./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 1c5af94617941f44648ac9498189d5e73562b4cbf6ae0ea00b10262137b50bb0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:14,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:14,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:19:14,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:14,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:14,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:14,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:14,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:14,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:14,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:14,613 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:14,614 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:14,615 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:14,617 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:19:14,618 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:14,618 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:14,619 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:19:14,619 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:19:14,619 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:14,620 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:19:14,620 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:19:14,621 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:19:14,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:14,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:14,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:14,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:19:14,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:14,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:14,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:14,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:14,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:14,628 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:14,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:14,628 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:14,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:14,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:14,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:14,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:14,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:14,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:14,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:14,631 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:19:14,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:19:14,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:14,632 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:14,633 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:14,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:14,633 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5af94617941f44648ac9498189d5e73562b4cbf6ae0ea00b10262137b50bb0 [2023-11-24 23:19:14,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:14,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:14,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:14,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:14,979 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:14,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c [2023-11-24 23:19:18,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:18,589 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:18,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c [2023-11-24 23:19:18,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/data/27fb075a5/ef94f1cd036145518eea2d3c3e913ddd/FLAGc208e5824 [2023-11-24 23:19:18,635 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/data/27fb075a5/ef94f1cd036145518eea2d3c3e913ddd [2023-11-24 23:19:18,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:18,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:18,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:18,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:18,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:18,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:18" (1/1) ... [2023-11-24 23:19:18,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c92eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:18, skipping insertion in model container [2023-11-24 23:19:18,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:18" (1/1) ... [2023-11-24 23:19:18,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:19,484 WARN L240 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_9e357841-70ba-4228-9151-709f6861727e/sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c[48047,48060] [2023-11-24 23:19:19,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:19,627 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:19,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-24 23:19:19,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [168] [2023-11-24 23:19:19,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [754] [2023-11-24 23:19:19,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1126] [2023-11-24 23:19:19,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1492] [2023-11-24 23:19:19,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1698] [2023-11-24 23:19:19,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2095] [2023-11-24 23:19:19,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2112] [2023-11-24 23:19:19,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2378] [2023-11-24 23:19:19,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [2387] [2023-11-24 23:19:19,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [3447] [2023-11-24 23:19:19,722 WARN L240 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_9e357841-70ba-4228-9151-709f6861727e/sv-benchmarks/c/product-lines/email_spec11_productSimulator.cil.c[48047,48060] [2023-11-24 23:19:19,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:19,798 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:19:19,807 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:19,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19 WrapperNode [2023-11-24 23:19:19,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:19,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:19,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:19,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:19,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:19,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,013 INFO L138 Inliner]: procedures = 151, calls = 282, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1334 [2023-11-24 23:19:20,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:20,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:20,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:20,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:20,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:20,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:20,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:20,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:20,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (1/1) ... [2023-11-24 23:19:20,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:20,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:20,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:20,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-24 23:19:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-24 23:19:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2023-11-24 23:19:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2023-11-24 23:19:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2023-11-24 23:19:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2023-11-24 23:19:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-24 23:19:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-24 23:19:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-24 23:19:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-24 23:19:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-24 23:19:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-24 23:19:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-24 23:19:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-24 23:19:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2023-11-24 23:19:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2023-11-24 23:19:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-24 23:19:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-24 23:19:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2023-11-24 23:19:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2023-11-24 23:19:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-24 23:19:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-24 23:19:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-24 23:19:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-24 23:19:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-24 23:19:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-24 23:19:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2023-11-24 23:19:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2023-11-24 23:19:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2023-11-24 23:19:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2023-11-24 23:19:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-24 23:19:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-24 23:19:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-24 23:19:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-24 23:19:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-24 23:19:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-24 23:19:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-24 23:19:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2023-11-24 23:19:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2023-11-24 23:19:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-24 23:19:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-24 23:19:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-24 23:19:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-24 23:19:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-24 23:19:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-24 23:19:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2023-11-24 23:19:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2023-11-24 23:19:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-24 23:19:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-24 23:19:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-24 23:19:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-24 23:19:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2023-11-24 23:19:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2023-11-24 23:19:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2023-11-24 23:19:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2023-11-24 23:19:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2023-11-24 23:19:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2023-11-24 23:19:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-24 23:19:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-24 23:19:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-24 23:19:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-24 23:19:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-24 23:19:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-24 23:19:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-24 23:19:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-24 23:19:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-24 23:19:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-24 23:19:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-24 23:19:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-24 23:19:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-24 23:19:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-24 23:19:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2023-11-24 23:19:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2023-11-24 23:19:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2023-11-24 23:19:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2023-11-24 23:19:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-24 23:19:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-24 23:19:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-24 23:19:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-24 23:19:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:19:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-24 23:19:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-24 23:19:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2023-11-24 23:19:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2023-11-24 23:19:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-11-24 23:19:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-11-24 23:19:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-24 23:19:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-24 23:19:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:20,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:20,701 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:20,705 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:22,048 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:22,935 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:22,935 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:19:22,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:22 BoogieIcfgContainer [2023-11-24 23:19:22,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:22,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:22,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:22,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:22,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:18" (1/3) ... [2023-11-24 23:19:22,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c36455c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:22, skipping insertion in model container [2023-11-24 23:19:22,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:19" (2/3) ... [2023-11-24 23:19:22,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c36455c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:22, skipping insertion in model container [2023-11-24 23:19:22,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:22" (3/3) ... [2023-11-24 23:19:22,951 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_productSimulator.cil.c [2023-11-24 23:19:22,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:22,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:23,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:23,066 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=LoopHeads, 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;@73e4b64f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:23,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 223 states have (on average 1.3318385650224216) internal successors, (297), 243 states have internal predecessors, (297), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-11-24 23:19:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-24 23:19:23,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:23,122 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:23,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:23,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:23,133 INFO L85 PathProgramCache]: Analyzing trace with hash 484191683, now seen corresponding path program 1 times [2023-11-24 23:19:23,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723332115] [2023-11-24 23:19:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:19:24,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:24,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723332115] [2023-11-24 23:19:24,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723332115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:24,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:24,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:19:24,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706479768] [2023-11-24 23:19:24,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:24,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:19:24,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:24,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:19:24,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:19:24,077 INFO L87 Difference]: Start difference. First operand has 377 states, 223 states have (on average 1.3318385650224216) internal successors, (297), 243 states have internal predecessors, (297), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:19:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:24,434 INFO L93 Difference]: Finished difference Result 723 states and 997 transitions. [2023-11-24 23:19:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:19:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 121 [2023-11-24 23:19:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:24,452 INFO L225 Difference]: With dead ends: 723 [2023-11-24 23:19:24,452 INFO L226 Difference]: Without dead ends: 374 [2023-11-24 23:19:24,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:19:24,463 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:24,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1370 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:19:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-24 23:19:24,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-24 23:19:24,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 221 states have (on average 1.2895927601809956) internal successors, (285), 240 states have internal predecessors, (285), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-24 23:19:24,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 502 transitions. [2023-11-24 23:19:24,563 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 502 transitions. Word has length 121 [2023-11-24 23:19:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:24,566 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 502 transitions. [2023-11-24 23:19:24,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:19:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 502 transitions. [2023-11-24 23:19:24,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-24 23:19:24,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:24,579 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:24,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:19:24,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:24,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:24,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1633703534, now seen corresponding path program 1 times [2023-11-24 23:19:24,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:24,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914996875] [2023-11-24 23:19:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:24,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:19:24,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914996875] [2023-11-24 23:19:24,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914996875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:24,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:24,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:24,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965300743] [2023-11-24 23:19:24,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:24,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:24,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:24,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:24,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:24,897 INFO L87 Difference]: Start difference. First operand 374 states and 502 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:19:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:25,056 INFO L93 Difference]: Finished difference Result 592 states and 780 transitions. [2023-11-24 23:19:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:25,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 127 [2023-11-24 23:19:25,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:25,062 INFO L225 Difference]: With dead ends: 592 [2023-11-24 23:19:25,062 INFO L226 Difference]: Without dead ends: 376 [2023-11-24 23:19:25,064 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 [2023-11-24 23:19:25,065 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 0 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:25,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 901 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-24 23:19:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2023-11-24 23:19:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 223 states have (on average 1.2869955156950672) internal successors, (287), 242 states have internal predecessors, (287), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-24 23:19:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 504 transitions. [2023-11-24 23:19:25,104 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 504 transitions. Word has length 127 [2023-11-24 23:19:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:25,105 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 504 transitions. [2023-11-24 23:19:25,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:19:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 504 transitions. [2023-11-24 23:19:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 23:19:25,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:25,110 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:25,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:19:25,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:25,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:25,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1340930158, now seen corresponding path program 1 times [2023-11-24 23:19:25,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:25,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838915998] [2023-11-24 23:19:25,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:25,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:19:25,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:25,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838915998] [2023-11-24 23:19:25,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838915998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:25,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:25,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:25,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192799221] [2023-11-24 23:19:25,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:25,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:25,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:25,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:25,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:25,260 INFO L87 Difference]: Start difference. First operand 376 states and 504 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:19:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:25,427 INFO L93 Difference]: Finished difference Result 751 states and 1028 transitions. [2023-11-24 23:19:25,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:25,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2023-11-24 23:19:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:25,432 INFO L225 Difference]: With dead ends: 751 [2023-11-24 23:19:25,433 INFO L226 Difference]: Without dead ends: 443 [2023-11-24 23:19:25,435 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 [2023-11-24 23:19:25,436 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 84 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:25,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 902 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:19:25,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-24 23:19:25,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 438. [2023-11-24 23:19:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 271 states have (on average 1.3431734317343174) internal successors, (364), 292 states have internal predecessors, (364), 123 states have call successors, (123), 43 states have call predecessors, (123), 43 states have return successors, (122), 121 states have call predecessors, (122), 122 states have call successors, (122) [2023-11-24 23:19:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 609 transitions. [2023-11-24 23:19:25,474 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 609 transitions. Word has length 132 [2023-11-24 23:19:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:25,475 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 609 transitions. [2023-11-24 23:19:25,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:19:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 609 transitions. [2023-11-24 23:19:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-24 23:19:25,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:25,481 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:25,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:19:25,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__ForwardErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:25,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:25,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1476052526, now seen corresponding path program 1 times [2023-11-24 23:19:25,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:25,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083328927] [2023-11-24 23:19:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:25,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:25,774 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:19:25,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:25,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083328927] [2023-11-24 23:19:25,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083328927] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:19:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067289109] [2023-11-24 23:19:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:25,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:19:25,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:25,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:19:25,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e357841-70ba-4228-9151-709f6861727e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:19:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:26,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:19:26,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:19:26,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:19:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 23:19:26,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067289109] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:19:26,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1778774462] [2023-11-24 23:19:26,531 INFO L159 IcfgInterpreter]: Started Sifa with 112 locations of interest [2023-11-24 23:19:26,531 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:19:26,540 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:19:26,546 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:19:26,546 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs