INFO L225 Difference]: With dead ends: 500 [2022-11-03 03:58:36,707 INFO L226 Difference]: Without dead ends: 326 [2022-11-03 03:58:36,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 166.3s TimeCoverageRelationStatistics Valid=147, Invalid=2205, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 03:58:36,711 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 213 mSDsluCounter, 3750 mSDsCounter, 0 mSdLazyCounter, 4280 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 4313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:36,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 3876 Invalid, 4313 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 4280 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-11-03 03:58:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-11-03 03:58:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 274. [2022-11-03 03:58:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 189 states have (on average 1.4550264550264551) internal successors, (275), 191 states have internal predecessors, (275), 62 states have call successors, (62), 23 states have call predecessors, (62), 22 states have return successors, (62), 59 states have call predecessors, (62), 61 states have call successors, (62) [2022-11-03 03:58:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 399 transitions. [2022-11-03 03:58:36,894 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 399 transitions. Word has length 71 [2022-11-03 03:58:36,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:36,895 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 399 transitions. [2022-11-03 03:58:36,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 28 states have (on average 1.25) internal successors, (35), 26 states have internal predecessors, (35), 14 states have call successors, (15), 8 states have call predecessors, (15), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2022-11-03 03:58:36,896 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 399 transitions. [2022-11-03 03:58:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 03:58:36,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:36,898 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] [2022-11-03 03:58:36,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:58:37,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:58:37,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:37,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1306969907, now seen corresponding path program 1 times [2022-11-03 03:58:37,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:37,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393555091] [2022-11-03 03:58:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:37,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:58:37,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:37,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393555091] [2022-11-03 03:58:37,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393555091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:37,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:37,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:58:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684614866] [2022-11-03 03:58:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:58:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:37,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:58:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:37,215 INFO L87 Difference]: Start difference. First operand 274 states and 399 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 03:58:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:37,567 INFO L93 Difference]: Finished difference Result 662 states and 1004 transitions. [2022-11-03 03:58:37,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:58:37,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 76 [2022-11-03 03:58:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:37,571 INFO L225 Difference]: With dead ends: 662 [2022-11-03 03:58:37,571 INFO L226 Difference]: Without dead ends: 414 [2022-11-03 03:58:37,572 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 03:58:37,573 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 55 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:37,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 361 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:58:37,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-03 03:58:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 407. [2022-11-03 03:58:37,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 297 states have (on average 1.5218855218855218) internal successors, (452), 299 states have internal predecessors, (452), 87 states have call successors, (87), 23 states have call predecessors, (87), 22 states have return successors, (87), 84 states have call predecessors, (87), 86 states have call successors, (87) [2022-11-03 03:58:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 626 transitions. [2022-11-03 03:58:37,773 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 626 transitions. Word has length 76 [2022-11-03 03:58:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:37,773 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 626 transitions. [2022-11-03 03:58:37,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 03:58:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 626 transitions. [2022-11-03 03:58:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 03:58:37,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:37,776 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] [2022-11-03 03:58:37,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:58:37,777 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:37,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1463758427, now seen corresponding path program 1 times [2022-11-03 03:58:37,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:37,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523007862] [2022-11-03 03:58:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:37,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:37,902 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 03:58:37,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:37,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523007862] [2022-11-03 03:58:37,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523007862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:58:37,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650519285] [2022-11-03 03:58:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:37,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:58:37,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:58:37,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:58:37,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:58:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:38,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:58:38,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:58:38,243 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 03:58:38,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:58:38,339 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 03:58:38,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650519285] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:58:38,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [210489235] [2022-11-03 03:58:38,342 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-03 03:58:38,342 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:58:38,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:58:38,343 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:58:38,344 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:59:08,724 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:59:09,033 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:59:09,347 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 472 for LOIs [2022-11-03 03:59:44,722 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 470 for LOIs [2022-11-03 04:00:32,470 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 248 for LOIs [2022-11-03 04:00:32,507 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 248 for LOIs [2022-11-03 04:00:32,550 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-11-03 04:00:32,877 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 446 for LOIs [2022-11-03 04:00:33,679 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 248 for LOIs [2022-11-03 04:00:33,725 