./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --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 c12b3d893de05137a4e7e0aa006fe67a43cc9e3d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:50:15,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:50:15,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:50:15,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:50:15,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:50:15,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:50:15,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:50:15,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:50:15,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:50:15,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:50:15,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:50:15,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:50:15,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:50:15,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:50:15,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:50:15,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:50:15,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:50:15,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:50:15,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:50:15,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:50:15,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:50:15,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:50:15,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:50:15,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:50:15,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:50:15,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:50:15,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:50:15,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:50:15,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:50:15,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:50:15,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:50:15,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:50:15,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:50:15,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:50:15,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:50:15,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:50:15,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:50:15,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:50:15,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:50:15,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:50:15,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:50:15,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-13 07:50:15,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:50:15,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:50:15,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:50:15,250 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:50:15,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:50:15,250 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:50:15,251 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:50:15,251 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:50:15,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:50:15,251 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:50:15,253 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:50:15,253 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:50:15,254 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:50:15,254 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:50:15,254 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:50:15,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 07:50:15,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 07:50:15,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:50:15,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:50:15,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:50:15,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:50:15,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:50:15,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:50:15,258 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 07:50:15,258 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 07:50:15,258 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 07:50:15,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:50:15,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:50:15,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:50:15,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:50:15,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:50:15,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:50:15,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:50:15,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:50:15,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:50:15,264 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:50:15,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:50:15,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:50:15,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:50:15,265 INFO L138 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_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12b3d893de05137a4e7e0aa006fe67a43cc9e3d [2021-10-13 07:50:15,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:50:15,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:50:15,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:50:15,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:50:15,694 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:50:15,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c [2021-10-13 07:50:15,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/data/d9b173c0b/6e22611fba454577b264c0b6a0e59947/FLAG75905ca64 [2021-10-13 07:50:16,609 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:50:16,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c [2021-10-13 07:50:16,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/data/d9b173c0b/6e22611fba454577b264c0b6a0e59947/FLAG75905ca64 [2021-10-13 07:50:16,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/data/d9b173c0b/6e22611fba454577b264c0b6a0e59947 [2021-10-13 07:50:16,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:50:16,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:50:16,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:50:16,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:50:16,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:50:16,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:50:16" (1/1) ... [2021-10-13 07:50:16,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d891a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:16, skipping insertion in model container [2021-10-13 07:50:16,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:50:16" (1/1) ... [2021-10-13 07:50:16,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:50:16,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:50:17,128 WARN L228 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_902da45b-a912-4da2-9288-1be6270dc715/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c[2073,2086] [2021-10-13 07:50:17,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:50:17,424 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:50:17,456 WARN L228 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_902da45b-a912-4da2-9288-1be6270dc715/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c[2073,2086] [2021-10-13 07:50:17,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:50:17,646 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:50:17,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17 WrapperNode [2021-10-13 07:50:17,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:50:17,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:50:17,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:50:17,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:50:17,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:50:17,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:50:17,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:50:17,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:50:17,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:18,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:18,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:18,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:18,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:50:18,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:50:18,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:50:18,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:50:18,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:18,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:50:18,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:50:18,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:50:18,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:50:18,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:50:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:50:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:50:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:50:18,875 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,879 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,887 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,898 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,914 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,920 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,928 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,939 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,947 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,949 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,953 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,957 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,961 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,971 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,975 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,980 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,984 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,989 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,992 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:18,998 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,005 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,010 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,015 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,017 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,021 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,026 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,030 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,035 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,039 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,046 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,050 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,055 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,059 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,062 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,065 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,068 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,070 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,076 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,079 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,083 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,085 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,090 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:19,095 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:50:21,427 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1271: assume false; [2021-10-13 07:50:21,427 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1272: assume !false; [2021-10-13 07:50:21,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-13 07:50:21,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-13 07:50:21,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1230: assume !false; [2021-10-13 07:50:21,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##287: assume false; [2021-10-13 07:50:21,429 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##288: assume !false; [2021-10-13 07:50:21,429 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1229: assume false; [2021-10-13 07:50:21,429 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1210: assume false; [2021-10-13 07:50:21,429 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1211: assume !false; [2021-10-13 07:50:21,430 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##319: assume false; [2021-10-13 07:50:21,430 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##320: assume !false; [2021-10-13 07:50:21,430 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1160: assume !false; [2021-10-13 07:50:21,430 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1159: assume false; [2021-10-13 07:50:21,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##371: assume false; [2021-10-13 07:50:21,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##372: assume !false; [2021-10-13 07:50:21,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1108: assume false; [2021-10-13 07:50:21,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1109: assume !false; [2021-10-13 07:50:21,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##346: assume false; [2021-10-13 07:50:21,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##347: assume !false; [2021-10-13 07:50:21,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume false; [2021-10-13 07:50:21,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##417: assume !false; [2021-10-13 07:50:21,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1050: assume !false; [2021-10-13 07:50:21,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res := 0; [2021-10-13 07:50:21,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1049: assume false; [2021-10-13 07:50:21,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1003: assume false; [2021-10-13 07:50:21,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1004: assume !false; [2021-10-13 07:50:21,434 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##461: assume !false; [2021-10-13 07:50:21,434 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##460: assume false; [2021-10-13 07:50:21,434 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##487: assume !false; [2021-10-13 07:50:21,434 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##486: assume false; [2021-10-13 07:50:21,434 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##526: assume !false; [2021-10-13 07:50:21,435 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##525: assume false; [2021-10-13 07:50:21,435 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume !false; [2021-10-13 07:50:21,435 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume false; [2021-10-13 07:50:21,435 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2021-10-13 07:50:21,436 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2021-10-13 07:50:21,436 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2021-10-13 07:50:21,436 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2021-10-13 07:50:21,436 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-10-13 07:50:21,437 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-10-13 07:50:21,437 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##573: assume !false; [2021-10-13 07:50:21,437 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##572: assume false; [2021-10-13 07:50:21,437 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##685: assume !false; [2021-10-13 07:50:21,437 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume false; [2021-10-13 07:50:21,438 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2021-10-13 07:50:21,438 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2021-10-13 07:50:21,438 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume !false; [2021-10-13 07:50:21,438 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##638: assume false; [2021-10-13 07:50:21,439 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1612: assume false; [2021-10-13 07:50:21,439 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1613: assume !false; [2021-10-13 07:50:21,439 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##757: assume !false; [2021-10-13 07:50:21,439 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##756: assume false; [2021-10-13 07:50:21,440 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##717: assume !false; [2021-10-13 07:50:21,440 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##716: assume false; [2021-10-13 07:50:21,440 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1506: assume false; [2021-10-13 07:50:21,440 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1507: assume !false; [2021-10-13 07:50:21,441 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1564: assume false; [2021-10-13 07:50:21,441 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1565: assume !false; [2021-10-13 07:50:21,441 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##856: assume false; [2021-10-13 07:50:21,441 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##857: assume !false; [2021-10-13 07:50:21,441 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##801: assume false; [2021-10-13 07:50:21,442 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##802: assume !false; [2021-10-13 07:50:21,442 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##832: assume !false; [2021-10-13 07:50:21,442 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##831: assume false; [2021-10-13 07:50:21,442 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1426: assume false; [2021-10-13 07:50:21,443 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1427: assume !false; [2021-10-13 07:50:21,443 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1476: assume false; [2021-10-13 07:50:21,443 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1477: assume !false; [2021-10-13 07:50:21,443 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1398: assume false; [2021-10-13 07:50:21,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1399: assume !false; [2021-10-13 07:50:21,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##961: assume !false; [2021-10-13 07:50:21,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##960: assume false; [2021-10-13 07:50:21,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##909: assume false; [2021-10-13 07:50:21,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##910: assume !false; [2021-10-13 07:50:21,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1301: assume false; [2021-10-13 07:50:21,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1302: assume !false; [2021-10-13 07:50:21,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##188: assume !false; [2021-10-13 07:50:21,445 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume false; [2021-10-13 07:50:21,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume false; [2021-10-13 07:50:21,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume !false; [2021-10-13 07:50:21,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1354: assume false; [2021-10-13 07:50:21,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1355: assume !false; [2021-10-13 07:50:21,446 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1341: assume false; [2021-10-13 07:50:21,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1342: assume !false; [2021-10-13 07:50:21,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume false; [2021-10-13 07:50:21,447 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !false; [2021-10-13 07:50:24,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:50:24,800 INFO L299 CfgBuilder]: Removed 553 assume(true) statements. [2021-10-13 07:50:24,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:50:24 BoogieIcfgContainer [2021-10-13 07:50:24,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:50:24,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:50:24,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:50:24,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:50:24,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:50:16" (1/3) ... [2021-10-13 07:50:24,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac03a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:50:24, skipping insertion in model container [2021-10-13 07:50:24,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (2/3) ... [2021-10-13 07:50:24,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac03a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:50:24, skipping insertion in model container [2021-10-13 07:50:24,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:50:24" (3/3) ... [2021-10-13 07:50:24,816 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-2.c [2021-10-13 07:50:24,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:50:24,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 103 error locations. [2021-10-13 07:50:24,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:50:24,879 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:50:24,880 INFO L340 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2021-10-13 07:50:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 777 states, 673 states have (on average 1.7384843982169391) internal successors, (1170), 776 states have internal predecessors, (1170), 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) [2021-10-13 07:50:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 07:50:24,931 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:24,932 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 07:50:24,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:24,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:24,940 