./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje --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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:37:58,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:37:58,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:37:58,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:37:58,255 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:37:58,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:37:58,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:37:58,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:37:58,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:37:58,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:37:58,287 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:37:58,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:37:58,288 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:37:58,288 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:37:58,289 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:37:58,289 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:37:58,290 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:37:58,290 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:37:58,290 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:37:58,291 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:37:58,291 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:37:58,292 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:37:58,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:37:58,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:37:58,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:37:58,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:37:58,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:37:58,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:37:58,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:37:58,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:37:58,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:37:58,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:37:58,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:37:58,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:37:58,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:37:58,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:37:58,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:37:58,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:37:58,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:37:58,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:37:58,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:37:58,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:37:58,321 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:37:58,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:37:58,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:37:58,322 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:37:58,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:37:58,322 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_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2024-11-09 06:37:58,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:37:58,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:37:58,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:37:58,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:37:58,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:37:58,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i Unable to find full path for "g++" [2024-11-09 06:38:00,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:38:01,145 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:38:01,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2024-11-09 06:38:01,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/data/6997603c1/171d405350244d00b78d3e32b6dabe9a/FLAG240662c61 [2024-11-09 06:38:01,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/data/6997603c1/171d405350244d00b78d3e32b6dabe9a [2024-11-09 06:38:01,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:38:01,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:38:01,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:38:01,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:38:01,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:38:01,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:38:01" (1/1) ... [2024-11-09 06:38:01,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e736020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:01, skipping insertion in model container [2024-11-09 06:38:01,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:38:01" (1/1) ... [2024-11-09 06:38:01,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:38:01,827 WARN L250 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_969868b8-a5b6-4b28-98f2-b8c271d1803e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[186287,186300] [2024-11-09 06:38:01,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:38:01,876 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:38:01,921 WARN L250 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_969868b8-a5b6-4b28-98f2-b8c271d1803e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[186287,186300] [2024-11-09 06:38:01,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:38:02,015 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:38:02,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02 WrapperNode [2024-11-09 06:38:02,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:38:02,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:38:02,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:38:02,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:38:02,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,094 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 108 [2024-11-09 06:38:02,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:38:02,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:38:02,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:38:02,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:38:02,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:38:02,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:38:02,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:38:02,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:38:02,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (1/1) ... [2024-11-09 06:38:02,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:38:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:38:02,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:38:02,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:38:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-09 06:38:02,234 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-09 06:38:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 06:38:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:38:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:38:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 06:38:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:38:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:38:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:38:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:38:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:38:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:38:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:38:02,237 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:38:02,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:38:02,530 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:38:02,971 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:38:02,971 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:38:03,106 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:38:03,106 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:38:03,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:38:03 BoogieIcfgContainer [2024-11-09 06:38:03,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:38:03,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:38:03,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:38:03,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:38:03,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:38:01" (1/3) ... [2024-11-09 06:38:03,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd17605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:38:03, skipping insertion in model container [2024-11-09 06:38:03,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:38:02" (2/3) ... [2024-11-09 06:38:03,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd17605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:38:03, skipping insertion in model container [2024-11-09 06:38:03,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:38:03" (3/3) ... [2024-11-09 06:38:03,118 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2024-11-09 06:38:03,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:38:03,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 06:38:03,135 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:38:03,200 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:38:03,234 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 50 transitions, 114 flow [2024-11-09 06:38:03,334 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 588 states, 580 states have (on average 2.668965517241379) internal successors, (1548), 587 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:03,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:38:03,373 INFO L333 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, 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;@8dcbe21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:38:03,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 06:38:03,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 588 states, 580 states have (on average 2.668965517241379) internal successors, (1548), 587 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:38:03,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:03,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:03,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:03,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1544696618, now seen corresponding path program 1 times [2024-11-09 06:38:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:03,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227049917] [2024-11-09 06:38:03,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:03,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:04,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:04,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:04,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227049917] [2024-11-09 06:38:04,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227049917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:04,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:04,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:38:04,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580424120] [2024-11-09 06:38:04,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:04,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:38:04,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:04,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:38:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:38:04,082 INFO L87 Difference]: Start difference. First operand has 588 states, 580 states have (on average 2.668965517241379) internal successors, (1548), 587 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:04,294 INFO L93 Difference]: Finished difference Result 851 states and 2232 transitions. [2024-11-09 06:38:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:38:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:38:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:04,323 INFO L225 Difference]: With dead ends: 851 [2024-11-09 06:38:04,323 INFO L226 Difference]: Without dead ends: 405 [2024-11-09 06:38:04,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:38:04,334 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:04,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:38:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-09 06:38:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-09 06:38:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 401 states have (on average 2.4688279301745637) internal successors, (990), 404 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 990 transitions. [2024-11-09 06:38:04,402 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 990 transitions. Word has length 8 [2024-11-09 06:38:04,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:04,402 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 990 transitions. [2024-11-09 06:38:04,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 990 transitions. [2024-11-09 06:38:04,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:38:04,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:04,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:04,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:38:04,405 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:04,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:04,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1605291128, now seen corresponding path program 1 times [2024-11-09 06:38:04,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:04,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529771698] [2024-11-09 06:38:04,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:04,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:04,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529771698] [2024-11-09 06:38:04,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529771698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:04,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:04,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:38:04,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651921818] [2024-11-09 06:38:04,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:04,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:38:04,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:04,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:38:04,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:38:04,631 INFO L87 Difference]: Start difference. First operand 405 states and 990 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:04,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:04,817 INFO L93 Difference]: Finished difference Result 597 states and 1462 transitions. [2024-11-09 06:38:04,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:38:04,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 06:38:04,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:04,823 INFO L225 Difference]: With dead ends: 597 [2024-11-09 06:38:04,823 INFO L226 Difference]: Without dead ends: 436 [2024-11-09 06:38:04,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:38:04,825 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 29 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:04,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 22 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:38:04,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-09 06:38:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2024-11-09 06:38:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 433 states have (on average 2.4295612009237875) internal successors, (1052), 435 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1052 transitions. [2024-11-09 06:38:04,851 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1052 transitions. Word has length 10 [2024-11-09 06:38:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:04,852 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 1052 transitions. [2024-11-09 06:38:04,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1052 transitions. [2024-11-09 06:38:04,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:38:04,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:04,858 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:04,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:38:04,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:04,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1696499734, now seen corresponding path program 1 times [2024-11-09 06:38:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081115850] [2024-11-09 06:38:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:04,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:04,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081115850] [2024-11-09 06:38:04,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081115850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:04,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:04,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:38:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137579872] [2024-11-09 06:38:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:04,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:38:04,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:38:04,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:38:04,985 INFO L87 Difference]: Start difference. First operand 436 states and 1052 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:05,141 INFO L93 Difference]: Finished difference Result 436 states and 1052 transitions. [2024-11-09 06:38:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:38:05,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 06:38:05,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:05,145 INFO L225 Difference]: With dead ends: 436 [2024-11-09 06:38:05,145 INFO L226 Difference]: Without dead ends: 180 [2024-11-09 06:38:05,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:38:05,147 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:05,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 5 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:38:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-09 06:38:05,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-09 06:38:05,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 2.269662921348315) internal successors, (404), 179 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 404 transitions. [2024-11-09 06:38:05,164 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 404 transitions. Word has length 16 [2024-11-09 06:38:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:05,169 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 404 transitions. [2024-11-09 06:38:05,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:05,169 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 404 transitions. [2024-11-09 06:38:05,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:05,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:05,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:05,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:38:05,171 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:05,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:05,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1379650883, now seen corresponding path program 1 times [2024-11-09 06:38:05,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:05,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172439762] [2024-11-09 06:38:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:06,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:06,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172439762] [2024-11-09 06:38:06,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172439762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:06,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:06,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:38:06,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980237189] [2024-11-09 06:38:06,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:06,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:38:06,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:06,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:38:06,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:38:06,508 INFO L87 Difference]: Start difference. First operand 180 states and 404 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:07,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:07,108 INFO L93 Difference]: Finished difference Result 261 states and 544 transitions. [2024-11-09 06:38:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:38:07,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:07,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:07,112 INFO L225 Difference]: With dead ends: 261 [2024-11-09 06:38:07,112 INFO L226 Difference]: Without dead ends: 259 [2024-11-09 06:38:07,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:38:07,118 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 99 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:07,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 29 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:38:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-09 06:38:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 222. [2024-11-09 06:38:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 2.2045454545454546) internal successors, (485), 221 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 485 transitions. [2024-11-09 06:38:07,133 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 485 transitions. Word has length 25 [2024-11-09 06:38:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:07,133 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 485 transitions. [2024-11-09 06:38:07,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 485 transitions. [2024-11-09 06:38:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:07,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:07,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:07,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:38:07,135 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:07,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash 383479963, now seen corresponding path program 2 times [2024-11-09 06:38:07,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:07,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226701260] [2024-11-09 