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:01:13,238 WARN L234 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 486 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:01:18,856 WARN L234 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:01:27,161 WARN L234 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 508 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:01:33,842 WARN L234 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 559 DAG size of output: 352 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:01:40,688 WARN L234 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 561 DAG size of output: 354 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:02,645 WARN L234 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 560 DAG size of output: 353 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:28,454 WARN L234 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 526 DAG size of output: 319 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:45,069 WARN L234 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 522 DAG size of output: 310 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:02:51,750 WARN L234 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 535 DAG size of output: 330 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:14,362 WARN L234 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 570 DAG size of output: 396 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:40,394 WARN L234 SmtUtils]: Spent 9.20s on a formula simplification. DAG size of input: 612 DAG size of output: 395 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:47,743 WARN L234 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 612 DAG size of output: 390 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:03:55,580 WARN L234 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 610 DAG size of output: 396 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:04,431 WARN L234 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 667 DAG size of output: 433 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:04,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [210489235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:04,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:04:04,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-11-03 04:04:04,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813574] [2022-11-03 04:04:04,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:04,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-03 04:04:04,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:04,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-03 04:04:04,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2691, Unknown=0, NotChecked=0, Total=2862 [2022-11-03 04:04:04,442 INFO L87 Difference]: Start difference. First operand 407 states and 626 transitions. Second operand has 49 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (16), 9 states have call predecessors, (16), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-03 04:04:25,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:25,993 INFO L93 Difference]: Finished difference Result 513 states and 784 transitions. [2022-11-03 04:04:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-03 04:04:25,994 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (16), 9 states have call predecessors, (16), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 76 [2022-11-03 04:04:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:25,998 INFO L225 Difference]: With dead ends: 513 [2022-11-03 04:04:25,999 INFO L226 Difference]: Without dead ends: 456 [2022-11-03 04:04:26,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 214.5s TimeCoverageRelationStatistics Valid=179, Invalid=2791, Unknown=0, NotChecked=0, Total=2970 [2022-11-03 04:04:26,001 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 203 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 4309 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 4324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:26,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 3579 Invalid, 4324 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 4309 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2022-11-03 04:04:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-03 04:04:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 411. [2022-11-03 04:04:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 300 states have (on average 1.5166666666666666) internal successors, (455), 302 states have internal predecessors, (455), 87 states have call successors, (87), 24 states have call predecessors, (87), 23 states have return successors, (87), 84 states have call predecessors, (87), 86 states have call successors, (87) [2022-11-03 04:04:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 629 transitions. [2022-11-03 04:04:26,215 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 629 transitions. Word has length 76 [2022-11-03 04:04:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:26,215 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 629 transitions. [2022-11-03 04:04:26,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (16), 9 states have call predecessors, (16), 7 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-03 04:04:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 629 transitions. [2022-11-03 04:04:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-03 04:04:26,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:26,219 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] [2022-11-03 04:04:26,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:26,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:26,431 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1762686401, now seen corresponding path program 1 times [2022-11-03 04:04:26,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:26,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83646804] [2022-11-03 04:04:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:26,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:26,629 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 04:04:26,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:26,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83646804] [2022-11-03 04:04:26,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83646804] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:26,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338734377] [2022-11-03 04:04:26,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:26,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:26,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:26,632 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:26,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efec125f-c827-458c-a27b-9ed65724f5b5/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:04:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:26,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:04:26,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:27,019 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 04:04:27,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:27,120 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 04:04:27,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338734377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:04:27,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870396783] [2022-11-03 04:04:27,135 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-03 04:04:27,135 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:04:27,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:04:27,138 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:04:27,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:05:05,783 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 04:05:06,150 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 04:05:06,579 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:05:49,405 WARN L234 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 486 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:55,173 WARN L234 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:06:03,790 WARN L234 SmtUtils]: Spent 7.14s on a formula simplification. DAG size of input: 508 DAG size of output: 332 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:06:22,067 WARN L234 SmtUtils]: Spent 17.93s on a formula simplification. DAG size of input: 579 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)