INFO L82 PathProgramCache]: Analyzing trace with hash 140849178, now seen corresponding path program 1 times [2021-10-13 07:50:24,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:24,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567230112] [2021-10-13 07:50:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:24,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:25,186 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:25,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567230112] [2021-10-13 07:50:25,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567230112] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:25,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:25,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:25,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958330191] [2021-10-13 07:50:25,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:25,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:25,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:25,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,223 INFO L87 Difference]: Start difference. First operand has 777 states, 673 states have (on average 1.7384843982169391) internal successors, (1170), 776 states have internal predecessors, (1170), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 07:50:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:25,398 INFO L93 Difference]: Finished difference Result 780 states and 1068 transitions. [2021-10-13 07:50:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-13 07:50:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:25,424 INFO L225 Difference]: With dead ends: 780 [2021-10-13 07:50:25,425 INFO L226 Difference]: Without dead ends: 778 [2021-10-13 07:50:25,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2021-10-13 07:50:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 776. [2021-10-13 07:50:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 673 states have (on average 1.5824665676077265) internal successors, (1065), 775 states have internal predecessors, (1065), 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) [2021-10-13 07:50:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1065 transitions. [2021-10-13 07:50:25,525 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1065 transitions. Word has length 4 [2021-10-13 07:50:25,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:25,525 INFO L470 AbstractCegarLoop]: Abstraction has 776 states and 1065 transitions. [2021-10-13 07:50:25,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 07:50:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1065 transitions. [2021-10-13 07:50:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 07:50:25,527 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:25,527 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 07:50:25,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:50:25,528 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:25,529 INFO L82 PathProgramCache]: Analyzing trace with hash 2002912693, now seen corresponding path program 1 times [2021-10-13 07:50:25,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:25,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806673382] [2021-10-13 07:50:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:25,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:25,621 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:25,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806673382] [2021-10-13 07:50:25,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806673382] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:25,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:25,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:25,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040369958] [2021-10-13 07:50:25,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:25,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:25,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:25,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,627 INFO L87 Difference]: Start difference. First operand 776 states and 1065 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-13 07:50:25,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:25,805 INFO L93 Difference]: Finished difference Result 981 states and 1329 transitions. [2021-10-13 07:50:25,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:25,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-13 07:50:25,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:25,816 INFO L225 Difference]: With dead ends: 981 [2021-10-13 07:50:25,816 INFO L226 Difference]: Without dead ends: 981 [2021-10-13 07:50:25,817 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2021-10-13 07:50:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 911. [2021-10-13 07:50:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 820 states have (on average 1.5719512195121952) internal successors, (1289), 910 states have internal predecessors, (1289), 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) [2021-10-13 07:50:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1289 transitions. [2021-10-13 07:50:25,869 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1289 transitions. Word has length 6 [2021-10-13 07:50:25,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:25,869 INFO L470 AbstractCegarLoop]: Abstraction has 911 states and 1289 transitions. [2021-10-13 07:50:25,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-13 07:50:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1289 transitions. [2021-10-13 07:50:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:50:25,871 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:25,871 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:25,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:50:25,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:25,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:25,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1968648461, now seen corresponding path program 1 times [2021-10-13 07:50:25,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:25,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94423195] [2021-10-13 07:50:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:25,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:25,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:25,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94423195] [2021-10-13 07:50:25,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94423195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:25,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:25,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 07:50:25,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112431432] [2021-10-13 07:50:25,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:25,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,994 INFO L87 Difference]: Start difference. First operand 911 states and 1289 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-13 07:50:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:26,073 INFO L93 Difference]: Finished difference Result 910 states and 1288 transitions. [2021-10-13 07:50:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-13 07:50:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:26,083 INFO L225 Difference]: With dead ends: 910 [2021-10-13 07:50:26,084 INFO L226 Difference]: Without dead ends: 908 [2021-10-13 07:50:26,084 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2021-10-13 07:50:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 902. [2021-10-13 07:50:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 812 states have (on average 1.561576354679803) internal successors, (1268), 901 states have internal predecessors, (1268), 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) [2021-10-13 07:50:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1268 transitions. [2021-10-13 07:50:26,121 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1268 transitions. Word has length 7 [2021-10-13 07:50:26,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:26,121 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1268 transitions. [2021-10-13 07:50:26,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-13 07:50:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1268 transitions. [2021-10-13 07:50:26,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:50:26,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:26,124 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:26,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:50:26,125 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:26,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:26,127 INFO L82 PathProgramCache]: Analyzing trace with hash 162903831, now seen corresponding path program 1 times [2021-10-13 07:50:26,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:26,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638875098] [2021-10-13 07:50:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:26,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:26,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:26,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638875098] [2021-10-13 07:50:26,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638875098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:26,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:26,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:26,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899899331] [2021-10-13 07:50:26,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:26,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:26,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:26,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:26,280 INFO L87 Difference]: Start difference. First operand 902 states and 1268 transitions. 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) [2021-10-13 07:50:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:26,847 INFO L93 Difference]: Finished difference Result 892 states and 1278 transitions. [2021-10-13 07:50:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:26,853 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 [2021-10-13 07:50:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:26,860 INFO L225 Difference]: With dead ends: 892 [2021-10-13 07:50:26,860 INFO L226 Difference]: Without dead ends: 892 [2021-10-13 07:50:26,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-10-13 07:50:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 890. [2021-10-13 07:50:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 836 states have (on average 1.527511961722488) internal successors, (1277), 889 states have internal predecessors, (1277), 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) [2021-10-13 07:50:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1277 transitions. [2021-10-13 07:50:26,889 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1277 transitions. Word has length 8 [2021-10-13 07:50:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:26,890 INFO L470 AbstractCegarLoop]: Abstraction has 890 states and 1277 transitions. [2021-10-13 07:50:26,890 INFO L471 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) [2021-10-13 07:50:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1277 transitions. [2021-10-13 07:50:26,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:50:26,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:26,895 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:26,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:50:26,895 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:26,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:26,896 INFO L82 PathProgramCache]: Analyzing trace with hash 755060775, now seen corresponding path program 1 times [2021-10-13 07:50:26,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:26,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342099202] [2021-10-13 07:50:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:26,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:26,997 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:26,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342099202] [2021-10-13 07:50:26,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342099202] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:26,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:26,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:26,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803805545] [2021-10-13 07:50:26,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:26,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:27,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:27,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:27,001 INFO L87 Difference]: Start difference. First operand 890 states and 1277 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 07:50:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:27,051 INFO L93 Difference]: Finished difference Result 819 states and 1157 transitions. [2021-10-13 07:50:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:27,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-10-13 07:50:27,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:27,057 INFO L225 Difference]: With dead ends: 819 [2021-10-13 07:50:27,058 INFO L226 Difference]: Without dead ends: 819 [2021-10-13 07:50:27,058 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2021-10-13 07:50:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 719. [2021-10-13 07:50:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 677 states have (on average 1.5140324963072378) internal successors, (1025), 718 states have internal predecessors, (1025), 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) [2021-10-13 07:50:27,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1025 transitions. [2021-10-13 07:50:27,079 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1025 transitions. Word has length 9 [2021-10-13 07:50:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:27,080 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 1025 transitions. [2021-10-13 07:50:27,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 07:50:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1025 transitions. [2021-10-13 07:50:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:50:27,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:27,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:27,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:50:27,082 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:27,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:27,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1571268316, now seen corresponding path program 1 times [2021-10-13 07:50:27,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:27,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439935903] [2021-10-13 07:50:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:27,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:27,109 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:27,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439935903] [2021-10-13 07:50:27,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439935903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:27,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:27,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:27,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984365842] [2021-10-13 07:50:27,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:27,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:27,112 INFO L87 Difference]: Start difference. First operand 719 states and 1025 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2021-10-13 07:50:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:27,434 INFO L93 Difference]: Finished difference Result 722 states and 1027 transitions. [2021-10-13 07:50:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:27,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2021-10-13 07:50:27,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:27,440 INFO L225 Difference]: With dead ends: 722 [2021-10-13 07:50:27,440 INFO L226 Difference]: Without dead ends: 719 [2021-10-13 07:50:27,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:27,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-10-13 07:50:27,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2021-10-13 07:50:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 677 states have (on average 1.5125553914327918) internal successors, (1024), 718 states have internal predecessors, (1024), 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) [2021-10-13 07:50:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1024 transitions. [2021-10-13 07:50:27,461 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1024 transitions. Word has length 10 [2021-10-13 07:50:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:27,462 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 1024 transitions. [2021-10-13 07:50:27,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2021-10-13 07:50:27,462 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1024 transitions. [2021-10-13 07:50:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:50:27,464 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:27,464 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:27,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:50:27,464 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:27,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:27,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1943953341, now seen corresponding path program 1 times [2021-10-13 07:50:27,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:27,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978666827] [2021-10-13 07:50:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:27,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:27,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:27,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:27,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978666827] [2021-10-13 07:50:27,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978666827] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:27,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:27,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:27,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114480180] [2021-10-13 07:50:27,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:27,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:27,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:27,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:27,504 INFO L87 Difference]: Start difference. First operand 719 states and 1024 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-13 07:50:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:27,961 INFO L93 Difference]: Finished difference Result 1004 states and 1405 transitions. [2021-10-13 07:50:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:27,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-10-13 07:50:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:27,969 INFO L225 Difference]: With dead ends: 1004 [2021-10-13 07:50:27,969 INFO L226 Difference]: Without dead ends: 1004 [2021-10-13 07:50:27,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2021-10-13 07:50:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 861. [2021-10-13 07:50:27,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 819 states have (on average 1.5115995115995116) internal successors, (1238), 860 states have internal predecessors, (1238), 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) [2021-10-13 07:50:27,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1238 transitions. [2021-10-13 07:50:27,997 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1238 transitions. Word has length 12 [2021-10-13 07:50:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:27,997 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1238 transitions. [2021-10-13 07:50:27,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-13 07:50:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1238 transitions. [2021-10-13 07:50:27,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:50:27,999 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:27,999 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:27,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:50:28,000 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:28,000 INFO L82 PathProgramCache]: Analyzing trace with hash -140666835, now seen corresponding path program 1 times [2021-10-13 07:50:28,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:28,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331177037] [2021-10-13 07:50:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:28,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:28,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:28,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331177037] [2021-10-13 07:50:28,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331177037] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:28,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:28,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:28,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777617990] [2021-10-13 07:50:28,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:28,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:28,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:28,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:28,047 INFO L87 Difference]: Start difference. First operand 861 states and 1238 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-13 07:50:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:28,446 INFO L93 Difference]: Finished difference Result 745 states and 1048 transitions. [2021-10-13 07:50:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-10-13 07:50:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:28,452 INFO L225 Difference]: With dead ends: 745 [2021-10-13 07:50:28,452 INFO L226 Difference]: Without dead ends: 745 [2021-10-13 07:50:28,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:28,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-10-13 07:50:28,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 687. [2021-10-13 07:50:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 667 states have (on average 1.4422788605697152) internal successors, (962), 686 states have internal predecessors, (962), 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) [2021-10-13 07:50:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 962 transitions. [2021-10-13 07:50:28,475 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 962 transitions. Word has length 13 [2021-10-13 07:50:28,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:28,475 INFO L470 AbstractCegarLoop]: Abstraction has 687 states and 962 transitions. [2021-10-13 07:50:28,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-13 07:50:28,476 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 962 transitions. [2021-10-13 07:50:28,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 07:50:28,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:28,477 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:28,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:50:28,478 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1886474210, now seen corresponding path program 1 times [2021-10-13 07:50:28,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:28,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719297893] [2021-10-13 07:50:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:28,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:28,513 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:28,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719297893] [2021-10-13 07:50:28,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719297893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:28,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:28,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:28,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663875776] [2021-10-13 07:50:28,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:28,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:28,515 INFO L87 Difference]: Start difference. First operand 687 states and 962 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-10-13 07:50:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:28,746 INFO L93 Difference]: Finished difference Result 669 states and 944 transitions. [2021-10-13 07:50:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:28,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 [2021-10-13 07:50:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:28,753 INFO L225 Difference]: With dead ends: 669 [2021-10-13 07:50:28,753 INFO L226 Difference]: Without dead ends: 669 [2021-10-13 07:50:28,754 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-10-13 07:50:28,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2021-10-13 07:50:28,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 658 states have (on average 1.4346504559270516) internal successors, (944), 668 states have internal predecessors, (944), 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) [2021-10-13 07:50:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 944 transitions. [2021-10-13 07:50:28,774 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 944 transitions. Word has length 14 [2021-10-13 07:50:28,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:28,774 INFO L470 AbstractCegarLoop]: Abstraction has 669 states and 944 transitions. [2021-10-13 07:50:28,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-10-13 07:50:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 944 transitions. [2021-10-13 07:50:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:50:28,776 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:28,776 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:28,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 07:50:28,777 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:28,777 INFO L82 PathProgramCache]: Analyzing trace with hash 148925443, now seen corresponding path program 1 times [2021-10-13 07:50:28,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:28,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344875017] [2021-10-13 07:50:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:28,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:28,823 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:28,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344875017] [2021-10-13 07:50:28,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344875017] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:28,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:28,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:28,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086943311] [2021-10-13 07:50:28,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:28,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:28,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:28,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:28,825 INFO L87 Difference]: Start difference. First operand 669 states and 944 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 07:50:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:29,097 INFO L93 Difference]: Finished difference Result 657 states and 923 transitions. [2021-10-13 07:50:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-13 07:50:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:29,103 INFO L225 Difference]: With dead ends: 657 [2021-10-13 07:50:29,103 INFO L226 Difference]: Without dead ends: 657 [2021-10-13 07:50:29,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-10-13 07:50:29,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2021-10-13 07:50:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 649 states have (on average 1.4221879815100154) internal successors, (923), 656 states have internal predecessors, (923), 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) [2021-10-13 07:50:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 923 transitions. [2021-10-13 07:50:29,125 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 923 transitions. Word has length 19 [2021-10-13 07:50:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:29,125 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 923 transitions. [2021-10-13 07:50:29,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 07:50:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 923 transitions. [2021-10-13 07:50:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:50:29,128 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:29,128 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:29,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 07:50:29,128 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1022800750, now seen corresponding path program 1 times [2021-10-13 07:50:29,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:29,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268558645] [2021-10-13 07:50:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:29,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:29,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:29,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268558645] [2021-10-13 07:50:29,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268558645] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:29,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:29,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:29,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828566345] [2021-10-13 07:50:29,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:29,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:29,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:29,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,171 INFO L87 Difference]: Start difference. First operand 657 states and 923 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 07:50:29,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:29,206 INFO L93 Difference]: Finished difference Result 678 states and 942 transitions. [2021-10-13 07:50:29,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:29,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-13 07:50:29,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:29,211 INFO L225 Difference]: With dead ends: 678 [2021-10-13 07:50:29,212 INFO L226 Difference]: Without dead ends: 678 [2021-10-13 07:50:29,212 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2021-10-13 07:50:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 657. [2021-10-13 07:50:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 649 states have (on average 1.4175654853620956) internal successors, (920), 656 states have internal predecessors, (920), 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) [2021-10-13 07:50:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 920 transitions. [2021-10-13 07:50:29,234 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 920 transitions. Word has length 19 [2021-10-13 07:50:29,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:29,234 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 920 transitions. [2021-10-13 07:50:29,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-13 07:50:29,235 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 920 transitions. [2021-10-13 07:50:29,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 07:50:29,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:29,237 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:29,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 07:50:29,238 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:29,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:29,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1079655925, now seen corresponding path program 1 times [2021-10-13 07:50:29,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:29,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325989149] [2021-10-13 07:50:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:29,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:29,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:29,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325989149] [2021-10-13 07:50:29,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325989149] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:29,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:29,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:29,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477455055] [2021-10-13 07:50:29,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:29,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:29,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:29,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,281 INFO L87 Difference]: Start difference. First operand 657 states and 920 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-13 07:50:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:29,570 INFO L93 Difference]: Finished difference Result 814 states and 1142 transitions. [2021-10-13 07:50:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-10-13 07:50:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:29,577 INFO L225 Difference]: With dead ends: 814 [2021-10-13 07:50:29,577 INFO L226 Difference]: Without dead ends: 814 [2021-10-13 07:50:29,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-10-13 07:50:29,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 688. [2021-10-13 07:50:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 680 states have (on average 1.4029411764705881) internal successors, (954), 687 states have internal predecessors, (954), 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) [2021-10-13 07:50:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 954 transitions. [2021-10-13 07:50:29,602 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 954 transitions. Word has length 21 [2021-10-13 07:50:29,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:29,602 INFO L470 AbstractCegarLoop]: Abstraction has 688 states and 954 transitions. [2021-10-13 07:50:29,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-13 07:50:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 954 transitions. [2021-10-13 07:50:29,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:50:29,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:29,605 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:29,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 07:50:29,606 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:29,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1345561743, now seen corresponding path program 1 times [2021-10-13 07:50:29,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:29,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758630464] [2021-10-13 07:50:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:29,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:29,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:29,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758630464] [2021-10-13 07:50:29,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758630464] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:29,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:29,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:29,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297852402] [2021-10-13 07:50:29,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:29,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:29,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:29,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,674 INFO L87 Difference]: Start difference. First operand 688 states and 954 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:29,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:29,940 INFO L93 Difference]: Finished difference Result 708 states and 978 transitions. [2021-10-13 07:50:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:29,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-13 07:50:29,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:29,948 INFO L225 Difference]: With dead ends: 708 [2021-10-13 07:50:29,949 INFO L226 Difference]: Without dead ends: 708 [2021-10-13 07:50:29,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2021-10-13 07:50:29,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2021-10-13 07:50:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3971428571428572) internal successors, (978), 707 states have internal predecessors, (978), 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) [2021-10-13 07:50:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 978 transitions. [2021-10-13 07:50:29,973 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 978 transitions. Word has length 22 [2021-10-13 07:50:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:29,973 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 978 transitions. [2021-10-13 07:50:29,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 978 transitions. [2021-10-13 07:50:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:50:29,976 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:29,976 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:29,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 07:50:29,977 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:29,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:29,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2018702132, now seen corresponding path program 1 times [2021-10-13 07:50:29,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:29,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666291483] [2021-10-13 07:50:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:29,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:30,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:30,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666291483] [2021-10-13 07:50:30,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666291483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:30,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:30,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:30,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911139105] [2021-10-13 07:50:30,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:30,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:30,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:30,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:30,045 INFO L87 Difference]: Start difference. First operand 708 states and 978 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:30,089 INFO L93 Difference]: Finished difference Result 676 states and 921 transitions. [2021-10-13 07:50:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:30,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-13 07:50:30,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:30,096 INFO L225 Difference]: With dead ends: 676 [2021-10-13 07:50:30,097 INFO L226 Difference]: Without dead ends: 676 [2021-10-13 07:50:30,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:30,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-10-13 07:50:30,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2021-10-13 07:50:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 669 states have (on average 1.3766816143497758) internal successors, (921), 675 states have internal predecessors, (921), 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) [2021-10-13 07:50:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 921 transitions. [2021-10-13 07:50:30,121 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 921 transitions. Word has length 22 [2021-10-13 07:50:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:30,121 INFO L470 AbstractCegarLoop]: Abstraction has 676 states and 921 transitions. [2021-10-13 07:50:30,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 921 transitions. [2021-10-13 07:50:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:50:30,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:30,124 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:30,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 07:50:30,125 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:30,126 INFO L82 PathProgramCache]: Analyzing trace with hash -292471790, now seen corresponding path program 1 times [2021-10-13 07:50:30,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:30,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171709334] [2021-10-13 07:50:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:30,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:30,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:30,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171709334] [2021-10-13 07:50:30,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171709334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:30,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:30,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:50:30,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447017065] [2021-10-13 07:50:30,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:30,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:30,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:30,196 INFO L87 Difference]: Start difference. First operand 676 states and 921 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-13 07:50:30,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:30,249 INFO L93 Difference]: Finished difference Result 624 states and 836 transitions. [2021-10-13 07:50:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-10-13 07:50:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:30,254 INFO L225 Difference]: With dead ends: 624 [2021-10-13 07:50:30,254 INFO L226 Difference]: Without dead ends: 624 [2021-10-13 07:50:30,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2021-10-13 07:50:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 574. [2021-10-13 07:50:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 569 states have (on average 1.3620386643233744) internal successors, (775), 573 states have internal predecessors, (775), 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) [2021-10-13 07:50:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 775 transitions. [2021-10-13 07:50:30,276 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 775 transitions. Word has length 22 [2021-10-13 07:50:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:30,277 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 775 transitions. [2021-10-13 07:50:30,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-13 07:50:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 775 transitions. [2021-10-13 07:50:30,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:50:30,280 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:30,281 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:30,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 07:50:30,281 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:30,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:30,282 INFO L82 PathProgramCache]: Analyzing trace with hash 907629357, now seen corresponding path program 1 times [2021-10-13 07:50:30,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:30,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657623138] [2021-10-13 07:50:30,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:30,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:30,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:30,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657623138] [2021-10-13 07:50:30,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657623138] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:30,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:30,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:30,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826545327] [2021-10-13 07:50:30,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:30,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:30,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:30,344 INFO L87 Difference]: Start difference. First operand 574 states and 775 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:30,652 INFO L93 Difference]: Finished difference Result 623 states and 835 transitions. [2021-10-13 07:50:30,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:30,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-13 07:50:30,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:30,662 INFO L225 Difference]: With dead ends: 623 [2021-10-13 07:50:30,662 INFO L226 Difference]: Without dead ends: 623 [2021-10-13 07:50:30,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-10-13 07:50:30,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 574. [2021-10-13 07:50:30,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 569 states have (on average 1.360281195079086) internal successors, (774), 573 states have internal predecessors, (774), 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) [2021-10-13 07:50:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 774 transitions. [2021-10-13 07:50:30,685 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 774 transitions. Word has length 22 [2021-10-13 07:50:30,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:30,686 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 774 transitions. [2021-10-13 07:50:30,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 774 transitions. [2021-10-13 07:50:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:50:30,691 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:30,691 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:30,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 07:50:30,691 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:30,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1200979870, now seen corresponding path program 1 times [2021-10-13 07:50:30,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:30,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686773455] [2021-10-13 07:50:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:30,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:30,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:30,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686773455] [2021-10-13 07:50:30,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686773455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:30,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:30,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:30,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508089241] [2021-10-13 07:50:30,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:30,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:30,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:30,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:30,760 INFO L87 Difference]: Start difference. First operand 574 states and 774 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:31,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:31,054 INFO L93 Difference]: Finished difference Result 574 states and 765 transitions. [2021-10-13 07:50:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:31,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-13 07:50:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:31,059 INFO L225 Difference]: With dead ends: 574 [2021-10-13 07:50:31,059 INFO L226 Difference]: Without dead ends: 574 [2021-10-13 07:50:31,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:31,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-10-13 07:50:31,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2021-10-13 07:50:31,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 569 states have (on average 1.344463971880492) internal successors, (765), 573 states have internal predecessors, (765), 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) [2021-10-13 07:50:31,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 765 transitions. [2021-10-13 07:50:31,083 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 765 transitions. Word has length 22 [2021-10-13 07:50:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:31,084 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 765 transitions. [2021-10-13 07:50:31,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-13 07:50:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 765 transitions. [2021-10-13 07:50:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 07:50:31,087 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:31,087 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:31,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 07:50:31,088 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:31,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:31,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1220046179, now seen corresponding path program 1 times [2021-10-13 07:50:31,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:31,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307822732] [2021-10-13 07:50:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:31,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:31,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:31,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307822732] [2021-10-13 07:50:31,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307822732] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:31,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:31,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:31,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436052984] [2021-10-13 07:50:31,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:31,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:31,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:31,172 INFO L87 Difference]: Start difference. First operand 574 states and 765 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-13 07:50:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:31,440 INFO L93 Difference]: Finished difference Result 574 states and 764 transitions. [2021-10-13 07:50:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:31,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2021-10-13 07:50:31,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:31,445 INFO L225 Difference]: With dead ends: 574 [2021-10-13 07:50:31,445 INFO L226 Difference]: Without dead ends: 574 [2021-10-13 07:50:31,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-10-13 07:50:31,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2021-10-13 07:50:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 569 states have (on average 1.342706502636204) internal successors, (764), 573 states have internal predecessors, (764), 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) [2021-10-13 07:50:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 764 transitions. [2021-10-13 07:50:31,481 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 764 transitions. Word has length 23 [2021-10-13 07:50:31,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:31,481 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 764 transitions. [2021-10-13 07:50:31,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-13 07:50:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 764 transitions. [2021-10-13 07:50:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 07:50:31,484 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:31,484 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:31,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 07:50:31,484 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:31,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:31,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1844471590, now seen corresponding path program 1 times [2021-10-13 07:50:31,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:31,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868937793] [2021-10-13 07:50:31,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:31,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:31,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:31,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868937793] [2021-10-13 07:50:31,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868937793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:31,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:31,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:31,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953707474] [2021-10-13 07:50:31,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:31,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:31,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:31,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:31,544 INFO L87 Difference]: Start difference. First operand 574 states and 764 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-13 07:50:31,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:31,857 INFO L93 Difference]: Finished difference Result 561 states and 742 transitions. [2021-10-13 07:50:31,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:31,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2021-10-13 07:50:31,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:31,861 INFO L225 Difference]: With dead ends: 561 [2021-10-13 07:50:31,862 INFO L226 Difference]: Without dead ends: 561 [2021-10-13 07:50:31,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:31,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-10-13 07:50:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2021-10-13 07:50:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 556 states have (on average 1.3345323741007193) internal successors, (742), 560 states have internal predecessors, (742), 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) [2021-10-13 07:50:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 742 transitions. [2021-10-13 07:50:31,879 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 742 transitions. Word has length 23 [2021-10-13 07:50:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:31,880 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 742 transitions. [2021-10-13 07:50:31,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-13 07:50:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 742 transitions. [2021-10-13 07:50:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 07:50:31,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:31,882 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:31,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 07:50:31,883 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:31,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:31,884 INFO L82 PathProgramCache]: Analyzing trace with hash -895530832, now seen corresponding path program 1 times [2021-10-13 07:50:31,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:31,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741254418] [2021-10-13 07:50:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:31,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:31,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:31,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741254418] [2021-10-13 07:50:31,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741254418] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:31,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:31,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:31,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886366868] [2021-10-13 07:50:31,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:31,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:31,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:31,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:31,933 INFO L87 Difference]: Start difference. First operand 561 states and 742 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-13 07:50:32,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:32,125 INFO L93 Difference]: Finished difference Result 577 states and 757 transitions. [2021-10-13 07:50:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:32,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2021-10-13 07:50:32,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:32,129 INFO L225 Difference]: With dead ends: 577 [2021-10-13 07:50:32,129 INFO L226 Difference]: Without dead ends: 577 [2021-10-13 07:50:32,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-10-13 07:50:32,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 569. [2021-10-13 07:50:32,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 564 states have (on average 1.3297872340425532) internal successors, (750), 568 states have internal predecessors, (750), 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) [2021-10-13 07:50:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 750 transitions. [2021-10-13 07:50:32,146 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 750 transitions. Word has length 23 [2021-10-13 07:50:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:32,146 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 750 transitions. [2021-10-13 07:50:32,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-13 07:50:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 750 transitions. [2021-10-13 07:50:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:50:32,149 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:32,149 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:32,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 07:50:32,149 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:32,150 INFO L82 PathProgramCache]: Analyzing trace with hash 311396894, now seen corresponding path program 1 times [2021-10-13 07:50:32,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:32,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472519546] [2021-10-13 07:50:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:32,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:32,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:32,195 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:32,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472519546] [2021-10-13 07:50:32,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472519546] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:32,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:32,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:32,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907636559] [2021-10-13 07:50:32,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:32,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:32,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:32,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:32,198 INFO L87 Difference]: Start difference. First operand 569 states and 750 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-13 07:50:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:32,442 INFO L93 Difference]: Finished difference Result 569 states and 749 transitions. [2021-10-13 07:50:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-13 07:50:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:32,446 INFO L225 Difference]: With dead ends: 569 [2021-10-13 07:50:32,446 INFO L226 Difference]: Without dead ends: 569 [2021-10-13 07:50:32,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2021-10-13 07:50:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2021-10-13 07:50:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 564 states have (on average 1.3280141843971631) internal successors, (749), 568 states have internal predecessors, (749), 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) [2021-10-13 07:50:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 749 transitions. [2021-10-13 07:50:32,463 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 749 transitions. Word has length 24 [2021-10-13 07:50:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:32,465 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 749 transitions. [2021-10-13 07:50:32,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-13 07:50:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 749 transitions. [2021-10-13 07:50:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:50:32,467 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:32,467 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:32,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 07:50:32,468 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:32,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:32,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1974427352, now seen corresponding path program 1 times [2021-10-13 07:50:32,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:32,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498377505] [2021-10-13 07:50:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:32,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:32,575 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:32,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498377505] [2021-10-13 07:50:32,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498377505] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:32,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:32,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:50:32,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102046271] [2021-10-13 07:50:32,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:32,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:32,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:32,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:32,577 INFO L87 Difference]: Start difference. First operand 569 states and 749 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-10-13 07:50:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:32,653 INFO L93 Difference]: Finished difference Result 581 states and 760 transitions. [2021-10-13 07:50:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2021-10-13 07:50:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:32,658 INFO L225 Difference]: With dead ends: 581 [2021-10-13 07:50:32,658 INFO L226 Difference]: Without dead ends: 580 [2021-10-13 07:50:32,660 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-10-13 07:50:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 575. [2021-10-13 07:50:32,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 570 states have (on average 1.3245614035087718) internal successors, (755), 574 states have internal predecessors, (755), 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) [2021-10-13 07:50:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 755 transitions. [2021-10-13 07:50:32,676 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 755 transitions. Word has length 24 [2021-10-13 07:50:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:32,676 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 755 transitions. [2021-10-13 07:50:32,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-10-13 07:50:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 755 transitions. [2021-10-13 07:50:32,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:50:32,679 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:32,679 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:32,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 07:50:32,680 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:32,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1974439268, now seen corresponding path program 1 times [2021-10-13 07:50:32,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:32,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342814990] [2021-10-13 07:50:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:32,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:32,737 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:32,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342814990] [2021-10-13 07:50:32,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342814990] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:32,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:32,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:32,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753305988] [2021-10-13 07:50:32,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:32,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:32,743 INFO L87 Difference]: Start difference. First operand 575 states and 755 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-13 07:50:33,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:33,002 INFO L93 Difference]: Finished difference Result 582 states and 760 transitions. [2021-10-13 07:50:33,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:33,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-13 07:50:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:33,006 INFO L225 Difference]: With dead ends: 582 [2021-10-13 07:50:33,006 INFO L226 Difference]: Without dead ends: 565 [2021-10-13 07:50:33,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:33,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2021-10-13 07:50:33,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 562. [2021-10-13 07:50:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.3303411131059246) internal successors, (741), 561 states have internal predecessors, (741), 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) [2021-10-13 07:50:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 741 transitions. [2021-10-13 07:50:33,022 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 741 transitions. Word has length 24 [2021-10-13 07:50:33,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:33,023 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 741 transitions. [2021-10-13 07:50:33,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-13 07:50:33,023 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 741 transitions. [2021-10-13 07:50:33,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:50:33,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:33,025 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:33,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 07:50:33,025 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:33,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:33,026 INFO L82 PathProgramCache]: Analyzing trace with hash 710496244, now seen corresponding path program 1 times [2021-10-13 07:50:33,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:33,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502326351] [2021-10-13 07:50:33,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:33,113 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:33,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502326351] [2021-10-13 07:50:33,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502326351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:33,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:33,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:50:33,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587388423] [2021-10-13 07:50:33,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:50:33,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:50:33,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:33,116 INFO L87 Difference]: Start difference. First operand 562 states and 741 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2021-10-13 07:50:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:33,236 INFO L93 Difference]: Finished difference Result 578 states and 756 transitions. [2021-10-13 07:50:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:50:33,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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 [2021-10-13 07:50:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:33,240 INFO L225 Difference]: With dead ends: 578 [2021-10-13 07:50:33,240 INFO L226 Difference]: Without dead ends: 559 [2021-10-13 07:50:33,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:50:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-10-13 07:50:33,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2021-10-13 07:50:33,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 554 states have (on average 1.312274368231047) internal successors, (727), 558 states have internal predecessors, (727), 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) [2021-10-13 07:50:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 727 transitions. [2021-10-13 07:50:33,259 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 727 transitions. Word has length 25 [2021-10-13 07:50:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:33,259 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 727 transitions. [2021-10-13 07:50:33,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2021-10-13 07:50:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 727 transitions. [2021-10-13 07:50:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:50:33,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:33,262 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:33,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 07:50:33,263 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:33,264 INFO L82 PathProgramCache]: Analyzing trace with hash -530031518, now seen corresponding path program 1 times [2021-10-13 07:50:33,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:33,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457317075] [2021-10-13 07:50:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:33,353 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:33,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457317075] [2021-10-13 07:50:33,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457317075] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:33,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:33,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:33,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291202824] [2021-10-13 07:50:33,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:33,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:33,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:33,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:33,356 INFO L87 Difference]: Start difference. First operand 559 states and 727 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2021-10-13 07:50:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:33,544 INFO L93 Difference]: Finished difference Result 575 states and 742 transitions. [2021-10-13 07:50:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:33,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 [2021-10-13 07:50:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:33,549 INFO L225 Difference]: With dead ends: 575 [2021-10-13 07:50:33,549 INFO L226 Difference]: Without dead ends: 554 [2021-10-13 07:50:33,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-10-13 07:50:33,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2021-10-13 07:50:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.296903460837887) internal successors, (712), 553 states have internal predecessors, (712), 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) [2021-10-13 07:50:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 712 transitions. [2021-10-13 07:50:33,565 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 712 transitions. Word has length 25 [2021-10-13 07:50:33,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:33,566 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 712 transitions. [2021-10-13 07:50:33,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2021-10-13 07:50:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 712 transitions. [2021-10-13 07:50:33,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:50:33,568 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:33,568 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:33,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 07:50:33,569 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:33,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1051651063, now seen corresponding path program 1 times [2021-10-13 07:50:33,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:33,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270005766] [2021-10-13 07:50:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:33,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:33,628 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:33,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270005766] [2021-10-13 07:50:33,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270005766] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:33,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:33,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:33,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153974041] [2021-10-13 07:50:33,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:33,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:33,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:33,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:33,631 INFO L87 Difference]: Start difference. First operand 554 states and 712 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-10-13 07:50:33,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:33,719 INFO L93 Difference]: Finished difference Result 567 states and 724 transitions. [2021-10-13 07:50:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:33,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2021-10-13 07:50:33,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:33,724 INFO L225 Difference]: With dead ends: 567 [2021-10-13 07:50:33,724 INFO L226 Difference]: Without dead ends: 548 [2021-10-13 07:50:33,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:33,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-10-13 07:50:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2021-10-13 07:50:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.294659300184162) internal successors, (703), 547 states have internal predecessors, (703), 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) [2021-10-13 07:50:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 703 transitions. [2021-10-13 07:50:33,739 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 703 transitions. Word has length 26 [2021-10-13 07:50:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:33,739 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 703 transitions. [2021-10-13 07:50:33,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2021-10-13 07:50:33,740 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 703 transitions. [2021-10-13 07:50:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:50:33,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:33,742 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:33,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 07:50:33,742 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:33,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:33,743 INFO L82 PathProgramCache]: Analyzing trace with hash -92127145, now seen corresponding path program 1 times [2021-10-13 07:50:33,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:33,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601164589] [2021-10-13 07:50:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:33,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:33,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601164589] [2021-10-13 07:50:33,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601164589] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:33,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:33,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:50:33,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131885123] [2021-10-13 07:50:33,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:50:33,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:33,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:50:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:33,842 INFO L87 Difference]: Start difference. First operand 548 states and 703 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-13 07:50:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:33,922 INFO L93 Difference]: Finished difference Result 557 states and 709 transitions. [2021-10-13 07:50:33,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:50:33,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-10-13 07:50:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:33,930 INFO L225 Difference]: With dead ends: 557 [2021-10-13 07:50:33,930 INFO L226 Difference]: Without dead ends: 557 [2021-10-13 07:50:33,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:33,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-10-13 07:50:33,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 544. [2021-10-13 07:50:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 539 states have (on average 1.2931354359925789) internal successors, (697), 543 states have internal predecessors, (697), 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) [2021-10-13 07:50:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 697 transitions. [2021-10-13 07:50:33,948 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 697 transitions. Word has length 26 [2021-10-13 07:50:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:33,949 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 697 transitions. [2021-10-13 07:50:33,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-13 07:50:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 697 transitions. [2021-10-13 07:50:33,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:50:33,951 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:33,951 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:33,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 07:50:33,951 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:33,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:33,952 INFO L82 PathProgramCache]: Analyzing trace with hash 354355285, now seen corresponding path program 1 times [2021-10-13 07:50:33,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:33,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290546118] [2021-10-13 07:50:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:34,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:34,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290546118] [2021-10-13 07:50:34,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290546118] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:34,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:34,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:50:34,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373237084] [2021-10-13 07:50:34,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:50:34,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:34,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:50:34,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:34,028 INFO L87 Difference]: Start difference. First operand 544 states and 697 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-13 07:50:34,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:34,206 INFO L93 Difference]: Finished difference Result 566 states and 717 transitions. [2021-10-13 07:50:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:50:34,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-10-13 07:50:34,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:34,210 INFO L225 Difference]: With dead ends: 566 [2021-10-13 07:50:34,210 INFO L226 Difference]: Without dead ends: 540 [2021-10-13 07:50:34,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-10-13 07:50:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 527. [2021-10-13 07:50:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 522 states have (on average 1.2988505747126438) internal successors, (678), 526 states have internal predecessors, (678), 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) [2021-10-13 07:50:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 678 transitions. [2021-10-13 07:50:34,226 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 678 transitions. Word has length 26 [2021-10-13 07:50:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:34,226 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 678 transitions. [2021-10-13 07:50:34,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-13 07:50:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 678 transitions. [2021-10-13 07:50:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:50:34,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:34,228 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:34,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-13 07:50:34,229 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:34,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1690571282, now seen corresponding path program 1 times [2021-10-13 07:50:34,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:34,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391645504] [2021-10-13 07:50:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:34,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:34,297 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:34,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391645504] [2021-10-13 07:50:34,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391645504] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:34,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:34,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:50:34,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662657906] [2021-10-13 07:50:34,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:50:34,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:34,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:50:34,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:34,299 INFO L87 Difference]: Start difference. First operand 527 states and 678 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-10-13 07:50:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:34,496 INFO L93 Difference]: Finished difference Result 550 states and 699 transitions. [2021-10-13 07:50:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:50:34,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2021-10-13 07:50:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:34,499 INFO L225 Difference]: With dead ends: 550 [2021-10-13 07:50:34,500 INFO L226 Difference]: Without dead ends: 532 [2021-10-13 07:50:34,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-10-13 07:50:34,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 519. [2021-10-13 07:50:34,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 514 states have (on average 1.301556420233463) internal successors, (669), 518 states have internal predecessors, (669), 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) [2021-10-13 07:50:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 669 transitions. [2021-10-13 07:50:34,513 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 669 transitions. Word has length 27 [2021-10-13 07:50:34,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:34,514 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 669 transitions. [2021-10-13 07:50:34,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-10-13 07:50:34,514 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 669 transitions. [2021-10-13 07:50:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:50:34,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:34,516 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:34,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-13 07:50:34,516 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:34,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:34,517 INFO L82 PathProgramCache]: Analyzing trace with hash 730572492, now seen corresponding path program 1 times [2021-10-13 07:50:34,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:34,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948504276] [2021-10-13 07:50:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:34,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:34,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:34,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948504276] [2021-10-13 07:50:34,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948504276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:34,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:34,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:34,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078295263] [2021-10-13 07:50:34,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:34,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:34,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:34,569 INFO L87 Difference]: Start difference. First operand 519 states and 669 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2021-10-13 07:50:34,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:34,639 INFO L93 Difference]: Finished difference Result 532 states and 681 transitions. [2021-10-13 07:50:34,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:34,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2021-10-13 07:50:34,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:34,643 INFO L225 Difference]: With dead ends: 532 [2021-10-13 07:50:34,643 INFO L226 Difference]: Without dead ends: 517 [2021-10-13 07:50:34,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:34,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-10-13 07:50:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2021-10-13 07:50:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.30078125) internal successors, (666), 516 states have internal predecessors, (666), 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) [2021-10-13 07:50:34,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 666 transitions. [2021-10-13 07:50:34,657 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 666 transitions. Word has length 27 [2021-10-13 07:50:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:34,658 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 666 transitions. [2021-10-13 07:50:34,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2021-10-13 07:50:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 666 transitions. [2021-10-13 07:50:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:50:34,660 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:34,660 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:34,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-13 07:50:34,661 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:34,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:34,661 INFO L82 PathProgramCache]: Analyzing trace with hash 491912702, now seen corresponding path program 1 times [2021-10-13 07:50:34,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:34,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764481632] [2021-10-13 07:50:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:34,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:34,693 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:34,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764481632] [2021-10-13 07:50:34,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764481632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:34,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:34,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:50:34,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439820638] [2021-10-13 07:50:34,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:34,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:34,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:34,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:34,695 INFO L87 Difference]: Start difference. First operand 517 states and 666 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-10-13 07:50:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:34,852 INFO L93 Difference]: Finished difference Result 602 states and 765 transitions. [2021-10-13 07:50:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:34,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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 [2021-10-13 07:50:34,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:34,856 INFO L225 Difference]: With dead ends: 602 [2021-10-13 07:50:34,857 INFO L226 Difference]: Without dead ends: 600 [2021-10-13 07:50:34,857 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-10-13 07:50:34,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 517. [2021-10-13 07:50:34,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.298828125) internal successors, (665), 516 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) [2021-10-13 07:50:34,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 665 transitions. [2021-10-13 07:50:34,874 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 665 transitions. Word has length 27 [2021-10-13 07:50:34,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:34,874 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 665 transitions. [2021-10-13 07:50:34,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-10-13 07:50:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 665 transitions. [2021-10-13 07:50:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:50:34,877 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:34,877 INFO L512 BasicCegarLoop]: 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] [2021-10-13 07:50:34,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-13 07:50:34,878 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:34,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:34,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1854445424, now seen corresponding path program 1 times [2021-10-13 07:50:34,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:34,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005412505] [2021-10-13 07:50:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:34,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:34,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:34,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005412505] [2021-10-13 07:50:34,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005412505] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:34,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:34,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:34,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114930834] [2021-10-13 07:50:34,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:34,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:34,935 INFO L87 Difference]: Start difference. First operand 517 states and 665 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 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) [2021-10-13 07:50:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:35,163 INFO L93 Difference]: Finished difference Result 517 states and 661 transitions. [2021-10-13 07:50:35,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 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 [2021-10-13 07:50:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:35,167 INFO L225 Difference]: With dead ends: 517 [2021-10-13 07:50:35,167 INFO L226 Difference]: Without dead ends: 517 [2021-10-13 07:50:35,168 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-10-13 07:50:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2021-10-13 07:50:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.291015625) internal successors, (661), 516 states have internal predecessors, (661), 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) [2021-10-13 07:50:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 661 transitions. [2021-10-13 07:50:35,184 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 661 transitions. Word has length 27 [2021-10-13 07:50:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:35,185 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 661 transitions. [2021-10-13 07:50:35,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 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) [2021-10-13 07:50:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 661 transitions. [2021-10-13 07:50:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:50:35,187 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:35,187 INFO L512 BasicCegarLoop]: 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, 1] [2021-10-13 07:50:35,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-13 07:50:35,188 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:35,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:35,188 INFO L82 PathProgramCache]: Analyzing trace with hash -912381084, now seen corresponding path program 1 times [2021-10-13 07:50:35,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:35,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970221194] [2021-10-13 07:50:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:35,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:35,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:35,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970221194] [2021-10-13 07:50:35,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970221194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:35,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:35,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:50:35,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727389867] [2021-10-13 07:50:35,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:50:35,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:50:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:35,248 INFO L87 Difference]: Start difference. First operand 517 states and 661 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-10-13 07:50:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:35,328 INFO L93 Difference]: Finished difference Result 584 states and 731 transitions. [2021-10-13 07:50:35,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:50:35,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-10-13 07:50:35,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:35,333 INFO L225 Difference]: With dead ends: 584 [2021-10-13 07:50:35,333 INFO L226 Difference]: Without dead ends: 584 [2021-10-13 07:50:35,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2021-10-13 07:50:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 527. [2021-10-13 07:50:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 522 states have (on average 1.2911877394636015) internal successors, (674), 526 states have internal predecessors, (674), 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) [2021-10-13 07:50:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 674 transitions. [2021-10-13 07:50:35,352 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 674 transitions. Word has length 28 [2021-10-13 07:50:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:35,353 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 674 transitions. [2021-10-13 07:50:35,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-10-13 07:50:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 674 transitions. [2021-10-13 07:50:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:50:35,355 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:35,355 INFO L512 BasicCegarLoop]: 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, 1] [2021-10-13 07:50:35,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-13 07:50:35,356 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:35,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1785538178, now seen corresponding path program 1 times [2021-10-13 07:50:35,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:35,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401027835] [2021-10-13 07:50:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:35,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:35,428 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:35,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401027835] [2021-10-13 07:50:35,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401027835] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:35,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:35,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:35,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456929861] [2021-10-13 07:50:35,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:35,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:35,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:35,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:35,431 INFO L87 Difference]: Start difference. First operand 527 states and 674 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2021-10-13 07:50:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:35,563 INFO L93 Difference]: Finished difference Result 540 states and 686 transitions. [2021-10-13 07:50:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:35,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2021-10-13 07:50:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:35,566 INFO L225 Difference]: With dead ends: 540 [2021-10-13 07:50:35,566 INFO L226 Difference]: Without dead ends: 521 [2021-10-13 07:50:35,566 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:35,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2021-10-13 07:50:35,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2021-10-13 07:50:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 516 states have (on average 1.2887596899224807) internal successors, (665), 520 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) [2021-10-13 07:50:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 665 transitions. [2021-10-13 07:50:35,578 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 665 transitions. Word has length 28 [2021-10-13 07:50:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:35,579 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 665 transitions. [2021-10-13 07:50:35,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2021-10-13 07:50:35,579 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 665 transitions. [2021-10-13 07:50:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:50:35,581 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:35,581 INFO L512 BasicCegarLoop]: 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, 1] [2021-10-13 07:50:35,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-13 07:50:35,582 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:35,582 INFO L82 PathProgramCache]: Analyzing trace with hash 726537242, now seen corresponding path program 1 times [2021-10-13 07:50:35,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:35,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372327462] [2021-10-13 07:50:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:35,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:35,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:35,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372327462] [2021-10-13 07:50:35,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372327462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:35,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:35,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:50:35,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573005022] [2021-10-13 07:50:35,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:50:35,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:35,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:50:35,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:35,903 INFO L87 Difference]: Start difference. First operand 521 states and 665 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2021-10-13 07:50:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:36,282 INFO L93 Difference]: Finished difference Result 544 states and 686 transitions. [2021-10-13 07:50:36,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:50:36,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2021-10-13 07:50:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:36,285 INFO L225 Difference]: With dead ends: 544 [2021-10-13 07:50:36,285 INFO L226 Difference]: Without dead ends: 525 [2021-10-13 07:50:36,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 313.7ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:50:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-10-13 07:50:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 512. [2021-10-13 07:50:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 507 states have (on average 1.291913214990138) internal successors, (655), 511 states have internal predecessors, (655), 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) [2021-10-13 07:50:36,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 655 transitions. [2021-10-13 07:50:36,296 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 655 transitions. Word has length 28 [2021-10-13 07:50:36,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:36,297 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 655 transitions. [2021-10-13 07:50:36,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2021-10-13 07:50:36,297 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 655 transitions. [2021-10-13 07:50:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:50:36,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:36,299 INFO L512 BasicCegarLoop]: 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, 1] [2021-10-13 07:50:36,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-13 07:50:36,300 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:36,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:36,300 INFO L82 PathProgramCache]: Analyzing trace with hash 436528394, now seen corresponding path program 1 times [2021-10-13 07:50:36,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:36,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560178363] [2021-10-13 07:50:36,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:36,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:36,346 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:36,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560178363] [2021-10-13 07:50:36,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560178363] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:36,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:36,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:50:36,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531385613] [2021-10-13 07:50:36,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:36,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:36,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:36,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:36,349 INFO L87 Difference]: Start difference. First operand 512 states and 655 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-13 07:50:36,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:36,568 INFO L93 Difference]: Finished difference Result 539 states and 682 transitions. [2021-10-13 07:50:36,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:36,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-13 07:50:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:36,572 INFO L225 Difference]: With dead ends: 539 [2021-10-13 07:50:36,572 INFO L226 Difference]: Without dead ends: 539 [2021-10-13 07:50:36,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-10-13 07:50:36,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 485. [2021-10-13 07:50:36,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 482 states have (on average 1.2842323651452283) internal successors, (619), 484 states have internal predecessors, (619), 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) [2021-10-13 07:50:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 619 transitions. [2021-10-13 07:50:36,585 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 619 transitions. Word has length 28 [2021-10-13 07:50:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:36,585 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 619 transitions. [2021-10-13 07:50:36,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-13 07:50:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 619 transitions. [2021-10-13 07:50:36,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:50:36,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:36,588 INFO L512 BasicCegarLoop]: 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, 1, 1] [2021-10-13 07:50:36,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-13 07:50:36,589 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:36,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:36,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1047868694, now seen corresponding path program 1 times [2021-10-13 07:50:36,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:36,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838232306] [2021-10-13 07:50:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:36,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:36,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:36,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838232306] [2021-10-13 07:50:36,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838232306] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:36,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:36,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 07:50:36,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335175874] [2021-10-13 07:50:36,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:50:36,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:50:36,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:50:36,679 INFO L87 Difference]: Start difference. First operand 485 states and 619 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,009 INFO L93 Difference]: Finished difference Result 571 states and 713 transitions. [2021-10-13 07:50:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:50:37,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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 29 [2021-10-13 07:50:37,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,014 INFO L225 Difference]: With dead ends: 571 [2021-10-13 07:50:37,014 INFO L226 Difference]: Without dead ends: 540 [2021-10-13 07:50:37,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.7ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:50:37,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-10-13 07:50:37,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 485. [2021-10-13 07:50:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 482 states have (on average 1.2717842323651452) internal successors, (613), 484 states have internal predecessors, (613), 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) [2021-10-13 07:50:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 613 transitions. [2021-10-13 07:50:37,027 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 613 transitions. Word has length 29 [2021-10-13 07:50:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,027 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 613 transitions. [2021-10-13 07:50:37,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 613 transitions. [2021-10-13 07:50:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:50:37,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,029 INFO L512 BasicCegarLoop]: 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, 1, 1] [2021-10-13 07:50:37,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-13 07:50:37,030 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:37,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1022199079, now seen corresponding path program 1 times [2021-10-13 07:50:37,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742574170] [2021-10-13 07:50:37,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:37,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:37,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742574170] [2021-10-13 07:50:37,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742574170] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:37,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:37,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:50:37,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397420153] [2021-10-13 07:50:37,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:50:37,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:37,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:50:37,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:37,142 INFO L87 Difference]: Start difference. First operand 485 states and 613 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,384 INFO L93 Difference]: Finished difference Result 566 states and 701 transitions. [2021-10-13 07:50:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:50:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 29 [2021-10-13 07:50:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,388 INFO L225 Difference]: With dead ends: 566 [2021-10-13 07:50:37,388 INFO L226 Difference]: Without dead ends: 530 [2021-10-13 07:50:37,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:50:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2021-10-13 07:50:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 488. [2021-10-13 07:50:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 485 states have (on average 1.2556701030927835) internal successors, (609), 487 states have internal predecessors, (609), 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) [2021-10-13 07:50:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 609 transitions. [2021-10-13 07:50:37,400 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 609 transitions. Word has length 29 [2021-10-13 07:50:37,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,401 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 609 transitions. [2021-10-13 07:50:37,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,401 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 609 transitions. [2021-10-13 07:50:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:50:37,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,403 INFO L512 BasicCegarLoop]: 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, 1, 1] [2021-10-13 07:50:37,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-13 07:50:37,403 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:37,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2072012492, now seen corresponding path program 1 times [2021-10-13 07:50:37,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369389676] [2021-10-13 07:50:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:37,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:37,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:37,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369389676] [2021-10-13 07:50:37,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369389676] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:37,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:37,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:37,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680035324] [2021-10-13 07:50:37,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:37,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:37,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:37,459 INFO L87 Difference]: Start difference. First operand 488 states and 609 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,557 INFO L93 Difference]: Finished difference Result 505 states and 625 transitions. [2021-10-13 07:50:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2021-10-13 07:50:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,560 INFO L225 Difference]: With dead ends: 505 [2021-10-13 07:50:37,560 INFO L226 Difference]: Without dead ends: 481 [2021-10-13 07:50:37,560 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:37,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-10-13 07:50:37,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2021-10-13 07:50:37,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 478 states have (on average 1.2489539748953975) internal successors, (597), 480 states have internal predecessors, (597), 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) [2021-10-13 07:50:37,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 597 transitions. [2021-10-13 07:50:37,572 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 597 transitions. Word has length 29 [2021-10-13 07:50:37,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,572 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 597 transitions. [2021-10-13 07:50:37,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 597 transitions. [2021-10-13 07:50:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:50:37,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,574 INFO L512 BasicCegarLoop]: 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, 1, 1] [2021-10-13 07:50:37,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-13 07:50:37,575 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:37,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1223763089, now seen corresponding path program 1 times [2021-10-13 07:50:37,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956487293] [2021-10-13 07:50:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:37,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:37,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956487293] [2021-10-13 07:50:37,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956487293] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:37,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:37,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:37,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860219121] [2021-10-13 07:50:37,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:37,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:37,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:37,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:37,662 INFO L87 Difference]: Start difference. First operand 481 states and 597 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,801 INFO L93 Difference]: Finished difference Result 509 states and 622 transitions. [2021-10-13 07:50:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2021-10-13 07:50:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,804 INFO L225 Difference]: With dead ends: 509 [2021-10-13 07:50:37,804 INFO L226 Difference]: Without dead ends: 490 [2021-10-13 07:50:37,805 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-13 07:50:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 470. [2021-10-13 07:50:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 467 states have (on average 1.2483940042826553) internal successors, (583), 469 states have internal predecessors, (583), 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) [2021-10-13 07:50:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 583 transitions. [2021-10-13 07:50:37,816 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 583 transitions. Word has length 29 [2021-10-13 07:50:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,816 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 583 transitions. [2021-10-13 07:50:37,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 583 transitions. [2021-10-13 07:50:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:50:37,818 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,818 INFO L512 BasicCegarLoop]: 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, 1, 1] [2021-10-13 07:50:37,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-13 07:50:37,819 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,819 INFO L82 PathProgramCache]: Analyzing trace with hash 736518306, now seen corresponding path program 1 times [2021-10-13 07:50:37,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651791282] [2021-10-13 07:50:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:37,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:37,846 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:37,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651791282] [2021-10-13 07:50:37,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651791282] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:37,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:37,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:37,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337309039] [2021-10-13 07:50:37,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:37,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:37,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:37,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:37,848 INFO L87 Difference]: Start difference. First operand 470 states and 583 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,900 INFO L93 Difference]: Finished difference Result 329 states and 383 transitions. [2021-10-13 07:50:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-10-13 07:50:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,903 INFO L225 Difference]: With dead ends: 329 [2021-10-13 07:50:37,903 INFO L226 Difference]: Without dead ends: 256 [2021-10-13 07:50:37,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:37,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-13 07:50:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 234. [2021-10-13 07:50:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 231 states have (on average 1.1688311688311688) internal successors, (270), 233 states have internal predecessors, (270), 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) [2021-10-13 07:50:37,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 270 transitions. [2021-10-13 07:50:37,921 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 270 transitions. Word has length 29 [2021-10-13 07:50:37,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,922 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 270 transitions. [2021-10-13 07:50:37,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 07:50:37,924 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 270 transitions. [2021-10-13 07:50:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 07:50:37,925 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,925 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-10-13 07:50:37,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-13 07:50:37,926 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,927 INFO L82 PathProgramCache]: Analyzing trace with hash -911824357, now seen corresponding path program 1 times [2021-10-13 07:50:37,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707882174] [2021-10-13 07:50:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:37,962 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:37,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707882174] [2021-10-13 07:50:37,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707882174] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:37,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:37,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:37,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856422659] [2021-10-13 07:50:37,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:37,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:37,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:37,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:37,965 INFO L87 Difference]: Start difference. First operand 234 states and 270 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-10-13 07:50:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,979 INFO L93 Difference]: Finished difference Result 239 states and 273 transitions. [2021-10-13 07:50:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:37,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-10-13 07:50:37,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,982 INFO L225 Difference]: With dead ends: 239 [2021-10-13 07:50:37,982 INFO L226 Difference]: Without dead ends: 239 [2021-10-13 07:50:37,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:37,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-10-13 07:50:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 234. [2021-10-13 07:50:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 231 states have (on average 1.1645021645021645) internal successors, (269), 233 states have internal predecessors, (269), 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) [2021-10-13 07:50:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 269 transitions. [2021-10-13 07:50:37,988 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 269 transitions. Word has length 32 [2021-10-13 07:50:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,989 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 269 transitions. [2021-10-13 07:50:37,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-10-13 07:50:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 269 transitions. [2021-10-13 07:50:37,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 07:50:37,990 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,991 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:37,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-13 07:50:37,991 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:37,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,992 INFO L82 PathProgramCache]: Analyzing trace with hash 936324310, now seen corresponding path program 1 times [2021-10-13 07:50:37,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48598667] [2021-10-13 07:50:37,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:38,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:38,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48598667] [2021-10-13 07:50:38,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48598667] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:38,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:38,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:38,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645184632] [2021-10-13 07:50:38,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:38,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:38,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:38,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:50:38,035 INFO L87 Difference]: Start difference. First operand 234 states and 269 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-10-13 07:50:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:38,130 INFO L93 Difference]: Finished difference Result 236 states and 270 transitions. [2021-10-13 07:50:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:38,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-10-13 07:50:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:38,132 INFO L225 Difference]: With dead ends: 236 [2021-10-13 07:50:38,132 INFO L226 Difference]: Without dead ends: 212 [2021-10-13 07:50:38,133 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-13 07:50:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2021-10-13 07:50:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 209 states have (on average 1.1578947368421053) internal successors, (242), 211 states have internal predecessors, (242), 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) [2021-10-13 07:50:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 242 transitions. [2021-10-13 07:50:38,138 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 242 transitions. Word has length 34 [2021-10-13 07:50:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:38,139 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 242 transitions. [2021-10-13 07:50:38,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-10-13 07:50:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 242 transitions. [2021-10-13 07:50:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 07:50:38,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:38,140 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:38,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-13 07:50:38,141 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:38,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:38,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1331844510, now seen corresponding path program 1 times [2021-10-13 07:50:38,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:38,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508493514] [2021-10-13 07:50:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:38,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:38,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:38,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508493514] [2021-10-13 07:50:38,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508493514] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:38,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:38,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:50:38,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857436449] [2021-10-13 07:50:38,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:50:38,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:38,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:50:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:38,266 INFO L87 Difference]: Start difference. First operand 212 states and 242 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-10-13 07:50:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:38,385 INFO L93 Difference]: Finished difference Result 197 states and 222 transitions. [2021-10-13 07:50:38,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:50:38,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 34 [2021-10-13 07:50:38,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:38,387 INFO L225 Difference]: With dead ends: 197 [2021-10-13 07:50:38,387 INFO L226 Difference]: Without dead ends: 181 [2021-10-13 07:50:38,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-13 07:50:38,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 167. [2021-10-13 07:50:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 165 states have (on average 1.1696969696969697) internal successors, (193), 166 states have internal predecessors, (193), 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) [2021-10-13 07:50:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 193 transitions. [2021-10-13 07:50:38,391 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 193 transitions. Word has length 34 [2021-10-13 07:50:38,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:38,392 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 193 transitions. [2021-10-13 07:50:38,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-10-13 07:50:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 193 transitions. [2021-10-13 07:50:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:50:38,392 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:38,393 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:38,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-13 07:50:38,393 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:38,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:38,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1336128158, now seen corresponding path program 1 times [2021-10-13 07:50:38,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:38,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123558868] [2021-10-13 07:50:38,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:38,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:38,486 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:38,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123558868] [2021-10-13 07:50:38,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123558868] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:38,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:38,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:38,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916811935] [2021-10-13 07:50:38,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:38,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:38,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:38,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:38,489 INFO L87 Difference]: Start difference. First operand 167 states and 193 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-10-13 07:50:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:38,625 INFO L93 Difference]: Finished difference Result 177 states and 202 transitions. [2021-10-13 07:50:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:38,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2021-10-13 07:50:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:38,627 INFO L225 Difference]: With dead ends: 177 [2021-10-13 07:50:38,627 INFO L226 Difference]: Without dead ends: 137 [2021-10-13 07:50:38,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:38,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-13 07:50:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-13 07:50:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 135 states have (on average 1.1555555555555554) internal successors, (156), 136 states have internal predecessors, (156), 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) [2021-10-13 07:50:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2021-10-13 07:50:38,631 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 36 [2021-10-13 07:50:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:38,631 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2021-10-13 07:50:38,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-10-13 07:50:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2021-10-13 07:50:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 07:50:38,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:38,632 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:38,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-13 07:50:38,632 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1208334182, now seen corresponding path program 1 times [2021-10-13 07:50:38,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:38,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685187010] [2021-10-13 07:50:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:38,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:38,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:38,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685187010] [2021-10-13 07:50:38,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685187010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:38,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:38,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:38,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073267165] [2021-10-13 07:50:38,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:38,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:38,728 INFO L87 Difference]: Start difference. First operand 137 states and 156 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-10-13 07:50:38,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:38,839 INFO L93 Difference]: Finished difference Result 135 states and 154 transitions. [2021-10-13 07:50:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:38,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-10-13 07:50:38,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:38,841 INFO L225 Difference]: With dead ends: 135 [2021-10-13 07:50:38,841 INFO L226 Difference]: Without dead ends: 83 [2021-10-13 07:50:38,841 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-13 07:50:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-13 07:50:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.170731707317073) internal successors, (96), 82 states have internal predecessors, (96), 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) [2021-10-13 07:50:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2021-10-13 07:50:38,843 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 38 [2021-10-13 07:50:38,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:38,844 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2021-10-13 07:50:38,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-10-13 07:50:38,844 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2021-10-13 07:50:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 07:50:38,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:38,845 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:38,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-13 07:50:38,846 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:38,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1526568307, now seen corresponding path program 1 times [2021-10-13 07:50:38,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:38,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460155684] [2021-10-13 07:50:38,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:38,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:38,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:38,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460155684] [2021-10-13 07:50:38,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460155684] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:38,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:38,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:50:38,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745266995] [2021-10-13 07:50:38,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:50:38,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:38,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:50:38,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:38,898 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2021-10-13 07:50:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:38,914 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2021-10-13 07:50:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:38,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 40 [2021-10-13 07:50:38,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:38,916 INFO L225 Difference]: With dead ends: 83 [2021-10-13 07:50:38,916 INFO L226 Difference]: Without dead ends: 83 [2021-10-13 07:50:38,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:38,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-13 07:50:38,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-13 07:50:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 82 states have internal predecessors, (93), 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) [2021-10-13 07:50:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2021-10-13 07:50:38,919 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 40 [2021-10-13 07:50:38,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:38,920 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2021-10-13 07:50:38,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2021-10-13 07:50:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2021-10-13 07:50:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 07:50:38,921 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:38,921 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:38,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-13 07:50:38,922 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:38,922 INFO L82 PathProgramCache]: Analyzing trace with hash 462042414, now seen corresponding path program 1 times [2021-10-13 07:50:38,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:38,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643751727] [2021-10-13 07:50:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:38,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:38,981 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:38,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643751727] [2021-10-13 07:50:38,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643751727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:38,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:38,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:50:38,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460145566] [2021-10-13 07:50:38,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:50:38,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:38,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:50:38,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:38,984 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-10-13 07:50:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:39,051 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2021-10-13 07:50:39,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:50:39,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-10-13 07:50:39,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:39,053 INFO L225 Difference]: With dead ends: 98 [2021-10-13 07:50:39,053 INFO L226 Difference]: Without dead ends: 83 [2021-10-13 07:50:39,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:50:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-13 07:50:39,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-13 07:50:39,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.1219512195121952) internal successors, (92), 82 states have internal predecessors, (92), 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) [2021-10-13 07:50:39,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-10-13 07:50:39,056 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 40 [2021-10-13 07:50:39,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:39,057 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-10-13 07:50:39,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-10-13 07:50:39,057 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-10-13 07:50:39,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-13 07:50:39,058 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:39,058 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:39,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-13 07:50:39,059 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:39,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:39,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1517121529, now seen corresponding path program 1 times [2021-10-13 07:50:39,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:39,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91900386] [2021-10-13 07:50:39,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:39,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:39,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:39,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91900386] [2021-10-13 07:50:39,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91900386] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:39,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:39,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:50:39,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818719863] [2021-10-13 07:50:39,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:50:39,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:50:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:39,130 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-10-13 07:50:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:39,253 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2021-10-13 07:50:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:50:39,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-10-13 07:50:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:39,254 INFO L225 Difference]: With dead ends: 111 [2021-10-13 07:50:39,254 INFO L226 Difference]: Without dead ends: 51 [2021-10-13 07:50:39,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 86.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:50:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-13 07:50:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-13 07:50:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.06) internal successors, (53), 50 states have internal predecessors, (53), 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) [2021-10-13 07:50:39,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-10-13 07:50:39,256 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 42 [2021-10-13 07:50:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:39,257 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-10-13 07:50:39,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-10-13 07:50:39,257 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-10-13 07:50:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-13 07:50:39,257 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:39,258 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:39,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-13 07:50:39,258 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 100 more)] === [2021-10-13 07:50:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:39,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1165885953, now seen corresponding path program 1 times [2021-10-13 07:50:39,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:39,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476772153] [2021-10-13 07:50:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:39,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:39,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:39,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476772153] [2021-10-13 07:50:39,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476772153] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:39,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:39,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:50:39,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301549617] [2021-10-13 07:50:39,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:50:39,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:39,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:50:39,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:50:39,339 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-10-13 07:50:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:39,410 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-10-13 07:50:39,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:50:39,411 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-10-13 07:50:39,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:39,411 INFO L225 Difference]: With dead ends: 49 [2021-10-13 07:50:39,411 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:50:39,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:50:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:50:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:50:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-13 07:50:39,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:50:39,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2021-10-13 07:50:39,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:39,413 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:50:39,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-10-13 07:50:39,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:50:39,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:50:39,445 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,448 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,450 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,450 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,450 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,450 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,452 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,452 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,452 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,455 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,455 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,455 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,455 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,464 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,464 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,464 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,464 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,465 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,465 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,465 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,465 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,466 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,466 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,466 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,467 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,467 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,467 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,467 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,468 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,468 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,468 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,468 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,469 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,469 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,469 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,469 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,470 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr86ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,470 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr87ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,470 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr88ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,470 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr90ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr91ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,472 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,472 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr95ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,472 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,472 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,473 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,473 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr99ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,473 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr100ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,474 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,474 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:50:39,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-13 07:50:39,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:50:39,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:50:39 BoogieIcfgContainer [2021-10-13 07:50:39,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:50:39,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:50:39,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:50:39,486 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:50:39,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:50:24" (3/4) ... [2021-10-13 07:50:39,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:50:39,591 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 565 nodes and edges [2021-10-13 07:50:39,606 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2021-10-13 07:50:39,620 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-10-13 07:50:39,635 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:50:40,190 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:50:40,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:50:40,192 INFO L168 Benchmark]: Toolchain (without parser) took 23417.59 ms. Allocated memory was 123.7 MB in the beginning and 497.0 MB in the end (delta: 373.3 MB). Free memory was 93.3 MB in the beginning and 344.3 MB in the end (delta: -251.0 MB). Peak memory consumption was 121.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,193 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 62.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:50:40,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.67 ms. Allocated memory is still 123.7 MB. Free memory was 93.3 MB in the beginning and 81.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 297.77 ms. Allocated memory is still 123.7 MB. Free memory was 81.4 MB in the beginning and 61.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,194 INFO L168 Benchmark]: Boogie Preprocessor took 301.39 ms. Allocated memory is still 123.7 MB. Free memory was 61.2 MB in the beginning and 87.0 MB in the end (delta: -25.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,195 INFO L168 Benchmark]: RCFGBuilder took 6555.42 ms. Allocated memory was 123.7 MB in the beginning and 302.0 MB in the end (delta: 178.3 MB). Free memory was 87.0 MB in the beginning and 185.8 MB in the end (delta: -98.8 MB). Peak memory consumption was 142.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,195 INFO L168 Benchmark]: TraceAbstraction took 14678.33 ms. Allocated memory was 302.0 MB in the beginning and 497.0 MB in the end (delta: 195.0 MB). Free memory was 185.8 MB in the beginning and 430.2 MB in the end (delta: -244.5 MB). Peak memory consumption was 182.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,196 INFO L168 Benchmark]: Witness Printer took 704.33 ms. Allocated memory is still 497.0 MB. Free memory was 430.2 MB in the beginning and 344.3 MB in the end (delta: 86.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:40,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 62.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 871.67 ms. Allocated memory is still 123.7 MB. Free memory was 93.3 MB in the beginning and 81.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 297.77 ms. Allocated memory is still 123.7 MB. Free memory was 81.4 MB in the beginning and 61.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 301.39 ms. Allocated memory is still 123.7 MB. Free memory was 61.2 MB in the beginning and 87.0 MB in the end (delta: -25.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6555.42 ms. Allocated memory was 123.7 MB in the beginning and 302.0 MB in the end (delta: 178.3 MB). Free memory was 87.0 MB in the beginning and 185.8 MB in the end (delta: -98.8 MB). Peak memory consumption was 142.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14678.33 ms. Allocated memory was 302.0 MB in the beginning and 497.0 MB in the end (delta: 195.0 MB). Free memory was 185.8 MB in the beginning and 430.2 MB in the end (delta: -244.5 MB). Peak memory consumption was 182.3 MB. Max. memory is 16.1 GB. * Witness Printer took 704.33 ms. Allocated memory is still 497.0 MB. Free memory was 430.2 MB in the beginning and 344.3 MB in the end (delta: 86.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1717]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 777 locations, 103 error locations. Started 1 CEGAR loops. OverallTime: 14610.2ms, OverallIterations: 50, TraceHistogramMax: 1, EmptinessCheckTime: 100.4ms, AutomataDifference: 9482.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28139 SDtfs, 14470 SDslu, 45923 SDs, 0 SdLazy, 5679 SolverSat, 775 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5415.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1589.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=2, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 876.6ms AutomataMinimizationTime, 50 MinimizatonAttempts, 1047 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 168.9ms SsaConstructionTime, 703.8ms SatisfiabilityAnalysisTime, 2479.0ms InterpolantComputationTime, 1229 NumberOfCodeBlocks, 1229 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1179 ConstructedInterpolants, 0 QuantifiedInterpolants, 3988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 50 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 - AllSpecificationsHoldResult: All specifications hold 103 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 07:50:40,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902da45b-a912-4da2-9288-1be6270dc715/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...