./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0235-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 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_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0235-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 142a119248af9a8dd486c46df83e3c9b5196a7d9 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 03:23:39,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:23:39,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:23:39,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:23:39,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:23:39,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:23:39,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:23:39,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:23:39,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:23:39,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:23:39,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:23:39,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:23:39,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:23:39,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:23:39,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:23:39,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:23:39,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:23:39,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:23:39,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:23:39,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:23:39,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:23:39,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:23:39,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:23:39,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:23:39,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:23:39,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:23:39,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:23:39,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:23:39,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:23:39,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:23:39,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:23:39,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:23:39,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:23:39,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:23:39,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:23:39,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:23:39,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:23:39,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:23:39,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:23:39,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:23:39,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:23:39,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 03:23:39,795 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:23:39,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:23:39,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:23:39,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:23:39,809 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:23:39,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:23:39,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:23:39,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:23:39,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:23:39,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:23:39,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:23:39,811 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 03:23:39,811 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 03:23:39,811 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 03:23:39,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:23:39,812 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 03:23:39,812 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 03:23:39,812 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:23:39,813 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:23:39,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:23:39,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:23:39,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:23:39,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:23:39,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:23:39,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:23:39,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:23:39,815 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 03:23:39,816 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 03:23:39,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 03:23:39,817 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_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 -> 142a119248af9a8dd486c46df83e3c9b5196a7d9 [2019-11-20 03:23:40,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:23:40,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:23:40,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:23:40,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:23:40,043 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:23:40,044 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0235-2.i [2019-11-20 03:23:40,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/data/49b441620/bf819376d42b4e78bb7c2dba946b4def/FLAG826676733 [2019-11-20 03:23:40,698 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:23:40,701 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/sv-benchmarks/c/memsafety/test-0235-2.i [2019-11-20 03:23:40,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/data/49b441620/bf819376d42b4e78bb7c2dba946b4def/FLAG826676733 [2019-11-20 03:23:41,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/data/49b441620/bf819376d42b4e78bb7c2dba946b4def [2019-11-20 03:23:41,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:23:41,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 03:23:41,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:23:41,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:23:41,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:23:41,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:41,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3409c829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41, skipping insertion in model container [2019-11-20 03:23:41,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:41,070 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:23:41,131 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:23:41,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:23:41,759 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:23:41,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:23:41,930 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:23:41,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41 WrapperNode [2019-11-20 03:23:41,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:23:41,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:23:41,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:23:41,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:23:41,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:41,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:41,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:41,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:42,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:42,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:42,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... [2019-11-20 03:23:42,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:23:42,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:23:42,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:23:42,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:23:42,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 03:23:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:23:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 03:23:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 03:23:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 03:23:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 03:23:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 03:23:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2019-11-20 03:23:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2019-11-20 03:23:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2019-11-20 03:23:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2019-11-20 03:23:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2019-11-20 03:23:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2019-11-20 03:23:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2019-11-20 03:23:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2019-11-20 03:23:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2019-11-20 03:23:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2019-11-20 03:23:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2019-11-20 03:23:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2019-11-20 03:23:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 03:23:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 03:23:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-20 03:23:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 03:23:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 03:23:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 03:23:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 03:23:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 03:23:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 03:23:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 03:23:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 03:23:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 03:23:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 03:23:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 03:23:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 03:23:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 03:23:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 03:23:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 03:23:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 03:23:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 03:23:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 03:23:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 03:23:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 03:23:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 03:23:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 03:23:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 03:23:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 03:23:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 03:23:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 03:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 03:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 03:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 03:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 03:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 03:23:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 03:23:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 03:23:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 03:23:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 03:23:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 03:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 03:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 03:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 03:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 03:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 03:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 03:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 03:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 03:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 03:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 03:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 03:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 03:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 03:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 03:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 03:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 03:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 03:23:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 03:23:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 03:23:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 03:23:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 03:23:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 03:23:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 03:23:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 03:23:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 03:23:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 03:23:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 03:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 03:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 03:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 03:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 03:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 03:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 03:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 03:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 03:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 03:23:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 03:23:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 03:23:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 03:23:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 03:23:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 03:23:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 03:23:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 03:23:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 03:23:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 03:23:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 03:23:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 03:23:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 03:23:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 03:23:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 03:23:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 03:23:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 03:23:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 03:23:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 03:23:42,156 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-11-20 03:23:42,158 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-11-20 03:23:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 03:23:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-11-20 03:23:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-11-20 03:23:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-11-20 03:23:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-11-20 03:23:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-11-20 03:23:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-11-20 03:23:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-11-20 03:23:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-11-20 03:23:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-11-20 03:23:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-11-20 03:23:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-11-20 03:23:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-11-20 03:23:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-11-20 03:23:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-11-20 03:23:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-11-20 03:23:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-11-20 03:23:42,163 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-11-20 03:23:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-11-20 03:23:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-11-20 03:23:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-11-20 03:23:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-11-20 03:23:42,164 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-11-20 03:23:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-11-20 03:23:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-11-20 03:23:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-11-20 03:23:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-11-20 03:23:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-11-20 03:23:42,165 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-11-20 03:23:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2019-11-20 03:23:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2019-11-20 03:23:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-11-20 03:23:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-11-20 03:23:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2019-11-20 03:23:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2019-11-20 03:23:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2019-11-20 03:23:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-11-20 03:23:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-11-20 03:23:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-11-20 03:23:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-11-20 03:23:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-11-20 03:23:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-11-20 03:23:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2019-11-20 03:23:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 03:23:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 03:23:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 03:23:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2019-11-20 03:23:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2019-11-20 03:23:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 03:23:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 03:23:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2019-11-20 03:23:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2019-11-20 03:23:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2019-11-20 03:23:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2019-11-20 03:23:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2019-11-20 03:23:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:23:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2019-11-20 03:23:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2019-11-20 03:23:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2019-11-20 03:23:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2019-11-20 03:23:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 03:23:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 03:23:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:23:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 03:23:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:23:43,003 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 03:23:43,663 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:23:43,664 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 03:23:43,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:23:43 BoogieIcfgContainer [2019-11-20 03:23:43,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:23:43,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:23:43,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:23:43,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:23:43,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:23:41" (1/3) ... [2019-11-20 03:23:43,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c89bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:23:43, skipping insertion in model container [2019-11-20 03:23:43,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:23:41" (2/3) ... [2019-11-20 03:23:43,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c89bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:23:43, skipping insertion in model container [2019-11-20 03:23:43,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:23:43" (3/3) ... [2019-11-20 03:23:43,677 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0235-2.i [2019-11-20 03:23:43,687 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:23:43,698 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 87 error locations. [2019-11-20 03:23:43,708 INFO L249 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2019-11-20 03:23:43,727 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:23:43,727 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 03:23:43,727 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:23:43,727 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:23:43,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:23:43,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:23:43,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:23:43,728 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:23:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states. [2019-11-20 03:23:43,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 03:23:43,775 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:23:43,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:23:43,777 INFO L410 AbstractCegarLoop]: === Iteration 1 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:23:43,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:23:43,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1960805565, now seen corresponding path program 1 times [2019-11-20 03:23:43,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:23:43,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [742008370] [2019-11-20 03:23:43,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:23:44,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 03:23:44,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:23:44,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:23:44,094 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:23:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:23:44,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [742008370] [2019-11-20 03:23:44,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:23:44,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 