./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:40:17,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:40:17,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:40:17,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:40:17,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:40:17,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:40:17,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:40:17,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:40:17,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:40:17,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:40:17,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:40:17,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:40:17,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:40:17,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:40:17,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:40:17,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:40:17,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:40:17,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:40:17,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:40:17,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:40:17,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:40:17,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:40:17,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:40:17,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:40:17,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:40:17,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:40:17,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:40:17,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:40:17,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:40:17,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:40:17,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:40:17,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:40:17,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:40:17,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:40:17,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:40:17,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:40:17,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:40:17,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:40:17,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:40:17,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:40:17,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:40:17,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-24 09:40:17,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:40:17,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:40:17,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:40:17,844 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:40:17,844 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:40:17,845 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:40:17,845 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:40:17,845 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:40:17,846 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:40:17,846 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:40:17,847 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:40:17,847 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:40:17,847 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:40:17,848 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:40:17,848 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:40:17,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 09:40:17,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 09:40:17,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:40:17,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:40:17,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 09:40:17,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:40:17,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:40:17,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:40:17,858 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 09:40:17,859 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 09:40:17,859 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 09:40:17,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:40:17,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:40:17,860 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:40:17,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:40:17,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:40:17,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:40:17,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:40:17,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:40:17,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:40:17,862 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:40:17,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:40:17,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:40:17,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:40:17,863 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b [2021-10-24 09:40:18,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:40:18,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:40:18,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:40:18,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:40:18,161 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:40:18,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2021-10-24 09:40:18,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/0544ade4c/20ee92561fd944a0a22e90555fbd000f/FLAG0a5631e93 [2021-10-24 09:40:18,795 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:40:18,796 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2021-10-24 09:40:18,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/0544ade4c/20ee92561fd944a0a22e90555fbd000f/FLAG0a5631e93 [2021-10-24 09:40:19,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/0544ade4c/20ee92561fd944a0a22e90555fbd000f [2021-10-24 09:40:19,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:40:19,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:40:19,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:40:19,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:40:19,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:40:19,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:40:19" (1/1) ... [2021-10-24 09:40:19,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd01443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:19, skipping insertion in model container [2021-10-24 09:40:19,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:40:19" (1/1) ... [2021-10-24 09:40:19,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:40:19,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:40:19,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:40:19,553 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 09:40:19,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4dad6b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:19, skipping insertion in model container [2021-10-24 09:40:19,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:40:19,556 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 09:40:19,558 INFO L168 Benchmark]: Toolchain (without parser) took 444.31 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.3 MB in the beginning and 94.7 MB in the end (delta: -37.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:40:19,560 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory was 66.7 MB in the beginning and 66.7 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:40:19,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.88 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.1 MB in the beginning and 94.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:40:19,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory was 66.7 MB in the beginning and 66.7 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 441.88 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.1 MB in the beginning and 94.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 643]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:40:21,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:40:21,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:40:21,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:40:21,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:40:21,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:40:21,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:40:21,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:40:21,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:40:21,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:40:21,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:40:21,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:40:21,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:40:21,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:40:21,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:40:21,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:40:21,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:40:21,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:40:21,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:40:21,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:40:21,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:40:21,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:40:21,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:40:21,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:40:21,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:40:21,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:40:21,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:40:21,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:40:21,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:40:21,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:40:21,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:40:21,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:40:21,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:40:21,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:40:21,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:40:21,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:40:21,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:40:21,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:40:21,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:40:21,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:40:21,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:40:21,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-24 09:40:21,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:40:21,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:40:21,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:40:21,923 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:40:21,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:40:21,924 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:40:21,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:40:21,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:40:21,924 