06:38:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:08,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:08,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:08,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226701260] [2024-11-09 06:38:08,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226701260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:08,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:08,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:38:08,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359471855] [2024-11-09 06:38:08,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:08,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:38:08,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:08,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:38:08,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:38:08,257 INFO L87 Difference]: Start difference. First operand 222 states and 485 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:08,808 INFO L93 Difference]: Finished difference Result 306 states and 617 transitions. [2024-11-09 06:38:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:38:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:08,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:08,811 INFO L225 Difference]: With dead ends: 306 [2024-11-09 06:38:08,811 INFO L226 Difference]: Without dead ends: 304 [2024-11-09 06:38:08,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:38:08,813 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 85 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:08,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 48 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:38:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-09 06:38:08,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 230. [2024-11-09 06:38:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 228 states have (on average 2.192982456140351) internal successors, (500), 229 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 500 transitions. [2024-11-09 06:38:08,830 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 500 transitions. Word has length 25 [2024-11-09 06:38:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:08,832 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 500 transitions. [2024-11-09 06:38:08,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 500 transitions. [2024-11-09 06:38:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:08,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:08,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:08,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:38:08,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:08,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2086419039, now seen corresponding path program 3 times [2024-11-09 06:38:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:08,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153035436] [2024-11-09 06:38:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:08,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:09,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:09,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153035436] [2024-11-09 06:38:09,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153035436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:09,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:09,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:38:09,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025499736] [2024-11-09 06:38:09,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:09,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:38:09,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:09,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:38:09,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:38:09,884 INFO L87 Difference]: Start difference. First operand 230 states and 500 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:10,363 INFO L93 Difference]: Finished difference Result 283 states and 583 transitions. [2024-11-09 06:38:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:38:10,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:10,366 INFO L225 Difference]: With dead ends: 283 [2024-11-09 06:38:10,366 INFO L226 Difference]: Without dead ends: 281 [2024-11-09 06:38:10,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:38:10,369 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:10,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 32 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:38:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-09 06:38:10,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 222. [2024-11-09 06:38:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 2.2045454545454546) internal successors, (485), 221 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 485 transitions. [2024-11-09 06:38:10,383 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 485 transitions. Word has length 25 [2024-11-09 06:38:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:10,383 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 485 transitions. [2024-11-09 06:38:10,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 485 transitions. [2024-11-09 06:38:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:10,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:10,385 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:10,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:38:10,385 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:10,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1021951905, now seen corresponding path program 4 times [2024-11-09 06:38:10,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:10,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314543467] [2024-11-09 06:38:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:11,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314543467] [2024-11-09 06:38:11,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314543467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:11,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:11,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:11,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29010526] [2024-11-09 06:38:11,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:11,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:11,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:11,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:11,725 INFO L87 Difference]: Start difference. First operand 222 states and 485 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:12,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:12,575 INFO L93 Difference]: Finished difference Result 455 states and 960 transitions. [2024-11-09 06:38:12,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:38:12,576 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:12,579 INFO L225 Difference]: With dead ends: 455 [2024-11-09 06:38:12,579 INFO L226 Difference]: Without dead ends: 453 [2024-11-09 06:38:12,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:38:12,581 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 118 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:12,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 33 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:12,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-09 06:38:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 288. [2024-11-09 06:38:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 286 states have (on average 2.304195804195804) internal successors, (659), 287 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 659 transitions. [2024-11-09 06:38:12,598 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 659 transitions. Word has length 25 [2024-11-09 06:38:12,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:12,600 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 659 transitions. [2024-11-09 06:38:12,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 659 transitions. [2024-11-09 06:38:12,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:12,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:12,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:12,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:38:12,603 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:12,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:12,603 INFO L85 PathProgramCache]: Analyzing trace with hash 193883265, now seen corresponding path program 5 times [2024-11-09 06:38:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:12,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767026526] [2024-11-09 06:38:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:12,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:13,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767026526] [2024-11-09 06:38:13,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767026526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:13,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:13,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:13,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136510403] [2024-11-09 06:38:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:13,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:13,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:13,900 INFO L87 Difference]: Start difference. First operand 288 states and 659 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:14,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:14,698 INFO L93 Difference]: Finished difference Result 463 states and 962 transitions. [2024-11-09 06:38:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:38:14,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:14,702 INFO L225 Difference]: With dead ends: 463 [2024-11-09 06:38:14,702 INFO L226 Difference]: Without dead ends: 461 [2024-11-09 06:38:14,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:38:14,704 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 103 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:14,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 47 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-09 06:38:14,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 291. [2024-11-09 06:38:14,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 289 states have (on average 2.301038062283737) internal successors, (665), 290 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:14,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 665 transitions. [2024-11-09 06:38:14,719 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 665 transitions. Word has length 25 [2024-11-09 06:38:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:14,720 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 665 transitions. [2024-11-09 06:38:14,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 665 transitions. [2024-11-09 06:38:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:14,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:14,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:14,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:38:14,722 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:14,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:14,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1955628393, now seen corresponding path program 6 times [2024-11-09 06:38:14,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:14,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340784771] [2024-11-09 06:38:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:15,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:15,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:15,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340784771] [2024-11-09 06:38:15,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340784771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:15,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:15,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:15,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015422307] [2024-11-09 06:38:15,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:15,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:15,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:15,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:15,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:15,810 INFO L87 Difference]: Start difference. First operand 291 states and 665 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:16,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:16,606 INFO L93 Difference]: Finished difference Result 417 states and 889 transitions. [2024-11-09 06:38:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:38:16,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:16,610 INFO L225 Difference]: With dead ends: 417 [2024-11-09 06:38:16,611 INFO L226 Difference]: Without dead ends: 415 [2024-11-09 06:38:16,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:38:16,614 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 76 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:16,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 52 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:38:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-09 06:38:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 294. [2024-11-09 06:38:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 292 states have (on average 2.297945205479452) internal successors, (671), 293 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 671 transitions. [2024-11-09 06:38:16,627 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 671 transitions. Word has length 25 [2024-11-09 06:38:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:16,628 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 671 transitions. [2024-11-09 06:38:16,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 671 transitions. [2024-11-09 06:38:16,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:16,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:16,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:16,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:38:16,631 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:16,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash 162240029, now seen corresponding path program 7 times [2024-11-09 06:38:16,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:16,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630373750] [2024-11-09 06:38:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:16,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:17,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:17,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630373750] [2024-11-09 06:38:17,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630373750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:17,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:17,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:38:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87001252] [2024-11-09 06:38:17,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:17,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:38:17,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:17,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:38:17,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:38:17,751 INFO L87 Difference]: Start difference. First operand 294 states and 671 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:18,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:18,225 INFO L93 Difference]: Finished difference Result 436 states and 926 transitions. [2024-11-09 06:38:18,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:38:18,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:18,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:18,229 INFO L225 Difference]: With dead ends: 436 [2024-11-09 06:38:18,229 INFO L226 Difference]: Without dead ends: 434 [2024-11-09 06:38:18,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:38:18,230 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 98 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:18,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 39 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:38:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-09 06:38:18,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 294. [2024-11-09 06:38:18,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 292 states have (on average 2.297945205479452) internal successors, (671), 293 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 671 transitions. [2024-11-09 06:38:18,244 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 671 transitions. Word has length 25 [2024-11-09 06:38:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:18,246 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 671 transitions. [2024-11-09 06:38:18,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 671 transitions. [2024-11-09 06:38:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:18,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:18,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:18,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:38:18,248 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:18,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1080389967, now seen corresponding path program 8 times [2024-11-09 06:38:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:18,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881819021] [2024-11-09 06:38:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:19,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:19,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881819021] [2024-11-09 06:38:19,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881819021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:19,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:19,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:38:19,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461295135] [2024-11-09 06:38:19,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:19,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:38:19,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:19,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:38:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:38:19,212 INFO L87 Difference]: Start difference. First operand 294 states and 671 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:19,617 INFO L93 Difference]: Finished difference Result 432 states and 891 transitions. [2024-11-09 06:38:19,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:38:19,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:19,621 INFO L225 Difference]: With dead ends: 432 [2024-11-09 06:38:19,621 INFO L226 Difference]: Without dead ends: 430 [2024-11-09 06:38:19,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:38:19,622 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 90 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:19,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 41 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:38:19,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-09 06:38:19,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 292. [2024-11-09 06:38:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 290 states have (on average 2.2896551724137932) internal successors, (664), 291 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 664 transitions. [2024-11-09 06:38:19,636 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 664 transitions. Word has length 25 [2024-11-09 06:38:19,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:19,636 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 664 transitions. [2024-11-09 06:38:19,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:19,636 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 664 transitions. [2024-11-09 06:38:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:19,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:19,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:19,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:38:19,638 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:19,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 556334173, now seen corresponding path program 9 times [2024-11-09 06:38:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183742890] [2024-11-09 06:38:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:20,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:20,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183742890] [2024-11-09 06:38:20,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183742890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:20,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:20,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:38:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186101338] [2024-11-09 06:38:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:20,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:38:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:38:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:38:20,588 INFO L87 Difference]: Start difference. First operand 292 states and 664 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:20,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:20,959 INFO L93 Difference]: Finished difference Result 362 states and 773 transitions. [2024-11-09 06:38:20,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:38:20,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:20,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:20,962 INFO L225 Difference]: With dead ends: 362 [2024-11-09 06:38:20,962 INFO L226 Difference]: Without dead ends: 360 [2024-11-09 06:38:20,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:38:20,964 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 66 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:20,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 27 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:38:20,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-09 06:38:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 286. [2024-11-09 06:38:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 284 states have (on average 2.2992957746478875) internal successors, (653), 285 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 653 transitions. [2024-11-09 06:38:20,975 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 653 transitions. Word has length 25 [2024-11-09 06:38:20,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:20,975 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 653 transitions. [2024-11-09 06:38:20,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 653 transitions. [2024-11-09 06:38:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:20,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:20,977 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:20,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:38:20,977 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:20,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:20,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1800100323, now seen corresponding path program 10 times [2024-11-09 06:38:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:20,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772464623] [2024-11-09 06:38:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:20,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:22,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772464623] [2024-11-09 06:38:22,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772464623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:22,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:22,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:22,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421039793] [2024-11-09 06:38:22,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:22,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:22,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:22,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:22,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:22,205 INFO L87 Difference]: Start difference. First operand 286 states and 653 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:23,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:23,128 INFO L93 Difference]: Finished difference Result 539 states and 1166 transitions. [2024-11-09 06:38:23,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:38:23,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:23,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:23,132 INFO L225 Difference]: With dead ends: 539 [2024-11-09 06:38:23,132 INFO L226 Difference]: Without dead ends: 537 [2024-11-09 06:38:23,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:38:23,134 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 112 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:23,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 58 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:23,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-09 06:38:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 295. [2024-11-09 06:38:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 293 states have (on average 2.3208191126279862) internal successors, (680), 294 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 680 transitions. [2024-11-09 06:38:23,146 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 680 transitions. Word has length 25 [2024-11-09 06:38:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:23,146 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 680 transitions. [2024-11-09 06:38:23,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 680 transitions. [2024-11-09 06:38:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:23,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:23,148 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:23,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:38:23,148 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:23,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:23,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2085765105, now seen corresponding path program 11 times [2024-11-09 06:38:23,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:23,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107918664] [2024-11-09 06:38:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:24,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:24,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107918664] [2024-11-09 06:38:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107918664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:24,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:24,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:24,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404235334] [2024-11-09 06:38:24,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:24,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:24,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:24,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:24,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:24,334 INFO L87 Difference]: Start difference. First operand 295 states and 680 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:25,091 INFO L93 Difference]: Finished difference Result 531 states and 1128 transitions. [2024-11-09 06:38:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:38:25,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:25,095 INFO L225 Difference]: With dead ends: 531 [2024-11-09 06:38:25,095 INFO L226 Difference]: Without dead ends: 529 [2024-11-09 06:38:25,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:38:25,096 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 122 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:25,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 58 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-09 06:38:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 286. [2024-11-09 06:38:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 284 states have (on average 2.2992957746478875) internal successors, (653), 285 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 653 transitions. [2024-11-09 06:38:25,109 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 653 transitions. Word has length 25 [2024-11-09 06:38:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:25,110 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 653 transitions. [2024-11-09 06:38:25,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 653 transitions. [2024-11-09 06:38:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:25,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:25,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:25,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:38:25,113 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:25,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1275333987, now seen corresponding path program 12 times [2024-11-09 06:38:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:25,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706154601] [2024-11-09 06:38:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:25,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:26,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:26,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706154601] [2024-11-09 06:38:26,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706154601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:26,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:26,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:26,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726356589] [2024-11-09 06:38:26,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:26,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:26,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:26,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:26,376 INFO L87 Difference]: Start difference. First operand 286 states and 653 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:27,090 INFO L93 Difference]: Finished difference Result 473 states and 954 transitions. [2024-11-09 06:38:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:38:27,091 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:27,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:27,094 INFO L225 Difference]: With dead ends: 473 [2024-11-09 06:38:27,094 INFO L226 Difference]: Without dead ends: 471 [2024-11-09 06:38:27,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:38:27,097 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 117 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:27,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 42 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:38:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-09 06:38:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 289. [2024-11-09 06:38:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 287 states have (on average 2.2961672473867596) internal successors, (659), 288 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 659 transitions. [2024-11-09 06:38:27,111 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 659 transitions. Word has length 25 [2024-11-09 06:38:27,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:27,111 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 659 transitions. [2024-11-09 06:38:27,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 659 transitions. [2024-11-09 06:38:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:27,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:27,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:27,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:38:27,113 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:27,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:27,113 INFO L85 PathProgramCache]: Analyzing trace with hash 784899383, now seen corresponding path program 13 times [2024-11-09 06:38:27,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:27,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773295883] [2024-11-09 06:38:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:27,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:28,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:28,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773295883] [2024-11-09 06:38:28,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773295883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:28,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:28,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:28,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973070274] [2024-11-09 06:38:28,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:28,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:28,239 INFO L87 Difference]: Start difference. First operand 289 states and 659 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:29,330 INFO L93 Difference]: Finished difference Result 660 states and 1379 transitions. [2024-11-09 06:38:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:38:29,331 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:29,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:29,335 INFO L225 Difference]: With dead ends: 660 [2024-11-09 06:38:29,335 INFO L226 Difference]: Without dead ends: 658 [2024-11-09 06:38:29,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-09 06:38:29,336 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 159 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:29,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 62 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:38:29,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-09 06:38:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 223. [2024-11-09 06:38:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 221 states have (on average 2.1945701357466065) internal successors, (485), 222 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 485 transitions. [2024-11-09 06:38:29,349 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 485 transitions. Word has length 25 [2024-11-09 06:38:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:29,349 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 485 transitions. [2024-11-09 06:38:29,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:29,350 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 485 transitions. [2024-11-09 06:38:29,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:29,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:29,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:29,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:38:29,351 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:29,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1282803915, now seen corresponding path program 14 times [2024-11-09 06:38:29,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:29,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358163176] [2024-11-09 06:38:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:30,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358163176] [2024-11-09 06:38:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358163176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:30,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:30,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:30,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195875159] [2024-11-09 06:38:30,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:30,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:30,453 INFO L87 Difference]: Start difference. First operand 223 states and 485 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:31,255 INFO L93 Difference]: Finished difference Result 592 states and 1240 transitions. [2024-11-09 06:38:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:38:31,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:31,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:31,259 INFO L225 Difference]: With dead ends: 592 [2024-11-09 06:38:31,259 INFO L226 Difference]: Without dead ends: 590 [2024-11-09 06:38:31,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:38:31,260 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 112 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:31,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 66 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-09 06:38:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 220. [2024-11-09 06:38:31,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 2.18348623853211) internal successors, (476), 219 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 476 transitions. [2024-11-09 06:38:31,272 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 476 transitions. Word has length 25 [2024-11-09 06:38:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:31,272 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 476 transitions. [2024-11-09 06:38:31,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 476 transitions. [2024-11-09 06:38:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:31,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:31,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:31,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:38:31,274 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:31,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:31,274 INFO L85 PathProgramCache]: Analyzing trace with hash 310772535, now seen corresponding path program 15 times [2024-11-09 06:38:31,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:31,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510220381] [2024-11-09 06:38:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:31,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:32,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:32,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510220381] [2024-11-09 06:38:32,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510220381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:32,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:32,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034851775] [2024-11-09 06:38:32,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:32,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:32,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:32,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:32,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:32,307 INFO L87 Difference]: Start difference. First operand 220 states and 476 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:33,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:33,016 INFO L93 Difference]: Finished difference Result 503 states and 1025 transitions. [2024-11-09 06:38:33,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:38:33,017 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:33,020 INFO L225 Difference]: With dead ends: 503 [2024-11-09 06:38:33,020 INFO L226 Difference]: Without dead ends: 501 [2024-11-09 06:38:33,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:38:33,021 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 116 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:33,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 53 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:38:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-09 06:38:33,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 217. [2024-11-09 06:38:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 2.172093023255814) internal successors, (467), 216 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 467 transitions. [2024-11-09 06:38:33,031 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 467 transitions. Word has length 25 [2024-11-09 06:38:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:33,032 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 467 transitions. [2024-11-09 06:38:33,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 467 transitions. [2024-11-09 06:38:33,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:33,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:33,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:33,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:38:33,034 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:33,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1054749459, now seen corresponding path program 16 times [2024-11-09 06:38:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120795744] [2024-11-09 06:38:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:34,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:34,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120795744] [2024-11-09 06:38:34,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120795744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:34,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:34,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:34,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503829162] [2024-11-09 06:38:34,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:34,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:34,203 INFO L87 Difference]: Start difference. First operand 217 states and 467 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:34,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:34,779 INFO L93 Difference]: Finished difference Result 333 states and 652 transitions. [2024-11-09 06:38:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:38:34,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:34,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:34,781 INFO L225 Difference]: With dead ends: 333 [2024-11-09 06:38:34,781 INFO L226 Difference]: Without dead ends: 331 [2024-11-09 06:38:34,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:38:34,782 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 90 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:34,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 42 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:38:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-09 06:38:34,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 214. [2024-11-09 06:38:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 2.1745283018867925) internal successors, (461), 213 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:34,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 461 transitions. [2024-11-09 06:38:34,790 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 461 transitions. Word has length 25 [2024-11-09 06:38:34,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:34,791 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 461 transitions. [2024-11-09 06:38:34,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 461 transitions. [2024-11-09 06:38:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:38:34,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:34,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:34,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:38:34,792 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:34,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1619705589, now seen corresponding path program 17 times [2024-11-09 06:38:34,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:34,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585621479] [2024-11-09 06:38:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:35,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:35,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585621479] [2024-11-09 06:38:35,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585621479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:35,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:35,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:38:35,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545067972] [2024-11-09 06:38:35,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:35,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:38:35,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:35,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:38:35,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:38:35,799 INFO L87 Difference]: Start difference. First operand 214 states and 461 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:36,401 