03:23:44,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313031935] [2019-11-20 03:23:44,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 03:23:44,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:23:44,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 03:23:44,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:23:44,132 INFO L87 Difference]: Start difference. First operand 266 states. Second operand 2 states. [2019-11-20 03:23:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:23:44,191 INFO L93 Difference]: Finished difference Result 266 states and 296 transitions. [2019-11-20 03:23:44,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 03:23:44,192 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 03:23:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:23:44,211 INFO L225 Difference]: With dead ends: 266 [2019-11-20 03:23:44,212 INFO L226 Difference]: Without dead ends: 263 [2019-11-20 03:23:44,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:23:44,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-11-20 03:23:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2019-11-20 03:23:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-11-20 03:23:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 293 transitions. [2019-11-20 03:23:44,298 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 293 transitions. Word has length 7 [2019-11-20 03:23:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:23:44,298 INFO L462 AbstractCegarLoop]: Abstraction has 263 states and 293 transitions. [2019-11-20 03:23:44,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 03:23:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 293 transitions. [2019-11-20 03:23:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 03:23:44,299 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:23:44,299 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:23:44,511 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:23:44,512 INFO L410 AbstractCegarLoop]: === Iteration 2 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:23:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:23:44,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1020920627, now seen corresponding path program 1 times [2019-11-20 03:23:44,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:23:44,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2051412277] [2019-11-20 03:23:44,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:23:44,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 03:23:44,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:23:44,901 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 [2019-11-20 03:23:44,902 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:23:44,906 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:23:44,906 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:23:44,907 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:23:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:23:44,916 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:23:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:23:44,925 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2051412277] [2019-11-20 03:23:44,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:23:44,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 03:23:44,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866769357] [2019-11-20 03:23:44,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:23:44,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:23:44,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:23:44,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:23:44,929 INFO L87 Difference]: Start difference. First operand 263 states and 293 transitions. Second operand 3 states. [2019-11-20 03:23:45,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:23:45,355 INFO L93 Difference]: Finished difference Result 262 states and 292 transitions. [2019-11-20 03:23:45,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:23:45,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-20 03:23:45,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:23:45,358 INFO L225 Difference]: With dead ends: 262 [2019-11-20 03:23:45,358 INFO L226 Difference]: Without dead ends: 262 [2019-11-20 03:23:45,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:23:45,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2019-11-20 03:23:45,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2019-11-20 03:23:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-11-20 03:23:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 292 transitions. [2019-11-20 03:23:45,386 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 292 transitions. Word has length 12 [2019-11-20 03:23:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:23:45,386 INFO L462 AbstractCegarLoop]: Abstraction has 262 states and 292 transitions. [2019-11-20 03:23:45,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:23:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 292 transitions. [2019-11-20 03:23:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 03:23:45,387 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:23:45,387 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:23:45,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:23:45,589 INFO L410 AbstractCegarLoop]: === Iteration 3 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:23:45,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:23:45,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1020920626, now seen corresponding path program 1 times [2019-11-20 03:23:45,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:23:45,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1315586981] [2019-11-20 03:23:45,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:23:45,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 03:23:45,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:23:45,956 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 8 treesize of output 7 [2019-11-20 03:23:45,956 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:23:45,981 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:23:45,981 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:23:45,982 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2019-11-20 03:23:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:23:46,074 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:23:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:23:46,808 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1315586981] [2019-11-20 03:23:46,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:23:46,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 03:23:46,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898297044] [2019-11-20 03:23:46,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 03:23:46,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:23:46,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 03:23:46,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-20 03:23:46,809 INFO L87 Difference]: Start difference. First operand 262 states and 292 transitions. Second operand 10 states. [2019-11-20 03:23:48,156 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-11-20 03:23:50,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:23:50,963 INFO L93 Difference]: Finished difference Result 272 states and 302 transitions. [2019-11-20 03:23:50,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 03:23:50,966 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-20 03:23:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:23:50,968 INFO L225 Difference]: With dead ends: 272 [2019-11-20 03:23:50,968 INFO L226 Difference]: Without dead ends: 272 [2019-11-20 03:23:50,969 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-20 03:23:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-11-20 03:23:50,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2019-11-20 03:23:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2019-11-20 03:23:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 302 transitions. [2019-11-20 03:23:50,986 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 302 transitions. Word has length 12 [2019-11-20 03:23:50,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:23:50,987 INFO L462 AbstractCegarLoop]: Abstraction has 272 states and 302 transitions. [2019-11-20 03:23:50,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 03:23:50,987 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 302 transitions. [2019-11-20 03:23:50,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-11-20 03:23:50,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:23:50,994 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:23:51,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:23:51,198 INFO L410 AbstractCegarLoop]: === Iteration 4 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:23:51,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:23:51,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1342050955, now seen corresponding path program 1 times [2019-11-20 03:23:51,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:23:51,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [261091172] [2019-11-20 03:23:51,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:23:51,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 03:23:51,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:23:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-11-20 03:23:52,283 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:23:53,784 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-11-20 03:23:53,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:23:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-11-20 03:23:54,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [261091172] [2019-11-20 03:23:54,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 03:23:54,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2019-11-20 03:23:54,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864694689] [2019-11-20 03:23:54,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 03:23:54,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:23:54,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 03:23:54,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 03:23:54,069 INFO L87 Difference]: Start difference. First operand 272 states and 302 transitions. Second operand 8 states. [2019-11-20 03:23:54,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:23:54,623 INFO L93 Difference]: Finished difference Result 289 states and 319 transitions. [2019-11-20 03:23:54,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 03:23:54,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2019-11-20 03:23:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:23:54,627 INFO L225 Difference]: With dead ends: 289 [2019-11-20 03:23:54,627 INFO L226 Difference]: Without dead ends: 273 [2019-11-20 03:23:54,628 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-11-20 03:23:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-11-20 03:23:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2019-11-20 03:23:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2019-11-20 03:23:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 303 transitions. [2019-11-20 03:23:54,644 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 303 transitions. Word has length 123 [2019-11-20 03:23:54,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:23:54,645 INFO L462 AbstractCegarLoop]: Abstraction has 273 states and 303 transitions. [2019-11-20 03:23:54,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 03:23:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 303 transitions. [2019-11-20 03:23:54,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-11-20 03:23:54,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:23:54,652 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:23:54,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:23:54,858 INFO L410 AbstractCegarLoop]: === Iteration 5 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:23:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:23:54,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1582969187, now seen corresponding path program 1 times [2019-11-20 03:23:54,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:23:54,859 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [944736077] [2019-11-20 03:23:54,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:23:55,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 03:23:55,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:23:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 95 proven. 1 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2019-11-20 03:23:55,967 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:23:57,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:23:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2019-11-20 03:23:58,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [944736077] [2019-11-20 03:23:58,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:23:58,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2019-11-20 03:23:58,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559574020] [2019-11-20 03:23:58,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 03:23:58,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:23:58,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 03:23:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2019-11-20 03:23:58,096 INFO L87 Difference]: Start difference. First operand 273 states and 303 transitions. Second operand 15 states. [2019-11-20 03:23:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:23:58,862 INFO L93 Difference]: Finished difference Result 290 states and 320 transitions. [2019-11-20 03:23:58,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 03:23:58,866 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 129 [2019-11-20 03:23:58,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:23:58,870 INFO L225 Difference]: With dead ends: 290 [2019-11-20 03:23:58,872 INFO L226 Difference]: Without dead ends: 274 [2019-11-20 03:23:58,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2019-11-20 03:23:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-20 03:23:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2019-11-20 03:23:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2019-11-20 03:23:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 304 transitions. [2019-11-20 03:23:58,894 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 304 transitions. Word has length 129 [2019-11-20 03:23:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:23:58,897 INFO L462 AbstractCegarLoop]: Abstraction has 274 states and 304 transitions. [2019-11-20 03:23:58,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 03:23:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 304 transitions. [2019-11-20 03:23:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-20 03:23:58,903 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:23:58,903 INFO L410 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:23:59,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:23:59,112 INFO L410 AbstractCegarLoop]: === Iteration 6 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:23:59,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:23:59,113 INFO L82 PathProgramCache]: Analyzing trace with hash 383915659, now seen corresponding path program 2 times [2019-11-20 03:23:59,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:23:59,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [268070019] [2019-11-20 03:23:59,114 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/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 [2019-11-20 03:23:59,873 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 03:23:59,873 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 03:23:59,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 03:23:59,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:24:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-11-20 03:24:00,241 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:24:01,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:24:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-11-20 03:24:02,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [268070019] [2019-11-20 03:24:02,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:24:02,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-11-20 03:24:02,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451713991] [2019-11-20 03:24:02,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 03:24:02,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:24:02,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 03:24:02,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2019-11-20 03:24:02,105 INFO L87 Difference]: Start difference. First operand 274 states and 304 transitions. Second operand 17 states. [2019-11-20 03:24:03,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:24:03,213 INFO L93 Difference]: Finished difference Result 291 states and 321 transitions. [2019-11-20 03:24:03,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 03:24:03,230 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 135 [2019-11-20 03:24:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:24:03,233 INFO L225 Difference]: With dead ends: 291 [2019-11-20 03:24:03,234 INFO L226 Difference]: Without dead ends: 275 [2019-11-20 03:24:03,234 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 251 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2019-11-20 03:24:03,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-11-20 03:24:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2019-11-20 03:24:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-11-20 03:24:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 305 transitions. [2019-11-20 03:24:03,249 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 305 transitions. Word has length 135 [2019-11-20 03:24:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:24:03,249 INFO L462 AbstractCegarLoop]: Abstraction has 275 states and 305 transitions. [2019-11-20 03:24:03,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 03:24:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 305 transitions. [2019-11-20 03:24:03,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-20 03:24:03,256 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:24:03,256 INFO L410 BasicCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:24:03,469 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:24:03,473 INFO L410 AbstractCegarLoop]: === Iteration 7 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 03:24:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:24:03,473 INFO L82 PathProgramCache]: Analyzing trace with hash -66364899, now seen corresponding path program 3 times [2019-11-20 03:24:03,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:24:03,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1825590091] [2019-11-20 03:24:03,480 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd3bd67-e7ec-4dba-aba7-6ff125aa3713/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:24:03,962 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-20 03:24:03,962 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 03:24:03,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 03:24:03,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:24:03,987 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 [2019-11-20 03:24:03,987 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:24:03,990 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:24:03,990 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:24:03,991 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:24:04,134 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 [2019-11-20 03:24:04,135 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:24:04,137 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:24:04,137 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. [2019-11-20 03:24:04,138 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:5 [2019-11-20 03:24:04,252 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 03:24:04,273 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:24:04,273 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 14 treesize of output 25 [2019-11-20 03:24:04,274 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:24:04,289 INFO L567 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-11-20 03:24:04,289 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. [2019-11-20 03:24:04,290 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2019-11-20 03:24:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 259 proven. 7 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2019-11-20 03:24:04,330 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:24:04,744 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:24:04,745 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 03:24:04,748 INFO L168 Benchmark]: Toolchain (without parser) took 23716.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.4 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -253.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:24:04,749 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:24:04,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:24:04,750 INFO L168 Benchmark]: Boogie Preprocessor took 104.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:24:04,750 INFO L168 Benchmark]: RCFGBuilder took 1631.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:24:04,751 INFO L168 Benchmark]: TraceAbstraction took 21077.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -179.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:24:04,757 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 898.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.22 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 1631.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.9 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21077.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -179.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...