./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:41,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:42,089 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-25 00:01:42,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:42,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:42,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:42,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:42,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:42,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:42,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:42,154 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:42,155 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:42,155 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:42,157 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:01:42,157 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:42,158 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:42,158 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:01:42,159 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:01:42,159 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:42,160 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:01:42,160 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:01:42,161 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:01:42,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-25 00:01:42,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-25 00:01:42,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:42,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:42,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:42,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:42,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:42,165 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-25 00:01:42,166 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-25 00:01:42,167 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-25 00:01:42,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:42,167 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:42,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:01:42,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:42,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:42,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:42,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:42,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:42,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:42,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:42,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:42,171 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:01:42,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:01:42,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:42,172 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:42,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:42,173 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_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 [2023-11-25 00:01:42,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:42,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:42,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:42,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:42,499 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:42,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2023-11-25 00:01:45,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:45,944 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:45,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2023-11-25 00:01:45,964 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/data/d056555ec/9763fe596e624fac8802fae0be1a5a0b/FLAGea797957e [2023-11-25 00:01:45,983 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/data/d056555ec/9763fe596e624fac8802fae0be1a5a0b [2023-11-25 00:01:45,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:45,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:45,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:45,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:45,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:45,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251fdfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45, skipping insertion in model container [2023-11-25 00:01:45,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:46,080 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:46,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:46,534 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:46,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:46,703 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:46,703 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:46,711 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:46,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46 WrapperNode [2023-11-25 00:01:46,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:46,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:46,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:46,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:46,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,810 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 158 [2023-11-25 00:01:46,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:46,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:46,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:46,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:46,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:46,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:46,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:46,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:46,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (1/1) ... [2023-11-25 00:01:46,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:46,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:46,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:46,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d33a90-d155-4144-be17-04970ce02aab/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:01:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-25 00:01:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:01:46,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:01:46,990 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-25 00:01:46,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-25 00:01:46,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-25 00:01:46,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-25 00:01:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-25 00:01:46,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-25 00:01:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-25 00:01:46,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-25 00:01:46,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:01:46,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-25 00:01:46,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:46,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:46,995 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-25 00:01:47,157 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:47,159 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:47,608 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:47,816 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:47,816 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:47,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:47 BoogieIcfgContainer [2023-11-25 00:01:47,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:47,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:47,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:47,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:47,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:45" (1/3) ... [2023-11-25 00:01:47,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6529f2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:47, skipping insertion in model container [2023-11-25 00:01:47,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:46" (2/3) ... [2023-11-25 00:01:47,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6529f2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:47, skipping insertion in model container [2023-11-25 00:01:47,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:47" (3/3) ... [2023-11-25 00:01:47,826 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_pso.opt_tso.opt.i [2023-11-25 00:01:47,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:47,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-25 00:01:47,843 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-25 00:01:47,908 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-25 00:01:47,942 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 67 transitions, 150 flow [2023-11-25 00:01:50,871 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51049 states, 51036 states have (on average 4.494258954463516) internal successors, (229369), 51048 states have internal predecessors, (229369), 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) [2023-11-25 00:01:50,896 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:50,904 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@e73bfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:50,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-25 00:01:51,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 51049 states, 51036 states have (on average 4.494258954463516) internal successors, (229369), 51048 states have internal predecessors, (229369), 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) [2023-11-25 00:01:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-25 00:01:51,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:51,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-25 00:01:51,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:01:51,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:51,152 INFO L85 PathProgramCache]: Analyzing trace with hash 13690, now seen corresponding path program 1 times [2023-11-25 00:01:51,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:51,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610031113] [2023-11-25 00:01:51,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:51,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:51,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:51,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610031113] [2023-11-25 00:01:51,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610031113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:51,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:51,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:01:51,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570123774] [2023-11-25 00:01:51,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:51,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:51,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:51,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:51,716 INFO L87 Difference]: Start difference. First operand has 51049 states, 51036 states have (on average 4.494258954463516) internal successors, (229369), 51048 states have internal predecessors, (229369), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-25 00:01:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:53,548 INFO L93 Difference]: Finished difference Result 47618 states and 207171 transitions. [2023-11-25 00:01:53,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:53,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-25 00:01:53,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:54,398 INFO L225 Difference]: With dead ends: 47618 [2023-11-25 00:01:54,399 INFO L226 Difference]: Without dead ends: 47618 [2023-11-25 00:01:54,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:54,404 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 52 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:54,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 47 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:01:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47618 states. [2023-11-25 00:01:56,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47618 to 47618. [2023-11-25 00:01:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47618 states, 47606 states have (on average 4.35178338864849) internal successors, (207171), 47617 states have internal predecessors, (207171), 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) [2023-11-25 00:01:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47618 states to 47618 states and 207171 transitions. [2023-11-25 00:01:57,990 INFO L78 Accepts]: Start accepts. Automaton has 47618 states and 207171 transitions. Word has length 2 [2023-11-25 00:01:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:57,990 INFO L495 AbstractCegarLoop]: Abstraction has 47618 states and 207171 transitions. [2023-11-25 00:01:57,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-25 00:01:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 47618 states and 207171 transitions. [2023-11-25 00:01:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-25 00:01:57,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:57,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-25 00:01:57,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:01:57,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:01:57,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:57,998 INFO L85 PathProgramCache]: Analyzing trace with hash 13691, now seen corresponding path program 1 times [2023-11-25 00:01:57,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:57,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908057638] [2023-11-25 00:01:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:57,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:58,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:58,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908057638] [2023-11-25 00:01:58,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908057638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:58,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:58,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:01:58,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793597501] [2023-11-25 00:01:58,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:58,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:58,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:58,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:58,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:58,154 INFO L87 Difference]: Start difference. First operand 47618 states and 207171 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-25 00:01:59,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:59,335 INFO L93 Difference]: Finished difference Result 47617 states and 207170 transitions. [2023-11-25 00:01:59,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:59,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-25 00:01:59,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:59,815 INFO L225 Difference]: With dead ends: 47617 [2023-11-25 00:01:59,815 INFO L226 Difference]: Without dead ends: 47617 [2023-11-25 00:01:59,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:59,822 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 51 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:59,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 48 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:00,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47617 states. [2023-11-25 00:02:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47617 to 47617. [2023-11-25 00:02:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47617 states, 47606 states have (on average 4.351762382892913) internal successors, (207170), 47616 states have internal predecessors, (207170), 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) [2023-11-25 00:02:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47617 states to 47617 states and 207170 transitions. [2023-11-25 00:02:02,718 INFO L78 Accepts]: Start accepts. Automaton has 47617 states and 207170 transitions. Word has length 2 [2023-11-25 00:02:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:02,718 INFO L495 AbstractCegarLoop]: Abstraction has 47617 states and 207170 transitions. [2023-11-25 00:02:02,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-25 00:02:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 47617 states and 207170 transitions. [2023-11-25 00:02:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-25 00:02:02,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:02,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-25 00:02:02,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:02:02,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:02,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash 408258480, now seen corresponding path program 1 times [2023-11-25 00:02:02,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:02,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25383060] [2023-11-25 00:02:02,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:02,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:02,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:02,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25383060] [2023-11-25 00:02:02,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25383060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:02,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:02,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:02,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496890922] [2023-11-25 00:02:02,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:02,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:02,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:02,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:02,796 INFO L87 Difference]: Start difference. First operand 47617 states and 207170 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-25 00:02:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:03,870 INFO L93 Difference]: Finished difference Result 47610 states and 207157 transitions. [2023-11-25 00:02:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-25 00:02:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:04,146 INFO L225 Difference]: With dead ends: 47610 [2023-11-25 00:02:04,146 INFO L226 Difference]: Without dead ends: 47610 [2023-11-25 00:02:04,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:04,148 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 48 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:04,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 52 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:04,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47610 states. [2023-11-25 00:02:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47610 to 47610. [2023-11-25 00:02:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47610 states, 47600 states have (on average 4.35203781512605) internal successors, (207157), 47609 states have internal predecessors, (207157), 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) [2023-11-25 00:02:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47610 states to 47610 states and 207157 transitions. [2023-11-25 00:02:07,100 INFO L78 Accepts]: Start accepts. Automaton has 47610 states and 207157 transitions. Word has length 5 [2023-11-25 00:02:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:07,100 INFO L495 AbstractCegarLoop]: Abstraction has 47610 states and 207157 transitions. [2023-11-25 00:02:07,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-25 00:02:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 47610 states and 207157 transitions. [2023-11-25 00:02:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-25 00:02:07,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:07,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-25 00:02:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:02:07,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:07,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash 408258481, now seen corresponding path program 1 times [2023-11-25 00:02:07,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:07,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751588297] [2023-11-25 00:02:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:07,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:07,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:07,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751588297] [2023-11-25 00:02:07,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751588297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:07,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:07,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:07,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099937373] [2023-11-25 00:02:07,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:07,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:07,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:07,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:07,263 INFO L87 Difference]: Start difference. First operand 47610 states and 207157 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-25 00:02:07,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:07,756 INFO L93 Difference]: Finished difference Result 47603 states and 207144 transitions. [2023-11-25 00:02:07,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:07,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-25 00:02:07,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:07,995 INFO L225 Difference]: With dead ends: 47603 [2023-11-25 00:02:07,996 INFO L226 Difference]: Without dead ends: 47603 [2023-11-25 00:02:07,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:07,997 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 47 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:07,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 53 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:08,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47603 states. [2023-11-25 00:02:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47603 to 47603. [2023-11-25 00:02:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47603 states, 47594 states have (on average 4.352313316804639) internal successors, (207144), 47602 states have internal predecessors, (207144), 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) [2023-11-25 00:02:10,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47603 states to 47603 states and 207144 transitions. [2023-11-25 00:02:10,880 INFO L78 Accepts]: Start accepts. Automaton has 47603 states and 207144 transitions. Word has length 5 [2023-11-25 00:02:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:10,880 INFO L495 AbstractCegarLoop]: Abstraction has 47603 states and 207144 transitions. [2023-11-25 00:02:10,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-25 00:02:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 47603 states and 207144 transitions. [2023-11-25 00:02:10,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:02:10,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:10,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:10,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:02:10,882 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:10,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:10,882 INFO L85 PathProgramCache]: Analyzing trace with hash -918580800, now seen corresponding path program 1 times [2023-11-25 00:02:10,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:10,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938042947] [2023-11-25 00:02:10,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:10,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:10,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:10,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938042947] [2023-11-25 00:02:10,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938042947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:10,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:10,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817549221] [2023-11-25 00:02:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:10,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:10,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:10,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:10,950 INFO L87 Difference]: Start difference. First operand 47603 states and 207144 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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) [2023-11-25 00:02:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:11,507 INFO L93 Difference]: Finished difference Result 47554 states and 207011 transitions. [2023-11-25 00:02:11,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:11,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2023-11-25 00:02:11,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:11,940 INFO L225 Difference]: With dead ends: 47554 [2023-11-25 00:02:11,940 INFO L226 Difference]: Without dead ends: 47554 [2023-11-25 00:02:11,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:11,945 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:11,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 57 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47554 states. [2023-11-25 00:02:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47554 to 47554. [2023-11-25 00:02:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47554 states, 47546 states have (on average 4.3539098977832) internal successors, (207011), 47553 states have internal predecessors, (207011), 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) [2023-11-25 00:02:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47554 states to 47554 states and 207011 transitions. [2023-11-25 00:02:15,192 INFO L78 Accepts]: Start accepts. Automaton has 47554 states and 207011 transitions. Word has length 8 [2023-11-25 00:02:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:15,193 INFO L495 AbstractCegarLoop]: Abstraction has 47554 states and 207011 transitions. [2023-11-25 00:02:15,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2023-11-25 00:02:15,193 INFO L276 IsEmpty]: Start isEmpty. Operand 47554 states and 207011 transitions. [2023-11-25 00:02:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:02:15,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:15,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:15,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:02:15,195 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:15,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash -918580799, now seen corresponding path program 1 times [2023-11-25 00:02:15,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:15,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298228246] [2023-11-25 00:02:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:15,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:15,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:15,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298228246] [2023-11-25 00:02:15,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298228246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:15,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:15,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:15,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785243704] [2023-11-25 00:02:15,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:15,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:15,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:15,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:15,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:15,283 INFO L87 Difference]: Start difference. First operand 47554 states and 207011 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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) [2023-11-25 00:02:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:15,770 INFO L93 Difference]: Finished difference Result 47505 states and 206878 transitions. [2023-11-25 00:02:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:15,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2023-11-25 00:02:15,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:16,088 INFO L225 Difference]: With dead ends: 47505 [2023-11-25 00:02:16,089 INFO L226 Difference]: Without dead ends: 47505 [2023-11-25 00:02:16,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:16,090 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:16,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 58 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47505 states. [2023-11-25 00:02:18,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47505 to 47505. [2023-11-25 00:02:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47505 states, 47498 states have (on average 4.3555097056718175) internal successors, (206878), 47504 states have internal predecessors, (206878), 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) [2023-11-25 00:02:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47505 states to 47505 states and 206878 transitions. [2023-11-25 00:02:18,937 INFO L78 Accepts]: Start accepts. Automaton has 47505 states and 206878 transitions. Word has length 8 [2023-11-25 00:02:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:18,937 INFO L495 AbstractCegarLoop]: Abstraction has 47505 states and 206878 transitions. [2023-11-25 00:02:18,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2023-11-25 00:02:18,938 INFO L276 IsEmpty]: Start isEmpty. Operand 47505 states and 206878 transitions. [2023-11-25 00:02:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-25 00:02:18,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:18,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:18,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-25 00:02:18,940 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:18,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2091419164, now seen corresponding path program 1 times [2023-11-25 00:02:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:18,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669287742] [2023-11-25 00:02:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:19,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:19,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669287742] [2023-11-25 00:02:19,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669287742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:19,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:19,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:19,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922376157] [2023-11-25 00:02:19,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:19,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:19,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:19,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:19,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:19,004 INFO L87 Difference]: Start difference. First operand 47505 states and 206878 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-25 00:02:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:19,423 INFO L93 Difference]: Finished difference Result 47162 states and 205653 transitions. [2023-11-25 00:02:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:19,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-25 00:02:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:19,724 INFO L225 Difference]: With dead ends: 47162 [2023-11-25 00:02:19,724 INFO L226 Difference]: Without dead ends: 47162 [2023-11-25 00:02:19,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:19,729 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 40 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:19,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 61 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:19,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47162 states. [2023-11-25 00:02:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47162 to 47162. [2023-11-25 00:02:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47162 states, 47156 states have (on average 4.361120536092968) internal successors, (205653), 47161 states have internal predecessors, (205653), 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) [2023-11-25 00:02:22,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47162 states to 47162 states and 205653 transitions. [2023-11-25 00:02:22,189 INFO L78 Accepts]: Start accepts. Automaton has 47162 states and 205653 transitions. Word has length 11 [2023-11-25 00:02:22,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:22,189 INFO L495 AbstractCegarLoop]: Abstraction has 47162 states and 205653 transitions. [2023-11-25 00:02:22,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-25 00:02:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 47162 states and 205653 transitions. [2023-11-25 00:02:22,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-25 00:02:22,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:22,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:22,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:02:22,192 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:22,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:22,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2091419165, now seen corresponding path program 1 times [2023-11-25 00:02:22,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:22,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764922162] [2023-11-25 00:02:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:22,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:23,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:23,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764922162] [2023-11-25 00:02:23,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764922162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:23,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:23,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:23,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416608537] [2023-11-25 00:02:23,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:23,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:23,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:23,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:23,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:23,041 INFO L87 Difference]: Start difference. First operand 47162 states and 205653 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-25 00:02:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:23,545 INFO L93 Difference]: Finished difference Result 46819 states and 204428 transitions. [2023-11-25 00:02:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:23,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-25 00:02:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:23,748 INFO L225 Difference]: With dead ends: 46819 [2023-11-25 00:02:23,748 INFO L226 Difference]: Without dead ends: 46819 [2023-11-25 00:02:23,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:23,749 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 39 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:23,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46819 states. [2023-11-25 00:02:25,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46819 to 46819. [2023-11-25 00:02:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46819 states, 46814 states have (on average 4.366813346434827) internal successors, (204428), 46818 states have internal predecessors, (204428), 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) [2023-11-25 00:02:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46819 states to 46819 states and 204428 transitions. [2023-11-25 00:02:25,737 INFO L78 Accepts]: Start accepts. Automaton has 46819 states and 204428 transitions. Word has length 11 [2023-11-25 00:02:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:25,737 INFO L495 AbstractCegarLoop]: Abstraction has 46819 states and 204428 transitions. [2023-11-25 00:02:25,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-25 00:02:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 46819 states and 204428 transitions. [2023-11-25 00:02:25,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-25 00:02:25,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:25,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:25,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-25 00:02:25,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-25 00:02:25,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1621828629, now seen corresponding path program 1 times [2023-11-25 00:02:25,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:25,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397065427] [2023-11-25 00:02:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:25,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:02:25,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:25,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397065427] [2023-11-25 00:02:25,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397065427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:25,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:25,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:02:25,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969309883] [2023-11-25 00:02:25,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:25,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:25,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:25,905 INFO L87 Difference]: Start difference. First operand 46819 states and 204428 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-25 00:02:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:27,083 INFO L93 Difference]: Finished difference Result 42017 states and 182819 transitions. [2023-11-25 00:02:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2023-11-25 00:02:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:27,392 INFO L225 Difference]: With dead ends: 42017 [2023-11-25 00:02:27,392 INFO L226 Difference]: Without dead ends: 41331 [2023-11-25 00:02:27,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:27,393 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 29 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:27,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 53 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41331 states. [2023-11-25 00:02:29,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41331 to 41331.