INFO L93 Difference]: Finished difference Result 295 states and 589 transitions. [2024-11-09 06:38:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:38:36,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 06:38:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:36,404 INFO L225 Difference]: With dead ends: 295 [2024-11-09 06:38:36,404 INFO L226 Difference]: Without dead ends: 293 [2024-11-09 06:38:36,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:38:36,405 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 81 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:36,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 25 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:38:36,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-09 06:38:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 178. [2024-11-09 06:38:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 2.2711864406779663) internal successors, (402), 177 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 402 transitions. [2024-11-09 06:38:36,413 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 402 transitions. Word has length 25 [2024-11-09 06:38:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:36,413 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 402 transitions. [2024-11-09 06:38:36,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 402 transitions. [2024-11-09 06:38:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:38:36,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:36,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:36,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:38:36,415 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:36,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1300452592, now seen corresponding path program 1 times [2024-11-09 06:38:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:36,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932056196] [2024-11-09 06:38:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:37,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:37,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932056196] [2024-11-09 06:38:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932056196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:37,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:37,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 06:38:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274509124] [2024-11-09 06:38:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:37,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:38:37,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:37,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:38:37,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:38:37,509 INFO L87 Difference]: Start difference. First operand 178 states and 402 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:38,326 INFO L93 Difference]: Finished difference Result 285 states and 616 transitions. [2024-11-09 06:38:38,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:38:38,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-09 06:38:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:38,328 INFO L225 Difference]: With dead ends: 285 [2024-11-09 06:38:38,328 INFO L226 Difference]: Without dead ends: 259 [2024-11-09 06:38:38,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:38:38,330 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 100 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:38,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 26 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-09 06:38:38,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 202. [2024-11-09 06:38:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 2.2686567164179103) internal successors, (456), 201 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 456 transitions. [2024-11-09 06:38:38,337 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 456 transitions. Word has length 27 [2024-11-09 06:38:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:38,337 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 456 transitions. [2024-11-09 06:38:38,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 456 transitions. [2024-11-09 06:38:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:38:38,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:38,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:38,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:38:38,339 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:38,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1110916274, now seen corresponding path program 2 times [2024-11-09 06:38:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262913494] [2024-11-09 06:38:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:39,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:39,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262913494] [2024-11-09 06:38:39,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262913494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:39,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:39,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 06:38:39,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137314142] [2024-11-09 06:38:39,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:39,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:38:39,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:38:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:38:39,596 INFO L87 Difference]: Start difference. First operand 202 states and 456 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:40,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:40,509 INFO L93 Difference]: Finished difference Result 277 states and 593 transitions. [2024-11-09 06:38:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:38:40,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-09 06:38:40,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:40,511 INFO L225 Difference]: With dead ends: 277 [2024-11-09 06:38:40,511 INFO L226 Difference]: Without dead ends: 253 [2024-11-09 06:38:40,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:38:40,514 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 94 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:40,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 32 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-09 06:38:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 196. [2024-11-09 06:38:40,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.2615384615384615) internal successors, (441), 195 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 441 transitions. [2024-11-09 06:38:40,521 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 441 transitions. Word has length 27 [2024-11-09 06:38:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:40,521 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 441 transitions. [2024-11-09 06:38:40,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 441 transitions. [2024-11-09 06:38:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:38:40,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:40,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:40,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:38:40,523 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:40,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:40,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1210113042, now seen corresponding path program 3 times [2024-11-09 06:38:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:40,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000024969] [2024-11-09 06:38:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:40,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:41,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:41,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000024969] [2024-11-09 06:38:41,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000024969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:41,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:41,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 06:38:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611066195] [2024-11-09 06:38:41,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:41,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:38:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:41,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:38:41,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:38:41,925 INFO L87 Difference]: Start difference. First operand 196 states and 441 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:42,796 INFO L93 Difference]: Finished difference Result 266 states and 576 transitions. [2024-11-09 06:38:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:38:42,796 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-09 06:38:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:42,798 INFO L225 Difference]: With dead ends: 266 [2024-11-09 06:38:42,798 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 06:38:42,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-09 06:38:42,804 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 74 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:42,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 30 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:38:42,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 06:38:42,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 184. [2024-11-09 06:38:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.2459016393442623) internal successors, (411), 183 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 411 transitions. [2024-11-09 06:38:42,822 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 411 transitions. Word has length 27 [2024-11-09 06:38:42,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:42,822 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 411 transitions. [2024-11-09 06:38:42,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:42,823 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 411 transitions. [2024-11-09 06:38:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:38:42,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:42,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:42,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:38:42,828 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:42,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:42,828 INFO L85 PathProgramCache]: Analyzing trace with hash -700974062, now seen corresponding path program 4 times [2024-11-09 06:38:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:42,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875099359] [2024-11-09 06:38:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:42,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:44,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:44,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875099359] [2024-11-09 