./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb5e103dbe59a250cbe01613b667895523582d5d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: incompatible size --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:52:25,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:25,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:25,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:25,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:25,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:25,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:25,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:25,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:25,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:25,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:25,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:25,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:25,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:25,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:25,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:25,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:25,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:25,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:25,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:25,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:25,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:25,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:25,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:25,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:25,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:25,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:25,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:25,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:25,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:25,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:25,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:25,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:25,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:25,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:25,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:25,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:25,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:25,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:25,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:25,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:25,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-25 08:52:25,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:25,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:25,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:25,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:25,201 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:25,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:25,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:25,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:52:25,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:25,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:25,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:25,203 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:52:25,203 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:52:25,203 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:52:25,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:25,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:52:25,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:52:25,205 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:25,205 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:25,205 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:25,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:25,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:25,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:25,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:25,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:25,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:25,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:25,207 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:52:25,208 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:52:25,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:52:25,208 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer 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 -> Automizer 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 -> eb5e103dbe59a250cbe01613b667895523582d5d [2019-11-25 08:52:25,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:25,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:25,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:25,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:25,405 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:25,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-11-25 08:52:25,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/data/42d5f7a92/5c35c861c817466b8e2ca0c7e70e73e3/FLAG019026547 [2019-11-25 08:52:25,996 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:25,997 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2019-11-25 08:52:26,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/data/42d5f7a92/5c35c861c817466b8e2ca0c7e70e73e3/FLAG019026547 [2019-11-25 08:52:26,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/data/42d5f7a92/5c35c861c817466b8e2ca0c7e70e73e3 [2019-11-25 08:52:26,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:26,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:52:26,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:26,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:26,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:26,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a19833d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26, skipping insertion in model container [2019-11-25 08:52:26,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:26,373 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:26,728 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:52:26,728 INFO L968 CHandler]: at location: C: (int *)malloc(sizeof(int)) [518] [2019-11-25 08:52:26,728 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:26,729 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:52:26,730 INFO L968 CHandler]: at location: C: (int *)malloc(sizeof(int)) [519] [2019-11-25 08:52:26,730 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:52:26,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:26,751 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-25 08:52:26,757 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:26,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:26,792 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:26,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:26,927 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:26,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26 WrapperNode [2019-11-25 08:52:26,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:26,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:26,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:26,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:26,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... [2019-11-25 08:52:26,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:26,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:26,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:26,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:27,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:52:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2019-11-25 08:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2019-11-25 08:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:52:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-25 08:52:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:52:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:52:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:52:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:52:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:52:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:52:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:52:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2019-11-25 08:52:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:52:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:52:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:52:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:52:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2019-11-25 08:52:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:52:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:52:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:52:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:52:27,776 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:27,776 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-25 08:52:27,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:27 BoogieIcfgContainer [2019-11-25 08:52:27,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:27,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:27,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:27,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:27,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:26" (1/3) ... [2019-11-25 08:52:27,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd9933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:27, skipping insertion in model container [2019-11-25 08:52:27,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:26" (2/3) ... [2019-11-25 08:52:27,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd9933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:27, skipping insertion in model container [2019-11-25 08:52:27,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:27" (3/3) ... [2019-11-25 08:52:27,789 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0019_1-1.i [2019-11-25 08:52:27,798 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:27,807 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2019-11-25 08:52:27,818 INFO L249 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2019-11-25 08:52:27,836 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:27,836 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:52:27,837 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:27,837 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:27,837 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:27,837 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:27,837 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:27,837 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-11-25 08:52:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:52:27,866 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:27,867 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:27,867 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-25 08:52:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:27,874 INFO L82 PathProgramCache]: Analyzing trace with hash -938857155, now seen corresponding path program 1 times [2019-11-25 08:52:27,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:27,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1206196863] [2019-11-25 08:52:27,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:28,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:52:28,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:28,198 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:28,198 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:28,205 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:28,206 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:28,206 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:52:28,265 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:28,266 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-25 08:52:28,269 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:28,298 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-25 08:52:28,299 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:28,299 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-25 08:52:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:28,321 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:28,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1206196863] [2019-11-25 08:52:28,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:28,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-25 08:52:28,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268927170] [2019-11-25 08:52:28,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:28,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:28,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:28,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:28,443 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states. [2019-11-25 08:52:28,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:28,995 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-11-25 08:52:28,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:52:28,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-25 08:52:28,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:29,008 INFO L225 Difference]: With dead ends: 70 [2019-11-25 08:52:29,008 INFO L226 Difference]: Without dead ends: 67 [2019-11-25 08:52:29,010 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-11-25 08:52:29,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-11-25 08:52:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-11-25 08:52:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2019-11-25 08:52:29,067 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 9 [2019-11-25 08:52:29,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:29,068 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2019-11-25 08:52:29,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-11-25 08:52:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:52:29,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:29,070 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:29,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:29,271 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-25 08:52:29,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:29,271 INFO L82 PathProgramCache]: Analyzing trace with hash -938857154, now seen corresponding path program 1 times [2019-11-25 08:52:29,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:29,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1133423704] [2019-11-25 08:52:29,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:29,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-25 08:52:29,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:29,495 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:29,495 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:29,505 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:29,509 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:29,509 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:29,519 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:29,519 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:29,520 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-25 08:52:29,579 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:29,579 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-25 08:52:29,580 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:29,599 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:29,606 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-25 08:52:29,607 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:29,627 INFO L567 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2019-11-25 08:52:29,627 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:29,628 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2019-11-25 08:52:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:29,650 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:29,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-25 08:52:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:29,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1133423704] [2019-11-25 08:52:29,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:29,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-25 08:52:29,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204203431] [2019-11-25 08:52:29,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:29,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:29,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:29,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:29,988 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 8 states. [2019-11-25 08:52:31,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:31,123 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-11-25 08:52:31,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:31,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-25 08:52:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:31,125 INFO L225 Difference]: With dead ends: 65 [2019-11-25 08:52:31,126 INFO L226 Difference]: Without dead ends: 65 [2019-11-25 08:52:31,126 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:52:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-25 08:52:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-11-25 08:52:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-25 08:52:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2019-11-25 08:52:31,135 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 9 [2019-11-25 08:52:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:31,135 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2019-11-25 08:52:31,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-11-25 08:52:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:52:31,136 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:31,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:31,339 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:31,353 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-25 08:52:31,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:31,353 INFO L82 PathProgramCache]: Analyzing trace with hash -298593473, now seen corresponding path program 1 times [2019-11-25 08:52:31,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:31,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2022545644] [2019-11-25 08:52:31,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:31,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-25 08:52:31,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:31,574 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:31,575 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,585 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,589 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:31,589 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,598 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,598 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,599 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-25 08:52:31,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:31,644 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-25 08:52:31,645 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,660 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:31,676 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-25 08:52:31,677 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,688 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,689 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:31,689 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2019-11-25 08:52:31,769 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_67|], 3=[|v_#length_43|]} [2019-11-25 08:52:31,789 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,789 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-25 08:52:31,790 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,815 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,853 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:31,853 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 46 [2019-11-25 08:52:31,855 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:31,900 INFO L567 ElimStorePlain]: treesize reduction 22, result has 46.3 percent of original size [2019-11-25 08:52:31,901 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:31,901 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:19 [2019-11-25 08:52:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:31,922 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:31,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-25 08:52:32,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-25 08:52:32,150 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:32,151 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2019-11-25 08:52:32,152 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:32,178 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:32,179 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2019-11-25 08:52:32,179 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:32,205 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:32,205 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2019-11-25 08:52:32,206 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:32,277 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:32,278 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2019-11-25 08:52:32,278 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:86, output treesize:53 [2019-11-25 08:52:32,380 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-25 08:52:32,795 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-25 08:52:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:32,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2022545644] [2019-11-25 08:52:32,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:32,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2019-11-25 08:52:32,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773051238] [2019-11-25 08:52:32,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-25 08:52:32,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:32,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-25 08:52:32,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:32,812 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 11 states. [2019-11-25 08:52:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:33,792 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-11-25 08:52:33,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:52:33,793 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2019-11-25 08:52:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:33,794 INFO L225 Difference]: With dead ends: 63 [2019-11-25 08:52:33,794 INFO L226 Difference]: Without dead ends: 63 [2019-11-25 08:52:33,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:52:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-25 08:52:33,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-11-25 08:52:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-25 08:52:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2019-11-25 08:52:33,801 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 11 [2019-11-25 08:52:33,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:33,801 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2019-11-25 08:52:33,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-25 08:52:33,801 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-11-25 08:52:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:52:33,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:33,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:34,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:34,005 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-25 08:52:34,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:34,005 INFO L82 PathProgramCache]: Analyzing trace with hash 814480769, now seen corresponding path program 1 times [2019-11-25 08:52:34,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:34,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1086662553] [2019-11-25 08:52:34,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:34,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:52:34,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:34,196 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:34,196 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:34,203 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,203 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-25 08:52:34,224 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:34,225 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,245 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:34,246 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,246 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2019-11-25 08:52:34,385 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2019-11-25 08:52:34,385 INFO L343 Elim1Store]: treesize reduction 12, result has 86.2 percent of original size [2019-11-25 08:52:34,386 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 91 [2019-11-25 08:52:34,387 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,446 INFO L567 ElimStorePlain]: treesize reduction 40, result has 46.7 percent of original size [2019-11-25 08:52:34,447 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,447 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:35 [2019-11-25 08:52:34,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:34,500 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2019-11-25 08:52:34,501 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,535 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:34,536 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:34,537 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:53 [2019-11-25 08:52:34,594 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2019-11-25 08:52:34,596 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:34,609 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:34,610 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:34,610 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:26 [2019-11-25 08:52:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:34,637 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:34,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1086662553] [2019-11-25 08:52:34,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:34,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 12 [2019-11-25 08:52:34,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457022109] [2019-11-25 08:52:34,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-25 08:52:34,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:34,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-25 08:52:34,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:52:34,784 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 13 states. [2019-11-25 08:52:35,132 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-11-25 08:52:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:35,537 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-11-25 08:52:35,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:52:35,538 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2019-11-25 08:52:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:35,539 INFO L225 Difference]: With dead ends: 62 [2019-11-25 08:52:35,539 INFO L226 Difference]: Without dead ends: 62 [2019-11-25 08:52:35,540 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2019-11-25 08:52:35,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-25 08:52:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-25 08:52:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-25 08:52:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-11-25 08:52:35,548 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 13 [2019-11-25 08:52:35,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:35,548 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-11-25 08:52:35,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-25 08:52:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-11-25 08:52:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:52:35,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:35,549 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:35,756 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:35,756 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-25 08:52:35,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:35,757 INFO L82 PathProgramCache]: Analyzing trace with hash 814480770, now seen corresponding path program 1 times [2019-11-25 08:52:35,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:35,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1267705775] [2019-11-25 08:52:35,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:35,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-25 08:52:35,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:36,002 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:36,002 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,019 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,023 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-25 08:52:36,023 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,034 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,035 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,035 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2019-11-25 08:52:36,066 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:36,066 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,092 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,098 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:36,098 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,115 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,116 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,116 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:33 [2019-11-25 08:52:36,171 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,172 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2019-11-25 08:52:36,172 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,199 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,205 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2019-11-25 08:52:36,206 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,226 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,227 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,227 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:33 [2019-11-25 08:52:36,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:36,274 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-25 08:52:36,274 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,303 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:36,312 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2019-11-25 08:52:36,313 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,333 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,334 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,334 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:47 [2019-11-25 08:52:36,381 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2019-11-25 08:52:36,382 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:36,400 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,404 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-25 08:52:36,404 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:36,413 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:36,414 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:36,414 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:20 [2019-11-25 08:52:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:36,450 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:36,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-25 08:52:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:36,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1267705775] [2019-11-25 08:52:36,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:36,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 12 [2019-11-25 08:52:36,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380095835] [2019-11-25 08:52:36,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-25 08:52:36,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:36,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-25 08:52:36,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:52:36,950 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 13 states. [2019-11-25 08:52:37,341 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-11-25 08:52:37,491 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-11-25 08:52:38,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:38,125 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-11-25 08:52:38,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:52:38,126 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2019-11-25 08:52:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:38,127 INFO L225 Difference]: With dead ends: 61 [2019-11-25 08:52:38,127 INFO L226 Difference]: Without dead ends: 61 [2019-11-25 08:52:38,128 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2019-11-25 08:52:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-25 08:52:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-25 08:52:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-25 08:52:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2019-11-25 08:52:38,134 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 13 [2019-11-25 08:52:38,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:38,135 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2019-11-25 08:52:38,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-25 08:52:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-11-25 08:52:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:52:38,136 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:38,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:38,339 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:38,339 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-25 08:52:38,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:38,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1926354070, now seen corresponding path program 1 times [2019-11-25 08:52:38,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:38,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1742632632] [2019-11-25 08:52:38,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af65b438-b4f1-4861-a23e-5b6188cab4e6/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:38,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-25 08:52:38,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:38,661 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-25 08:52:38,661 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,669 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:38,669 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,669 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-11-25 08:52:38,701 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:38,701 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-11-25 08:52:38,702 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,748 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-11-25 08:52:38,749 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,749 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2019-11-25 08:52:38,780 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_32|], 2=[|v_#memory_$Pointer$.offset_31|]} [2019-11-25 08:52:38,788 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-25 08:52:38,789 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,828 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:38,835 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:38,836 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-25 08:52:38,837 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,871 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:38,872 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,872 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:49, output treesize:27 [2019-11-25 08:52:38,916 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-25 08:52:38,916 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:38,932 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:38,932 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:30 [2019-11-25 08:52:38,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:38,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:38,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:38,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-25 08:52:39,009 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:39,009 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 96 [2019-11-25 08:52:39,010 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:39,082 INFO L567 ElimStorePlain]: treesize reduction 24, result has 76.7 percent of original size [2019-11-25 08:52:39,083 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:39,083 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:128, output treesize:79 [2019-11-25 08:52:39,181 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:39,181 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 74 treesize of output 29 [2019-11-25 08:52:39,182 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:39,189 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:39,189 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:39,190 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:79, output treesize:11 [2019-11-25 08:52:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:39,226 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:39,256 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:39,342 INFO L567 ElimStorePlain]: treesize reduction 31, result has 76.9 percent of original size [2019-11-25 08:52:39,343 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:52:39,343 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:103 [2019-11-25 08:52:41,351 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_alloc_data_#t~mem4.base|))) (let ((.cse3 (store .cse1 (bvadd |c_alloc_data_#t~mem4.offset| (_ bv2 32)) v_DerPreprocessor_1))) (let ((.cse2 (select .cse3 |c_alloc_data_#t~mem4.offset|)) (.cse0 (store |c_#memory_$Pointer$.base| |c_alloc_data_#t~mem4.base| .cse3))) (or (not (= .cse0 (store |c_#memory_$Pointer$.base| |c_alloc_data_#t~mem4.base| (store .cse1 (bvadd |c_alloc_data_#t~mem4.offset| (_ bv3 32)) .cse2)))) (not (= .cse2 v_DerPreprocessor_1)) (not (= .cse0 (store |c_#memory_$Pointer$.base| |c_alloc_data_#t~mem4.base| (store .cse1 (bvadd |c_alloc_data_#t~mem4.offset| (_ bv1 32)) .cse2)))) (= (bvadd (select |c_#valid| (select (select .cse0 c_alloc_data_~pdata.base) (bvadd c_alloc_data_~pdata.offset (_ bv4 32)))) (_ bv1 1)) (_ bv0 1))))))) is different from false [2019-11-25 08:52:43,358 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_alloc_data_~pdata.base) c_alloc_data_~pdata.offset))) (let ((.cse3 (select |c_#memory_$Pointer$.base| .cse2)) (.cse4 (select (select |c_#memory_$Pointer$.offset| c_alloc_data_~pdata.base) c_alloc_data_~pdata.offset))) (let ((.cse5 (store .cse3 (bvadd .cse4 (_ bv2 32)) v_DerPreprocessor_1))) (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse2 .cse5)) (.cse0 (select .cse5 .cse4))) (or (not (= v_DerPreprocessor_1 .cse0)) (= (_ bv1 1) (select |c_#valid| (select (select .cse1 c_alloc_data_~pdata.base) (bvadd c_alloc_data_~pdata.offset (_ bv4 32))))) (not (= .cse1 (store |c_#memory_$Pointer$.base| .cse2 (store .cse3 (bvadd .cse4 (_ bv1 32)) .cse0)))) (not (= .cse1 (store |c_#memory_$Pointer$.base| .cse2 (store .cse3 (bvadd .cse4 (_ bv3 32)) .cse0)))))))))) is different from false [2019-11-25 08:52:43,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:43,567 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-25 08:52:43,571 INFO L168 Benchmark]: Toolchain (without parser) took 17271.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 944.7 MB in the beginning and 937.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 204.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,571 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:43,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,572 INFO L168 Benchmark]: Boogie Preprocessor took 69.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,573 INFO L168 Benchmark]: RCFGBuilder took 779.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,573 INFO L168 Benchmark]: TraceAbstraction took 15791.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 937.4 MB in the end (delta: 140.1 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:43,576 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 623.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 779.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15791.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 937.4 MB in the end (delta: 140.1 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...