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:40:21,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 09:40:21,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 09:40:21,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:40:21,927 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:40:21,928 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 09:40:21,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:40:21,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:40:21,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:40:21,929 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 09:40:21,929 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 09:40:21,929 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 09:40:21,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:40:21,929 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:40:21,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:40:21,930 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:40:21,930 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:40:21,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:40:21,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:40:21,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:40:21,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:40:21,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:40:21,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:40:21,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:40:21,932 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:40:21,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:40:21,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:40:21,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:40:21,933 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0176377c3fa036d8b42b70bf41d842353f196a854b997aa0bf5f176a7ad1942b [2021-10-24 09:40:22,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:40:22,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:40:22,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:40:22,334 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:40:22,334 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:40:22,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2021-10-24 09:40:22,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/57a5ce7db/6aea20d2140f4ed4be0c2cbc4da98fa9/FLAGf911a9c9f [2021-10-24 09:40:22,965 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:40:22,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/sv-benchmarks/c/memsafety/test-memleak_nexttime.i [2021-10-24 09:40:22,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/57a5ce7db/6aea20d2140f4ed4be0c2cbc4da98fa9/FLAGf911a9c9f [2021-10-24 09:40:23,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/data/57a5ce7db/6aea20d2140f4ed4be0c2cbc4da98fa9 [2021-10-24 09:40:23,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:40:23,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:40:23,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:40:23,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:40:23,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:40:23,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:23,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a6ceb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23, skipping insertion in model container [2021-10-24 09:40:23,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:23,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:40:23,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:40:23,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:40:23,791 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 09:40:23,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:40:23,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:40:23,858 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:40:23,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:40:23,958 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:40:23,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23 WrapperNode [2021-10-24 09:40:23,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:40:23,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:40:23,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:40:23,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:40:23,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:23,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:40:24,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:40:24,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:40:24,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:40:24,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:40:24,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:40:24,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:40:24,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:40:24,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (1/1) ... [2021-10-24 09:40:24,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:40:24,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:40:24,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:40:24,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:40:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-24 09:40:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-24 09:40:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-10-24 09:40:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 09:40:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:40:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 09:40:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 09:40:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-24 09:40:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:40:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-10-24 09:40:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:40:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:40:24,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:40:24,663 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-24 09:40:24,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:40:24 BoogieIcfgContainer [2021-10-24 09:40:24,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:40:24,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:40:24,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:40:24,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:40:24,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:40:23" (1/3) ... [2021-10-24 09:40:24,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60afcfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:40:24, skipping insertion in model container [2021-10-24 09:40:24,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:40:23" (2/3) ... [2021-10-24 09:40:24,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60afcfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:40:24, skipping insertion in model container [2021-10-24 09:40:24,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:40:24" (3/3) ... [2021-10-24 09:40:24,673 INFO L111 eAbstractionObserver]: Analyzing ICFG test-memleak_nexttime.i [2021-10-24 09:40:24,678 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:40:24,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-10-24 09:40:24,722 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:40:24,728 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 09:40:24,728 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-10-24 09:40:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-24 09:40:24,748 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:24,749 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-24 09:40:24,750 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:24,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:24,755 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-10-24 09:40:24,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:24,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622550442] [2021-10-24 09:40:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:24,769 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:24,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:24,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:24,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:40:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:24,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:40:24,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:25,051 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-24 09:40:25,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-24 09:40:25,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-24 09:40:25,396 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-10-24 09:40:25,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 23 treesize of output 35 [2021-10-24 09:40:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:25,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:25,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-10-24 09:40:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:27,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:27,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622550442] [2021-10-24 09:40:27,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622550442] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:27,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:40:27,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-24 09:40:27,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809441682] [2021-10-24 09:40:27,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:40:27,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:27,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:40:27,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-10-24 09:40:27,642 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:27,958 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-24 09:40:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:40:27,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-24 09:40:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:27,968 INFO L225 Difference]: With dead ends: 36 [2021-10-24 09:40:27,968 INFO L226 Difference]: Without dead ends: 34 [2021-10-24 09:40:27,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2117.8ms TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-24 09:40:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-24 09:40:28,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-24 09:40:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-10-24 09:40:28,006 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 3 [2021-10-24 09:40:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:28,006 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-10-24 09:40:28,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-10-24 09:40:28,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 09:40:28,007 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:28,008 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 09:40:28,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:28,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:40:28,219 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:28,220 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2021-10-24 09:40:28,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:28,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547608292] [2021-10-24 09:40:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:28,221 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:28,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:28,223 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:28,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:40:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:28,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:40:28,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:28,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-24 09:40:28,317 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-24 09:40:28,317 INFO L388 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-24 09:40:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:28,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:28,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:28,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547608292] [2021-10-24 09:40:28,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547608292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:28,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:40:28,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:40:28,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224042805] [2021-10-24 09:40:28,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:40:28,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:28,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:40:28,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:40:28,371 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:28,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:28,476 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-10-24 09:40:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:40:28,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-24 09:40:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:28,478 INFO L225 Difference]: With dead ends: 33 [2021-10-24 09:40:28,479 INFO L226 Difference]: Without dead ends: 33 [2021-10-24 09:40:28,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:40:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-24 09:40:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-24 09:40:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-10-24 09:40:28,483 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 4 [2021-10-24 09:40:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:28,484 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-10-24 09:40:28,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-10-24 09:40:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 09:40:28,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:28,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 09:40:28,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:28,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:40:28,698 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:28,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:28,699 INFO L82 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2021-10-24 09:40:28,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:28,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642554241] [2021-10-24 09:40:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:28,700 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:28,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:28,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:28,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:40:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:28,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 09:40:28,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:28,829 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-24 09:40:28,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-24 09:40:28,913 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-24 09:40:28,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-24 09:40:29,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2021-10-24 09:40:29,483 INFO L354 Elim1Store]: treesize reduction 85, result has 43.0 percent of original size [2021-10-24 09:40:29,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 115 [2021-10-24 09:40:29,591 INFO L354 Elim1Store]: treesize reduction 7, result has 85.7 percent of original size [2021-10-24 09:40:29,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 145 [2021-10-24 09:40:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:31,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:32,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-10-24 09:40:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:32,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:32,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642554241] [2021-10-24 09:40:32,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642554241] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:32,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:40:32,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-24 09:40:32,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536621243] [2021-10-24 09:40:32,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:40:32,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:40:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:40:32,235 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:39,154 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-10-24 09:40:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:40:39,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 09:40:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:39,156 INFO L225 Difference]: With dead ends: 43 [2021-10-24 09:40:39,156 INFO L226 Difference]: Without dead ends: 43 [2021-10-24 09:40:39,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 364.0ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-24 09:40:39,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-24 09:40:39,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-24 09:40:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-10-24 09:40:39,161 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 5 [2021-10-24 09:40:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:39,161 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-10-24 09:40:39,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-24 09:40:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 09:40:39,162 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:39,162 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 09:40:39,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:39,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:40:39,363 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:39,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:39,364 INFO L82 PathProgramCache]: Analyzing trace with hash 889475910, now seen corresponding path program 1 times [2021-10-24 09:40:39,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:39,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513985201] [2021-10-24 09:40:39,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:39,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:39,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:39,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:39,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:40:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:39,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:40:39,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:39,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2021-10-24 09:40:39,502 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-24 09:40:39,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2021-10-24 09:40:39,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-10-24 09:40:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:39,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:39,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:39,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513985201] [2021-10-24 09:40:39,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513985201] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:39,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:40:39,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 09:40:39,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383584946] [2021-10-24 09:40:39,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:40:39,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:39,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:40:39,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:40:39,776 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:39,959 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2021-10-24 09:40:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:40:39,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 09:40:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:39,961 INFO L225 Difference]: With dead ends: 30 [2021-10-24 09:40:39,961 INFO L226 Difference]: Without dead ends: 30 [2021-10-24 09:40:39,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:40:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-24 09:40:39,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-24 09:40:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:39,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-10-24 09:40:39,966 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 6 [2021-10-24 09:40:39,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:39,967 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-10-24 09:40:39,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-10-24 09:40:39,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 09:40:39,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:39,968 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:40:39,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:40,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:40:40,176 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:40,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:40,176 INFO L82 PathProgramCache]: Analyzing trace with hash -811376880, now seen corresponding path program 1 times [2021-10-24 09:40:40,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:40,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935739872] [2021-10-24 09:40:40,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:40,177 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:40,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:40,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 09:40:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:40,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:40:40,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:40,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:40,379 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:40,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935739872] [2021-10-24 09:40:40,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935739872] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:40,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:40:40,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:40:40,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132159711] [2021-10-24 09:40:40,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:40:40,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:40,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:40:40,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:40:40,381 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:40,497 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-10-24 09:40:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:40:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-24 09:40:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:40,499 INFO L225 Difference]: With dead ends: 34 [2021-10-24 09:40:40,499 INFO L226 Difference]: Without dead ends: 34 [2021-10-24 09:40:40,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 38.6ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:40:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-24 09:40:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-24 09:40:40,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-10-24 09:40:40,503 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 12 [2021-10-24 09:40:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:40,504 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-10-24 09:40:40,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:40,504 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-10-24 09:40:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 09:40:40,505 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:40,505 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:40:40,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-24 09:40:40,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:40:40,716 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:40,716 INFO L82 PathProgramCache]: Analyzing trace with hash -277697776, now seen corresponding path program 1 times [2021-10-24 09:40:40,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:40,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089045763] [2021-10-24 09:40:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:40,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:40,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:40,717 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:40,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 09:40:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:40,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:40:40,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:40,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:41,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:41,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089045763] [2021-10-24 09:40:41,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089045763] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:40:41,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2127794268] [2021-10-24 09:40:41,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:41,076 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:40:41,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:40:41,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:40:41,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-24 09:40:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:41,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:40:41,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:41,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:40:41,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2127794268] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:40:41,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648863001] [2021-10-24 09:40:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:41,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:40:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:40:41,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 09:40:41,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-24 09:40:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:41,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:40:41,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 09:40:41,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 09:40:41,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648863001] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:41,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-24 09:40:41,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6, 6, 6, 6] total 13 [2021-10-24 09:40:41,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494644304] [2021-10-24 09:40:41,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:40:41,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:40:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-24 09:40:41,672 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:41,775 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-24 09:40:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:40:41,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-24 09:40:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:41,776 INFO L225 Difference]: With dead ends: 36 [2021-10-24 09:40:41,776 INFO L226 Difference]: Without dead ends: 36 [2021-10-24 09:40:41,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 164.1ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-24 09:40:41,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-24 09:40:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-24 09:40:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-10-24 09:40:41,780 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 14 [2021-10-24 09:40:41,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:41,781 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-10-24 09:40:41,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-10-24 09:40:41,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 09:40:41,781 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:41,782 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:40:41,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:42,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:42,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-24 09:40:42,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:40:42,401 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:42,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:42,401 INFO L82 PathProgramCache]: Analyzing trace with hash -77863314, now seen corresponding path program 1 times [2021-10-24 09:40:42,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:42,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790880730] [2021-10-24 09:40:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:42,402 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:42,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:42,406 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:42,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 09:40:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:42,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:40:42,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:42,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 09:40:42,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 09:40:42,747 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:42,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790880730] [2021-10-24 09:40:42,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790880730] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:40:42,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1372809611] [2021-10-24 09:40:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:42,747 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:40:42,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:40:42,748 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:40:42,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-24 09:40:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:42,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:40:42,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 09:40:43,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 09:40:43,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1372809611] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:40:43,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876913593] [2021-10-24 09:40:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:40:43,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:40:43,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:40:43,052 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 09:40:43,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-24 09:40:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:40:43,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:40:43,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 09:40:43,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 09:40:43,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876913593] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:40:43,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 09:40:43,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2021-10-24 09:40:43,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012546322] [2021-10-24 09:40:43,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 09:40:43,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:43,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 09:40:43,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-24 09:40:43,321 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:43,585 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-10-24 09:40:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:40:43,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-24 09:40:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:43,586 INFO L225 Difference]: With dead ends: 40 [2021-10-24 09:40:43,586 INFO L226 Difference]: Without dead ends: 40 [2021-10-24 09:40:43,587 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 106.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-24 09:40:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-24 09:40:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-24 09:40:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.34375) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2021-10-24 09:40:43,590 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 15 [2021-10-24 09:40:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:43,591 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-10-24 09:40:43,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2021-10-24 09:40:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 09:40:43,592 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:43,592 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:40:43,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:43,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:44,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-24 09:40:44,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:40:44,196 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:40:44,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:40:44,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1212605842, now seen corresponding path program 2 times [2021-10-24 09:40:44,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:40:44,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497078495] [2021-10-24 09:40:44,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 09:40:44,197 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:40:44,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:40:44,198 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:40:44,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-24 09:40:44,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-24 09:40:44,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 09:40:44,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-24 09:40:44,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:40:44,445 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-24 09:40:44,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-24 09:40:44,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-24 09:40:44,676 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-10-24 09:40:44,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 23 treesize of output 35 [2021-10-24 09:40:44,977 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-24 09:40:44,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-10-24 09:40:45,055 INFO L354 Elim1Store]: treesize reduction 26, result has 44.7 percent of original size [2021-10-24 09:40:45,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 52 [2021-10-24 09:40:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 09:40:45,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:40:47,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2021-10-24 09:40:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 09:40:47,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:40:47,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497078495] [2021-10-24 09:40:47,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497078495] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:40:47,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:40:47,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-24 09:40:47,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681375395] [2021-10-24 09:40:47,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 09:40:47,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:40:47,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 09:40:47,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=60, Unknown=1, NotChecked=0, Total=90 [2021-10-24 09:40:47,434 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:40:59,794 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2021-10-24 09:40:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:40:59,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 09:40:59,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:40:59,797 INFO L225 Difference]: With dead ends: 39 [2021-10-24 09:40:59,798 INFO L226 Difference]: Without dead ends: 39 [2021-10-24 09:40:59,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2262.3ms TimeCoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2021-10-24 09:40:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-24 09:40:59,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-24 09:40:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.3125) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2021-10-24 09:40:59,802 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2021-10-24 09:40:59,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:40:59,802 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-24 09:40:59,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:40:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2021-10-24 09:40:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:40:59,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:40:59,804 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:40:59,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-24 09:41:00,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:41:00,016 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:41:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:41:00,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1378074960, now seen corresponding path program 1 times [2021-10-24 09:41:00,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:41:00,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532534953] [2021-10-24 09:41:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:41:00,017 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:41:00,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:41:00,019 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:41:00,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-24 09:41:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:41:00,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-24 09:41:00,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:41:00,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-24 09:41:00,267 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-24 09:41:00,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-24 09:41:00,629 INFO L354 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2021-10-24 09:41:00,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 40 [2021-10-24 09:41:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 09:41:00,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:41:01,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2021-10-24 09:41:01,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 291 [2021-10-24 09:41:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 09:41:01,842 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:41:01,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532534953] [2021-10-24 09:41:01,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532534953] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:41:01,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:41:01,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 09:41:01,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538783198] [2021-10-24 09:41:01,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 09:41:01,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:41:01,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 09:41:01,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-24 09:41:01,844 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:41:02,427 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-10-24 09:41:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:41:02,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 09:41:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:41:02,429 INFO L225 Difference]: With dead ends: 38 [2021-10-24 09:41:02,429 INFO L226 Difference]: Without dead ends: 38 [2021-10-24 09:41:02,429 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 516.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-24 09:41:02,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-24 09:41:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-24 09:41:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.28125) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2021-10-24 09:41:02,432 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 19 [2021-10-24 09:41:02,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:41:02,432 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2021-10-24 09:41:02,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2021-10-24 09:41:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 09:41:02,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:41:02,434 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:41:02,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-24 09:41:02,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:41:02,634 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:41:02,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:41:02,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1689464347, now seen corresponding path program 1 times [2021-10-24 09:41:02,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:41:02,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665387483] [2021-10-24 09:41:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:41:02,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:41:02,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:41:02,637 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:41:02,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 09:41:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:41:02,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:41:02,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:41:02,927 INFO L388 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 [2021-10-24 09:41:02,984 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-24 09:41:02,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:41:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-24 09:41:03,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:41:03,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665387483] [2021-10-24 09:41:03,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665387483] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:41:03,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:41:03,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:41:03,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230490763] [2021-10-24 09:41:03,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:41:03,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:41:03,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:41:03,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:41:03,063 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:41:03,121 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2021-10-24 09:41:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:41:03,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 09:41:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:41:03,122 INFO L225 Difference]: With dead ends: 37 [2021-10-24 09:41:03,122 INFO L226 Difference]: Without dead ends: 37 [2021-10-24 09:41:03,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:41:03,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-24 09:41:03,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-24 09:41:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2021-10-24 09:41:03,126 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 28 [2021-10-24 09:41:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:41:03,126 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2021-10-24 09:41:03,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2021-10-24 09:41:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 09:41:03,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:41:03,127 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:41:03,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-24 09:41:03,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:41:03,334 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:41:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:41:03,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1689464348, now seen corresponding path program 1 times [2021-10-24 09:41:03,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:41:03,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84372207] [2021-10-24 09:41:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:41:03,336 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:41:03,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:41:03,337 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:41:03,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-24 09:41:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:41:03,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:41:03,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:41:03,681 INFO L388 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 [2021-10-24 09:41:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-24 09:41:03,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:41:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-24 09:41:04,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:41:04,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84372207] [2021-10-24 09:41:04,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84372207] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:41:04,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:41:04,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 09:41:04,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373028567] [2021-10-24 09:41:04,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:41:04,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:41:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:41:04,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:41:04,059 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:41:04,138 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-24 09:41:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:41:04,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 09:41:04,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:41:04,139 INFO L225 Difference]: With dead ends: 36 [2021-10-24 09:41:04,139 INFO L226 Difference]: Without dead ends: 36 [2021-10-24 09:41:04,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:41:04,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-24 09:41:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-24 09:41:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.21875) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:04,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-10-24 09:41:04,142 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 28 [2021-10-24 09:41:04,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:41:04,143 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-10-24 09:41:04,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:41:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-10-24 09:41:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 09:41:04,144 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:41:04,144 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:41:04,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-24 09:41:04,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:41:04,345 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2021-10-24 09:41:04,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:41:04,345 INFO L82 PathProgramCache]: Analyzing trace with hash 833787226, now seen corresponding path program 1 times [2021-10-24 09:41:04,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:41:04,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543952057] [2021-10-24 09:41:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:41:04,346 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:41:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:41:04,347 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:41:04,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-24 09:41:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:41:04,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-24 09:41:04,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:41:04,779 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-24 09:41:04,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-24 09:41:04,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-24 09:41:05,034 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-10-24 09:41:05,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 23 treesize of output 35 [2021-10-24 09:41:05,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-10-24 09:41:05,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:41:05,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:41:05,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:41:05,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 09:41:06,031 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-24 09:41:06,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 59 [2021-10-24 09:41:06,173 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-10-24 09:41:06,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 57 [2021-10-24 09:41:06,488 INFO L354 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2021-10-24 09:41:06,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 35 [2021-10-24 09:41:06,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:41:06,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:41:06,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:41:06,805 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-10-24 09:41:06,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 22 [2021-10-24 09:41:06,909 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 09:41:06,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 14 [2021-10-24 09:41:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-24 09:41:06,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:41:07,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:41:07,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 09:41:11,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:41:11,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-24 09:41:17,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:41:17,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 09:41:19,695 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse0 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_3) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82|) v_DerPreprocessor_2) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75|) v_DerPreprocessor_1))) (store .cse0 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse0) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))) |c_ULTIMATE.start_main_~#p~1.base|) |c_ULTIMATE.start_main_~#p~1.offset|) (_ bv0 32))) is different from false [2021-10-24 09:41:19,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:41:19,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-10-24 09:41:32,331 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~#p~1.base_32|))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_32|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1)) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:41:34,380 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_32|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1)) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:41:36,467 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr12|) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr12| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_32|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))))) is different from false [2021-10-24 09:42:01,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:01,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-24 09:42:03,150 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_5))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_32|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))))) is different from false [2021-10-24 09:42:03,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:03,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-10-24 09:42:05,304 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_6) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104|) v_DerPreprocessor_5))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_32|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))))) is different from false [2021-10-24 09:42:05,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:05,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-24 09:42:07,468 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_111| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_7) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_111|) v_DerPreprocessor_6) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104|) v_DerPreprocessor_5))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_32|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))))) is different from false [2021-10-24 09:42:07,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:07,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-10-24 09:42:09,764 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_118| (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_111| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_8) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_118|) v_DerPreprocessor_7) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_111|) v_DerPreprocessor_6) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104|) v_DerPreprocessor_5))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_32|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))))) is different from false [2021-10-24 09:42:11,945 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_32| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_118| (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_111| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_32|))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| v_DerPreprocessor_8) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_118|) v_DerPreprocessor_7) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_111|) v_DerPreprocessor_6) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_104|) v_DerPreprocessor_5))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_32| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_32|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_97| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:42:16,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122337 treesize of output 121309 [2021-10-24 09:42:27,613 WARN L207 SmtUtils]: Spent 10.05 s on a formula simplification. DAG size of input: 438 DAG size of output: 438 [2021-10-24 09:42:27,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117209 treesize of output 117201 [2021-10-24 09:42:28,151 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:42:28,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543952057] [2021-10-24 09:42:28,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-24 09:42:28,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1362066508] [2021-10-24 09:42:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:42:28,152 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:42:28,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:42:28,154 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:42:28,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-24 09:42:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:42:28,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-24 09:42:28,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:42:29,048 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-24 09:42:29,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-24 09:42:29,248 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 09:42:29,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-24 09:42:33,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:33,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:33,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:33,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:34,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 09:42:34,153 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-24 09:42:34,154 INFO L388 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 25 treesize of output 30 [2021-10-24 09:42:34,247 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-10-24 09:42:34,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 55 [2021-10-24 09:42:34,558 INFO L354 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2021-10-24 09:42:34,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 35 [2021-10-24 09:42:34,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:34,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:34,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:42:34,806 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-10-24 09:42:34,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 22 [2021-10-24 09:42:34,903 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 09:42:34,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 14 [2021-10-24 09:42:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 09:42:34,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:42:34,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:34,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 09:42:37,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:37,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-24 09:42:39,107 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_135| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse0 (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_10) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_135|) v_DerPreprocessor_1))) (store .cse0 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse0) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))) |c_ULTIMATE.start_main_~#p~1.base|) |c_ULTIMATE.start_main_~#p~1.offset|) (_ bv0 32))) is different from false [2021-10-24 09:42:39,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:42:39,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 09:43:01,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:01,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-10-24 09:43:15,374 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_34|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1)) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_~#p~1.base_34|))))))) is different from false [2021-10-24 09:43:17,419 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_34|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1)) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:43:19,504 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr12|) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr12| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_34|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))))) is different from false [2021-10-24 09:43:21,569 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))) (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_34|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|)))) is different from false [2021-10-24 09:43:21,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:21,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-10-24 09:43:23,658 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_13))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_34|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:43:23,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:23,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-10-24 09:43:25,834 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_14) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164|) v_DerPreprocessor_13))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_34|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))))) is different from false [2021-10-24 09:43:25,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:25,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 09:43:27,986 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_15) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171|) v_DerPreprocessor_14) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164|) v_DerPreprocessor_13))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_34|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))))) is different from false [2021-10-24 09:43:28,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:28,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-24 09:43:30,278 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_178| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_34|))))))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_16) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_178|) v_DerPreprocessor_15) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171|) v_DerPreprocessor_14) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164|) v_DerPreprocessor_13))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_34|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:43:31,190 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:31,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 170 [2021-10-24 09:43:36,353 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_178| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_16) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_178|) v_DerPreprocessor_15) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171|) v_DerPreprocessor_14) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164|) v_DerPreprocessor_13))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |c_ULTIMATE.start_foo_~#p~0.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_foo_~#p~0.base|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32))) (forall ((|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#p~1.base_34| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_178| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (= |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| |v_ULTIMATE.start_main_~#p~1.base_34|) (= (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse3 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_16) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_178|) v_DerPreprocessor_15) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_171|) v_DerPreprocessor_14) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_164|) v_DerPreprocessor_13))) (store .cse3 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse3) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse2 |v_ULTIMATE.start_main_~#p~1.base_34| (store (store (store (store (select .cse2 |v_ULTIMATE.start_main_~#p~1.base_34|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_157| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32))))) is different from false [2021-10-24 09:43:36,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109749 treesize of output 108689 [2021-10-24 09:43:49,298 WARN L207 SmtUtils]: Spent 10.40 s on a formula simplification. DAG size of input: 521 DAG size of output: 521 [2021-10-24 09:43:49,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-24 09:43:49,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153342200] [2021-10-24 09:43:49,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:43:49,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:43:49,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:43:49,328 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 09:43:49,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-24 09:43:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:43:49,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-24 09:43:49,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:43:49,848 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-24 09:43:49,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-24 09:43:50,019 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 09:43:50,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-10-24 09:43:50,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:50,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:50,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:50,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:50,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-10-24 09:43:50,584 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-24 09:43:50,585 INFO L388 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 27 treesize of output 32 [2021-10-24 09:43:50,715 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-10-24 09:43:50,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 61 [2021-10-24 09:43:51,034 INFO L354 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2021-10-24 09:43:51,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 35 [2021-10-24 09:43:51,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:51,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:51,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-24 09:43:51,291 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-10-24 09:43:51,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 22 [2021-10-24 09:43:51,359 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 09:43:51,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 14 [2021-10-24 09:43:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 09:43:51,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:43:51,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:51,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 09:43:53,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:43:53,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-24 09:44:01,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:01,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-24 09:44:15,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:15,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-10-24 09:44:28,374 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~#p~1.base_36|))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_36|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1)) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:30,411 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~#p~1.base_36|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1)) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:32,519 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr12|) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr12| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:34,563 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:34,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:34,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-10-24 09:44:36,648 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_21))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|)))) is different from false [2021-10-24 09:44:36,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:36,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-10-24 09:44:38,759 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_22) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224|) v_DerPreprocessor_21))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:38,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:38,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-24 09:44:40,876 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_231| (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_23) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_231|) v_DerPreprocessor_22) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224|) v_DerPreprocessor_21))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|)))) is different from false [2021-10-24 09:44:40,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:40,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-10-24 09:44:43,145 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_238| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_231| (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| |c_ULTIMATE.start_foo_~#p~0.base| (_ bv0 1)) |v_ULTIMATE.start_main_~#p~1.base_36|)))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_24) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_238|) v_DerPreprocessor_23) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_231|) v_DerPreprocessor_22) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224|) v_DerPreprocessor_21))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:43,919 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 09:44:43,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 167 [2021-10-24 09:44:46,997 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#p~1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_238| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_231| (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| (_ BitVec 32))) (or (and (= |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| |v_ULTIMATE.start_main_~#p~1.base_36|) (not (= |c_ULTIMATE.start_foo_~#p~0.base| |v_ULTIMATE.start_main_~#p~1.base_36|))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| (let ((.cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base|) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10|) v_DerPreprocessor_24) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_238|) v_DerPreprocessor_23) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_231|) v_DerPreprocessor_22) (bvadd |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_224|) v_DerPreprocessor_21))) (store .cse1 |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memcpy_dest.base| .cse1) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.base|) |c_ULTIMATE.start_#Ultimate.C_memcpy_src.offset|)))))) (store .cse0 |v_ULTIMATE.start_main_~#p~1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_main_~#p~1.base_36|) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_217| v_DerPreprocessor_4) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_89| v_DerPreprocessor_3) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_82| v_DerPreprocessor_2) |v_ULTIMATE.start_#Ultimate.C_memcpy_#t~loopctr10_75| v_DerPreprocessor_1))) |c_~#a~0.base|) |c_~#a~0.offset|) (_ bv0 32)))) is different from false [2021-10-24 09:44:47,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26171 treesize of output 25911 [2021-10-24 09:44:48,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-24 09:44:48,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:44:48,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-24 09:44:48,677 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-24 09:44:48,678 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-24 09:44:48,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 09:44:48,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-24 09:44:48,687 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-24 09:44:48,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-24 09:44:48,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 09:44:48,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 09:44:48,688 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 09:44:48,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-24 09:44:48,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-10-24 09:44:49,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-24 09:44:49,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:44:49,316 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:44:49,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:44:49 BoogieIcfgContainer [2021-10-24 09:44:49,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:44:49,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:44:49,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:44:49,327 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:44:49,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:40:24" (3/4) ... [2021-10-24 09:44:49,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 09:44:49,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:44:49,331 INFO L168 Benchmark]: Toolchain (without parser) took 266049.61 ms. Allocated memory was 83.9 MB in the beginning and 450.9 MB in the end (delta: 367.0 MB). Free memory was 48.3 MB in the beginning and 377.5 MB in the end (delta: -329.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,331 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 66.1 MB in the beginning and 66.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:44:49,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.76 ms. Allocated memory is still 83.9 MB. Free memory was 48.2 MB in the beginning and 54.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 83.9 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,333 INFO L168 Benchmark]: Boogie Preprocessor took 31.75 ms. Allocated memory is still 83.9 MB. Free memory was 52.1 MB in the beginning and 50.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,333 INFO L168 Benchmark]: RCFGBuilder took 622.43 ms. Allocated memory is still 83.9 MB. Free memory was 50.4 MB in the beginning and 62.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,333 INFO L168 Benchmark]: TraceAbstraction took 264659.23 ms. Allocated memory was 83.9 MB in the beginning and 450.9 MB in the end (delta: 367.0 MB). Free memory was 62.5 MB in the beginning and 378.6 MB in the end (delta: -316.1 MB). Peak memory consumption was 275.0 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,334 INFO L168 Benchmark]: Witness Printer took 3.69 ms. Allocated memory is still 450.9 MB. Free memory was 378.6 MB in the beginning and 377.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:44:49,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 66.1 MB in the beginning and 66.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.76 ms. Allocated memory is still 83.9 MB. Free memory was 48.2 MB in the beginning and 54.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 83.9 MB. Free memory was 54.2 MB in the beginning and 52.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.75 ms. Allocated memory is still 83.9 MB. Free memory was 52.1 MB in the beginning and 50.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 622.43 ms. Allocated memory is still 83.9 MB. Free memory was 50.4 MB in the beginning and 62.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 264659.23 ms. Allocated memory was 83.9 MB in the beginning and 450.9 MB in the end (delta: 367.0 MB). Free memory was 62.5 MB in the beginning and 378.6 MB in the end (delta: -316.1 MB). Peak memory consumption was 275.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.69 ms. Allocated memory is still 450.9 MB. Free memory was 378.6 MB in the beginning and 377.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 651]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L640] char a[sizeof(int*)]; [L643] int *p = (int *)malloc(10); [L643] int *p = (int *)malloc(10); [L643] int *p = (int *)malloc(10); [L649] void *p; [L651] EXPR \read(*p) [L651] free(p) - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 651]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 651]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 651]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 651]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 646]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 264595.5ms, OverallIterations: 12, TraceHistogramMax: 4, EmptinessCheckTime: 18.2ms, AutomataDifference: 21147.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 194 SDtfs, 382 SDslu, 285 SDs, 0 SdLazy, 519 SolverSat, 61 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 20201.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 399 GetRequests, 333 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 5658.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=7, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 57.7ms AutomataMinimizationTime, 11 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 130.5ms SsaConstructionTime, 713.2ms SatisfiabilityAnalysisTime, 13029.5ms InterpolantComputationTime, 209 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 388 ConstructedInterpolants, 45 QuantifiedInterpolants, 2610 SizeOfPredicates, 62 NumberOfNonLiveVariables, 1293 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 30 InterpolantComputations, 20 PerfectInterpolantSequences, 144/174 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-24 09:44:49,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fd3fb38-0e3c-42fb-bfc5-d312114365e2/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...