06:38:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875099359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:44,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:44,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 06:38:44,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305193272] [2024-11-09 06:38:44,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:44,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:38:44,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:38:44,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:38:44,233 INFO L87 Difference]: Start difference. First operand 184 states and 411 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:44,935 INFO L93 Difference]: Finished difference Result 246 states and 529 transitions. [2024-11-09 06:38:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:38:44,935 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-09 06:38:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:44,937 INFO L225 Difference]: With dead ends: 246 [2024-11-09 06:38:44,937 INFO L226 Difference]: Without dead ends: 206 [2024-11-09 06:38:44,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:38:44,938 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:44,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 30 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:38:44,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-09 06:38:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 174. [2024-11-09 06:38:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.277456647398844) internal successors, (394), 173 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 394 transitions. [2024-11-09 06:38:44,944 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 394 transitions. Word has length 27 [2024-11-09 06:38:44,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:44,944 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 394 transitions. [2024-11-09 06:38:44,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:44,944 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 394 transitions. [2024-11-09 06:38:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:38:44,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:44,945 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:44,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:38:44,945 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:38:44,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:44,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1451786770, now seen corresponding path program 5 times [2024-11-09 06:38:44,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:44,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65906396] [2024-11-09 06:38:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:44,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:38:44,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:38:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:38:45,021 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:38:45,022 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:38:45,023 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-09 06:38:45,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-09 06:38:45,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-11-09 06:38:45,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-09 06:38:45,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-09 06:38:45,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-09 06:38:45,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:38:45,033 INFO L407 BasicCegarLoop]: Path program histogram: [17, 5, 1, 1, 1] [2024-11-09 06:38:45,099 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 06:38:45,100 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:38:45,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:38:45 BasicIcfg [2024-11-09 06:38:45,103 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:38:45,104 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:38:45,104 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:38:45,104 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:38:45,105 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:38:03" (3/4) ... [2024-11-09 06:38:45,106 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 06:38:45,190 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:38:45,194 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:38:45,195 INFO L158 Benchmark]: Toolchain (without parser) took 43984.30ms. Allocated memory was 146.8MB in the beginning and 704.6MB in the end (delta: 557.8MB). Free memory was 110.7MB in the beginning and 442.7MB in the end (delta: -332.0MB). Peak memory consumption was 227.4MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,195 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 146.8MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:38:45,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 804.71ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 73.5MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.08ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 70.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,196 INFO L158 Benchmark]: Boogie Preprocessor took 57.33ms. Allocated memory is still 146.8MB. Free memory was 70.4MB in the beginning and 67.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,196 INFO L158 Benchmark]: RCFGBuilder took 953.31ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 67.8MB in the beginning and 140.1MB in the end (delta: -72.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,196 INFO L158 Benchmark]: TraceAbstraction took 41993.27ms. Allocated memory was 192.9MB in the beginning and 704.6MB in the end (delta: 511.7MB). Free memory was 140.1MB in the beginning and 451.1MB in the end (delta: -311.0MB). Peak memory consumption was 200.7MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,196 INFO L158 Benchmark]: Witness Printer took 90.72ms. Allocated memory is still 704.6MB. Free memory was 451.1MB in the beginning and 442.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 06:38:45,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 146.8MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 804.71ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 73.5MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.08ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 70.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.33ms. Allocated memory is still 146.8MB. Free memory was 70.4MB in the beginning and 67.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 953.31ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 67.8MB in the beginning and 140.1MB in the end (delta: -72.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * TraceAbstraction took 41993.27ms. Allocated memory was 192.9MB in the beginning and 704.6MB in the end (delta: 511.7MB). Free memory was 140.1MB in the beginning and 451.1MB in the end (delta: -311.0MB). Peak memory consumption was 200.7MB. Max. memory is 16.1GB. * Witness Printer took 90.72ms. Allocated memory is still 704.6MB. Free memory was 451.1MB in the beginning and 442.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 3887]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L3888] 0 pthread_t t1,t2; [L3950] CALL, EXPR 0 my_drv_init() [L3944] 0 return 0; [L3950] RET, EXPR 0 my_drv_init() [L3950] 0 int ret = my_drv_init(); [L3951] COND TRUE 0 ret==0 [L3952] 0 int probe_ret; [L3953] 0 struct my_data data; [L3954] CALL, EXPR 0 my_drv_probe(&data) [L3920] 0 struct device *d = &data->dev; [L3924] 0 data->shared.a = 0 [L3925] 0 data->shared.b = 0 [L3926] 0 int res = __VERIFIER_nondet_int(); [L3927] COND FALSE 0 !(\read(res)) [L3930] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={5:24}, \old(data)={5:0}, d={5:24}, data={5:0}, res=0, t1=-1, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 1 data->shared.a = 1 VAL [\old(arg)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1=-1, t2=0] [L3911] EXPR 1 data->shared.b [L3911] 1 int lb = data->shared.b; [L3931] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={5:24}, \old(data)={5:0}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1=-1, t2=0] [L3902] 2 struct device *dev = (struct device*)arg; [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 2 data->shared.a = 1 VAL [\old(arg)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3911] EXPR 2 data->shared.b [L3911] 2 int lb = data->shared.b; [L3932] 0 return 0; VAL [\old(arg)={5:24}, \old(data)={5:0}, \result=0, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1=-1, t2=0] [L3914] 2 data->shared.b = lb + 1 VAL [\old(arg)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3917] 2 return 0; [L3954] RET, EXPR 0 my_drv_probe(&data) [L3954] 0 probe_ret = my_drv_probe(&data) [L3955] COND TRUE 0 probe_ret==0 [L3956] CALL 0 my_drv_disconnect(&data) [L3938] 0 void *status; VAL [\old(arg)={5:24}, \old(data)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3914] 1 data->shared.b = lb + 1 VAL [\old(arg)={5:24}, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3917] 1 return 0; [L3939] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\old(arg)={5:24}, \old(data)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3940] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\old(arg)={5:24}, \old(data)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3956] RET 0 my_drv_disconnect(&data) [L3957] EXPR 0 data.shared.a [L3957] CALL 0 ldv_assert(data.shared.a==1) [L3887] COND FALSE 0 !(!expression) VAL [\old(arg)={5:24}, \old(expression)=1, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=1, lb=0, t1=-1, t2=0] [L3957] RET 0 ldv_assert(data.shared.a==1) [L3958] EXPR 0 data.shared.b [L3958] CALL 0 ldv_assert(data.shared.b==2) [L3887] COND TRUE 0 !expression VAL [\old(arg)={5:24}, \old(expression)=0, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, lb=0, t1=-1, t2=0] [L3887] 0 reach_error() VAL [\old(arg)={5:24}, \old(expression)=0, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, lb=0, t1=-1, t2=0] - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3931]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 52 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 41.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2125 SdHoareTripleChecker+Valid, 9.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2125 mSDsluCounter, 913 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 775 mSDsCounter, 314 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10285 IncrementalHoareTripleChecker+Invalid, 10599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 314 mSolverCounterUnsat, 138 mSDtfsCounter, 10285 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=588occurred in iteration=0, InterpolantAutomatonStates: 303, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 24 MinimizatonAttempts, 3156 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 24.2s InterpolantComputationTime, 594 NumberOfCodeBlocks, 594 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 8633 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 06:38:45,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_969868b8-a5b6-4b28-98f2-b8c271d1803e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE