./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5 --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 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:42:54,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:42:54,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:42:54,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:42:54,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:42:54,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:42:54,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:42:54,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:42:54,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:42:54,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:42:54,291 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:42:54,292 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:42:54,292 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:42:54,293 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:42:54,293 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:42:54,294 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:42:54,294 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:42:54,295 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:42:54,295 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:42:54,296 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:42:54,296 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:42:54,297 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:42:54,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:42:54,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:42:54,299 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:42:54,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:42:54,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:42:54,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:42:54,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:42:54,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:42:54,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:42:54,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:42:54,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:42:54,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:42:54,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:42:54,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:42:54,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:42:54,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:42:54,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:42:54,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:42:54,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:42:54,320 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:42:54,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:42:54,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:42:54,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:42:54,321 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:42:54,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:42:54,321 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_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 [2023-11-21 19:42:54,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:42:54,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:42:54,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:42:54,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:42:54,639 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:42:54,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/seq-pthread/cs_szymanski.i [2023-11-21 19:42:57,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:42:58,116 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:42:58,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/sv-benchmarks/c/seq-pthread/cs_szymanski.i [2023-11-21 19:42:58,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/data/032b716a6/de02aab0f3644fc98fbed812f2c86fc6/FLAGb6780db2b [2023-11-21 19:42:58,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/data/032b716a6/de02aab0f3644fc98fbed812f2c86fc6 [2023-11-21 19:42:58,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:42:58,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:42:58,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:42:58,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:42:58,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:42:58,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:42:58" (1/1) ... [2023-11-21 19:42:58,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb30925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:58, skipping insertion in model container [2023-11-21 19:42:58,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:42:58" (1/1) ... [2023-11-21 19:42:58,284 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:42:58,809 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_120e9e69-2f89-436c-a3db-96cdc30d9893/sv-benchmarks/c/seq-pthread/cs_szymanski.i[23606,23619] [2023-11-21 19:42:59,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:42:59,039 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:42:59,109 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_120e9e69-2f89-436c-a3db-96cdc30d9893/sv-benchmarks/c/seq-pthread/cs_szymanski.i[23606,23619] [2023-11-21 19:42:59,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:42:59,235 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:42:59,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59 WrapperNode [2023-11-21 19:42:59,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:42:59,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:42:59,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:42:59,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:42:59,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,326 INFO L138 Inliner]: procedures = 145, calls = 289, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 401 [2023-11-21 19:42:59,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:42:59,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:42:59,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:42:59,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:42:59,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:42:59,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:42:59,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:42:59,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:42:59,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (1/1) ... [2023-11-21 19:42:59,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:42:59,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:42:59,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:42:59,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:42:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:42:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:42:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:42:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:42:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:42:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:42:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:42:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-21 19:42:59,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-21 19:42:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:42:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-21 19:42:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-21 19:42:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 19:42:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 19:42:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:42:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:42:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-21 19:42:59,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-21 19:42:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:42:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:42:59,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:42:59,779 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:42:59,783 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:43:02,622 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:43:02,762 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:43:02,763 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:43:02,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:02 BoogieIcfgContainer [2023-11-21 19:43:02,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:43:02,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:43:02,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:43:02,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:43:02,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:42:58" (1/3) ... [2023-11-21 19:43:02,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0acea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:43:02, skipping insertion in model container [2023-11-21 19:43:02,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:42:59" (2/3) ... [2023-11-21 19:43:02,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0acea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:43:02, skipping insertion in model container [2023-11-21 19:43:02,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:02" (3/3) ... [2023-11-21 19:43:02,777 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_szymanski.i [2023-11-21 19:43:02,796 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:43:02,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:43:02,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:43:02,860 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;@59749e17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:43:02,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:43:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 55 states have internal predecessors, (68), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-21 19:43:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-21 19:43:02,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:43:02,885 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:43:02,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:43:02,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:43:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1848185901, now seen corresponding path program 1 times [2023-11-21 19:43:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:43:02,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578252387] [2023-11-21 19:43:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:43:02,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:43:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:43:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:43:03,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:43:03,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578252387] [2023-11-21 19:43:03,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578252387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:43:03,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:43:03,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:43:03,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460016515] [2023-11-21 19:43:03,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:43:03,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:43:03,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:43:03,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:43:03,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:43:03,835 INFO L87 Difference]: Start difference. First operand has 93 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 55 states have internal predecessors, (68), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 19:43:05,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:43:07,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:43:08,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:43:08,069 INFO L93 Difference]: Finished difference Result 185 states and 263 transitions. [2023-11-21 19:43:08,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:43:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 82 [2023-11-21 19:43:08,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:43:08,082 INFO L225 Difference]: With dead ends: 185 [2023-11-21 19:43:08,082 INFO L226 Difference]: Without dead ends: 93 [2023-11-21 19:43:08,086 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 [2023-11-21 19:43:08,091 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 2 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:43:08,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 232 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-21 19:43:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-21 19:43:08,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2023-11-21 19:43:08,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 54 states have internal predecessors, (66), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-21 19:43:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2023-11-21 19:43:08,151 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 82 [2023-11-21 19:43:08,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:43:08,152 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2023-11-21 19:43:08,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 19:43:08,153 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2023-11-21 19:43:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-21 19:43:08,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:43:08,159 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:43:08,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:43:08,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:43:08,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:43:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1198312181, now seen corresponding path program 1 times [2023-11-21 19:43:08,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:43:08,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101158248] [2023-11-21 19:43:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:43:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:43:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:43:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:43:08,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:43:08,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101158248] [2023-11-21 19:43:08,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101158248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:43:08,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:43:08,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:43:08,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286931507] [2023-11-21 19:43:08,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:43:08,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:43:08,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:43:08,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:43:08,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:43:08,766 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 19:43:10,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:43:12,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:43:12,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:43:12,940 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2023-11-21 19:43:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:43:12,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 84 [2023-11-21 19:43:12,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:43:12,943 INFO L225 Difference]: With dead ends: 183 [2023-11-21 19:43:12,944 INFO L226 Difference]: Without dead ends: 93 [2023-11-21 19:43:12,945 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 [2023-11-21 19:43:12,947 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:43:12,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2023-11-21 19:43:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-21 19:43:12,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-21 19:43:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-21 19:43:12,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 131 transitions. [2023-11-21 19:43:12,968 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 131 transitions. Word has length 84 [2023-11-21 19:43:12,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:43:12,968 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 131 transitions. [2023-11-21 19:43:12,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 19:43:12,969 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 131 transitions. [2023-11-21 19:43:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-21 19:43:12,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:43:12,973 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:43:12,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:43:12,974 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:43:12,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:43:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1025367861, now seen corresponding path program 1 times [2023-11-21 19:43:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:43:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838895470] [2023-11-21 19:43:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:43:12,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:43:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:43:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:43:13,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:43:13,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838895470] [2023-11-21 19:43:13,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838895470] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:43:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099355016] [2023-11-21 19:43:13,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:43:13,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:43:13,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:43:13,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:43:13,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120e9e69-2f89-436c-a3db-96cdc30d9893/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:43:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:43:14,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:43:14,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:43:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:43:14,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:43:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:43:14,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099355016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:43:14,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2115889277] [2023-11-21 19:43:14,353 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2023-11-21 19:43:14,353 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:43:14,357 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:43:14,364 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:43:14,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:43:47,659 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 19:43:53,073 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse18 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse20 (+ 6 |c_~#__CS_thread_status~0.offset|)) (.cse36 (+ |c_~#flag1~0.offset| 4)) (.cse1 (+ |c_~#__CS_thread_lockedon~0.offset| 32)) (.cse42 (+ 32 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse3 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse44 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse7 (+ |c_~#__CS_thread_lockedon~0.offset| 28)) (.cse46 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 28)) (.cse5 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse48 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse22 (+ |c_~#__CS_thread_lockedon~0.offset| 24)) (.cse50 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 24)) (.cse9 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse51 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12)) (.cse12 (+ 8 |c_~#__CS_thread_status~0.offset|)) (.cse21 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse32 (+ |c_~#flag2~0.offset| 8)) (.cse33 (+ |c_~#flag2~0.offset| 4)) (.cse29 (+ 4 |c_~#x~0.offset|)) (.cse28 (+ 8 |c_~#x~0.offset|)) (.cse35 (+ |c_~#flag1~0.offset| 8)) (.cse16 (+ 7 |c_~#__CS_thread_status~0.offset|)) (.cse14 (+ 5 |c_~#__CS_thread_status~0.offset|))) (and (exists ((v_~__CS_thread~0.base_40 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_40 0 |#funAddr~main_thread.base|))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (exists ((|v_#memory_int_95| (Array Int (Array Int Int))) (|v_#memory_int_96| (Array Int (Array Int Int))) (|v_#memory_int_97| (Array Int (Array Int Int))) (|v_#memory_int_98| (Array Int (Array Int Int))) (|v_#memory_int_99| (Array Int (Array Int Int))) (|v_#memory_int_100| (Array Int (Array Int Int))) (|v_#memory_int_164| (Array Int (Array Int Int)))) (let ((.cse0 (select |v_#memory_int_100| |c_~#__CS_thread_lockedon~0.base|)) (.cse6 (select |v_#memory_int_97| |c_~#__CS_thread_lockedon~0.base|)) (.cse2 (select |v_#memory_int_96| |c_~#__CS_thread_lockedon~0.base|)) (.cse10 (select |v_#memory_int_95| |c_~#__CS_thread_lockedon~0.base|)) (.cse4 (select |v_#memory_int_98| |c_~#__CS_thread_lockedon~0.base|))) (and (= (store |v_#memory_int_100| |c_~#__CS_thread_lockedon~0.base| (store .cse0 .cse1 (select (select |v_#memory_int_99| |c_~#__CS_thread_lockedon~0.base|) .cse1))) |v_#memory_int_99|) (= (store |v_#memory_int_96| |c_~#__CS_thread_lockedon~0.base| (store .cse2 .cse3 (select .cse0 .cse3))) |v_#memory_int_100|) (= |v_#memory_int_97| (store |v_#memory_int_98| |c_~#__CS_thread_lockedon~0.base| (store .cse4 .cse5 (select .cse6 .cse5)))) (= |v_#memory_int_96| (store |v_#memory_int_97| |c_~#__CS_thread_lockedon~0.base| (store .cse6 .cse7 (select .cse2 .cse7)))) (= (let ((.cse8 (store |v_#memory_int_164| |c_~#__CS_thread_status~0.base| (let ((.cse11 (let ((.cse13 (let ((.cse15 (let ((.cse17 (let ((.cse19 (store (select |v_#memory_int_164| |c_~#__CS_thread_status~0.base|) .cse21 (select (select |v_#memory_int_164| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 3))))) (store .cse19 .cse20 (select (select (store |v_#memory_int_164| |c_~#__CS_thread_status~0.base| .cse19) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 6)))))) (store .cse17 .cse18 (select (select (store |v_#memory_int_164| |c_~#__CS_thread_status~0.base| .cse17) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 4)))))) (store .cse15 .cse16 (select (select (store |v_#memory_int_164| |c_~#__CS_thread_status~0.base| .cse15) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ 7 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset|)))))) (store .cse13 .cse14 (select (select (store |v_#memory_int_164| |c_~#__CS_thread_status~0.base| .cse13) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 5)))))) (store .cse11 .cse12 (select (select (store |v_#memory_int_164| |c_~#__CS_thread_status~0.base| .cse11) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 8))))))) (store .cse8 |c_~#__CS_thread_lockedon~0.base| (store (select .cse8 |c_~#__CS_thread_lockedon~0.base|) .cse9 (select .cse10 .cse9)))) |v_#memory_int_95|) (= (store |v_#memory_int_95| |c_~#__CS_thread_lockedon~0.base| (store .cse10 .cse22 (select .cse4 .cse22))) |v_#memory_int_98|) (= (let ((.cse23 (let ((.cse24 (let ((.cse25 (let ((.cse26 (let ((.cse30 (store |v_#memory_int_99| |c_~#flag1~0.base| (let ((.cse34 (store (select |v_#memory_int_99| |c_~#flag1~0.base|) .cse36 (select (select |v_#memory_int_99| |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.offset|))))) (store .cse34 .cse35 (select (select (store |v_#memory_int_99| |c_~#flag1~0.base| .cse34) |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~#__CS_cp_flag1~0#1.offset|))))))) (store .cse30 |c_~#flag2~0.base| (let ((.cse31 (store (select .cse30 |c_~#flag2~0.base|) .cse33 (select (select .cse30 |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.offset| 4))))) (store .cse31 .cse32 (select (select (store .cse30 |c_~#flag2~0.base| .cse31) |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_flag2~0#1.offset| 8)))))))) (store .cse26 |c_~#x~0.base| (let ((.cse27 (store (select .cse26 |c_~#x~0.base|) .cse29 (select (select .cse26 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (+ 4 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|))))) (store .cse27 .cse28 (select (select (store .cse26 |c_~#x~0.base| .cse27) |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~#__CS_cp_x~0#1.offset|)))))))) (store .cse25 |c_~#__CS_thread_born_round~0.base| (store (select .cse25 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse24 |c_~#__CS_thread_status~0.base| (store (select .cse24 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse23 |c_~#__CS_thread_allocated~0.base| (store (select .cse23 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1))) |c_#memory_int|)))) (exists ((|v_#memory_$Pointer$.offset_104| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_105| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_106| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_107| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_95| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_94| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_96| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_99| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_98| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_100| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_101| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_102| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_103| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_235| (Array Int (Array Int Int)))) (let ((.cse38 (select |v_#memory_$Pointer$.offset_104| |c_~#__CS_thread_status~0.base|)) (.cse53 (select |v_#memory_$Pointer$.offset_95| |c_~#__CS_thread_status~0.base|)) (.cse54 (select |v_#memory_$Pointer$.offset_94| |c_~#__CS_thread_status~0.base|)) (.cse37 (select |v_#memory_$Pointer$.offset_102| |c_~#__CS_thread_status~0.base|)) (.cse40 (select |v_#memory_$Pointer$.offset_101| |c_~#flag1~0.base|)) (.cse52 (select |v_#memory_$Pointer$.offset_107| |c_~#__CS_thread_status~0.base|)) (.cse56 (select |v_#memory_$Pointer$.offset_97| |c_~#x~0.base|)) (.cse55 (select |v_#memory_$Pointer$.offset_99| |c_~#flag2~0.base|))) (and (= |v_#memory_$Pointer$.offset_104| (store |v_#memory_$Pointer$.offset_102| |c_~#__CS_thread_status~0.base| (store .cse37 .cse14 (select .cse38 .cse14)))) (= (store |v_#memory_$Pointer$.offset_104| |c_~#__CS_thread_status~0.base| (store .cse38 .cse12 (select (select |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_status~0.base|) .cse12))) |v_#memory_$Pointer$.offset_103|) (= |v_#memory_$Pointer$.offset_101| (let ((.cse39 (store |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base| (let ((.cse41 (let ((.cse43 (let ((.cse45 (let ((.cse47 (let ((.cse49 (store (select |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base|) .cse9 (select (select |v_#memory_$Pointer$.offset_103| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse51)))) (store .cse49 .cse22 (select (select (store |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base| .cse49) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse50))))) (store .cse47 .cse5 (select (select (store |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base| .cse47) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse48))))) (store .cse45 .cse7 (select (select (store |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base| .cse45) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse46))))) (store .cse43 .cse3 (select (select (store |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base| .cse43) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse44))))) (store .cse41 .cse1 (select (select (store |v_#memory_$Pointer$.offset_103| |c_~#__CS_thread_lockedon~0.base| .cse41) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse42)))))) (store .cse39 |c_~#flag1~0.base| (store (select .cse39 |c_~#flag1~0.base|) .cse36 (select .cse40 .cse36))))) (= (store |v_#memory_$Pointer$.offset_107| |c_~#__CS_thread_status~0.base| (store .cse52 .cse20 (select .cse53 .cse20))) |v_#memory_$Pointer$.offset_95|) (= (store |v_#memory_$Pointer$.offset_95| |c_~#__CS_thread_status~0.base| (store .cse53 .cse18 (select .cse54 .cse18))) |v_#memory_$Pointer$.offset_94|) (= (store |v_#memory_$Pointer$.offset_99| |c_~#flag2~0.base| (store .cse55 .cse32 (select (select |v_#memory_$Pointer$.offset_98| |c_~#flag2~0.base|) .cse32))) |v_#memory_$Pointer$.offset_98|) (= (store |v_#memory_$Pointer$.offset_94| |c_~#__CS_thread_status~0.base| (store .cse54 .cse16 (select .cse37 .cse16))) |v_#memory_$Pointer$.offset_102|) (= (store |v_#memory_$Pointer$.offset_98| |c_~#x~0.base| (store (select |v_#memory_$Pointer$.offset_98| |c_~#x~0.base|) .cse29 (select .cse56 .cse29))) |v_#memory_$Pointer$.offset_97|) (= |v_#memory_$Pointer$.offset_106| (store |v_#memory_$Pointer$.offset_105| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_105| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_106| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|)))) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_106| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_106| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_101| |c_~#flag1~0.base| (store .cse40 .cse35 (select (select |v_#memory_$Pointer$.offset_100| |c_~#flag1~0.base|) .cse35))) |v_#memory_$Pointer$.offset_100|) (= (store |v_#memory_$Pointer$.offset_235| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_235| |c_~#__CS_thread_status~0.base|) .cse21 (select .cse52 .cse21))) |v_#memory_$Pointer$.offset_107|) (= (store |v_#memory_$Pointer$.offset_96| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_96| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_105| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.offset_105|) (= (store |v_#memory_$Pointer$.offset_97| |c_~#x~0.base| (store .cse56 .cse28 (select (select |v_#memory_$Pointer$.offset_96| |c_~#x~0.base|) .cse28))) |v_#memory_$Pointer$.offset_96|) (= (store |v_#memory_$Pointer$.offset_100| |c_~#flag2~0.base| (store (select |v_#memory_$Pointer$.offset_100| |c_~#flag2~0.base|) .cse33 (select .cse55 .cse33))) |v_#memory_$Pointer$.offset_99|)))) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem70#1|) (exists ((|v_#memory_$Pointer$.base_97| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_96| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_99| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_98| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_107| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_95| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_94| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_106| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_105| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_104| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_235| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_103| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_102| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_101| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_100| (Array Int (Array Int Int)))) (let ((.cse57 (select |v_#memory_$Pointer$.base_104| |c_~#__CS_thread_status~0.base|)) (.cse59 (select |v_#memory_$Pointer$.base_106| |c_~#__CS_thread_status~0.base|)) (.cse68 (select |v_#memory_$Pointer$.base_99| |c_~#flag2~0.base|)) (.cse69 (select |v_#memory_$Pointer$.base_98| |c_~#x~0.base|)) (.cse61 (select |v_#memory_$Pointer$.base_97| |c_~#flag1~0.base|)) (.cse58 (select |v_#memory_$Pointer$.base_107| |c_~#__CS_thread_status~0.base|)) (.cse70 (select |v_#memory_$Pointer$.base_101| |c_~#__CS_thread_status~0.base|)) (.cse67 (select |v_#memory_$Pointer$.base_103| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.base_107| (store |v_#memory_$Pointer$.base_104| |c_~#__CS_thread_status~0.base| (store .cse57 .cse18 (select .cse58 .cse18)))) (= (store |v_#memory_$Pointer$.base_105| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_105| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= |v_#memory_$Pointer$.base_94| (store |v_#memory_$Pointer$.base_100| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_100| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_94| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|)))) (= (store |v_#memory_$Pointer$.base_106| |c_~#__CS_thread_status~0.base| (store .cse59 .cse20 (select .cse57 .cse20))) |v_#memory_$Pointer$.base_104|) (= (store |v_#memory_$Pointer$.base_94| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_94| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_105| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.base_105|) (= (let ((.cse60 (store |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base| (let ((.cse62 (let ((.cse63 (let ((.cse64 (let ((.cse65 (let ((.cse66 (store (select |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base|) .cse9 (select (select |v_#memory_$Pointer$.base_102| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse51)))) (store .cse66 .cse22 (select (select (store |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base| .cse66) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse50))))) (store .cse65 .cse5 (select (select (store |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base| .cse65) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse48))))) (store .cse64 .cse7 (select (select (store |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base| .cse64) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse46))))) (store .cse63 .cse3 (select (select (store |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base| .cse63) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse44))))) (store .cse62 .cse1 (select (select (store |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_lockedon~0.base| .cse62) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse42)))))) (store .cse60 |c_~#flag1~0.base| (store (select .cse60 |c_~#flag1~0.base|) .cse36 (select .cse61 .cse36)))) |v_#memory_$Pointer$.base_97|) (= (store |v_#memory_$Pointer$.base_103| |c_~#__CS_thread_status~0.base| (store .cse67 .cse12 (select (select |v_#memory_$Pointer$.base_102| |c_~#__CS_thread_status~0.base|) .cse12))) |v_#memory_$Pointer$.base_102|) (= (store |v_#memory_$Pointer$.base_235| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_235| |c_~#__CS_thread_status~0.base|) .cse21 (select .cse59 .cse21))) |v_#memory_$Pointer$.base_106|) (= (store |v_#memory_$Pointer$.base_99| |c_~#flag2~0.base| (store .cse68 .cse32 (select (select |v_#memory_$Pointer$.base_95| |c_~#flag2~0.base|) .cse32))) |v_#memory_$Pointer$.base_95|) (= (store |v_#memory_$Pointer$.base_96| |c_~#flag2~0.base| (store (select |v_#memory_$Pointer$.base_96| |c_~#flag2~0.base|) .cse33 (select .cse68 .cse33))) |v_#memory_$Pointer$.base_99|) (= (store |v_#memory_$Pointer$.base_95| |c_~#x~0.base| (store (select |v_#memory_$Pointer$.base_95| |c_~#x~0.base|) .cse29 (select .cse69 .cse29))) |v_#memory_$Pointer$.base_98|) (= (store |v_#memory_$Pointer$.base_98| |c_~#x~0.base| (store .cse69 .cse28 (select (select |v_#memory_$Pointer$.base_100| |c_~#x~0.base|) .cse28))) |v_#memory_$Pointer$.base_100|) (= (store |v_#memory_$Pointer$.base_97| |c_~#flag1~0.base| (store .cse61 .cse35 (select (select |v_#memory_$Pointer$.base_96| |c_~#flag1~0.base|) .cse35))) |v_#memory_$Pointer$.base_96|) (= (store |v_#memory_$Pointer$.base_107| |c_~#__CS_thread_status~0.base| (store .cse58 .cse16 (select .cse70 .cse16))) |v_#memory_$Pointer$.base_101|) (= |v_#memory_$Pointer$.base_103| (store |v_#memory_$Pointer$.base_101| |c_~#__CS_thread_status~0.base| (store .cse70 .cse14 (select .cse67 .cse14))))))) (exists ((v_~__CS_thread~0.offset_40 (Array Int Int))) (= (store v_~__CS_thread~0.offset_40 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) (= c_~__CS_round~0 0) (= c_~__CS_thread_index~0 0))) is different from false [2023-11-21 19:43:53,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2115889277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:43:53,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:43:53,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 8 [2023-11-21 19:43:53,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965882521] [2023-11-21 19:43:53,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:43:53,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:43:53,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:43:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:43:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2023-11-21 19:43:53,091 INFO L87 Difference]: Start difference. First operand 93 states and 131 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)