./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:28:57,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:28:57,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:28:57,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:28:57,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:28:57,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:28:57,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:28:57,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:28:57,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:28:57,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:28:57,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:28:57,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:28:57,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:28:57,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:28:57,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:28:57,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:28:57,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:28:57,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:28:57,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:28:57,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:28:57,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:28:57,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:28:57,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:28:57,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:28:57,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:28:57,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:28:57,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:28:57,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:28:57,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:28:57,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:28:57,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:28:57,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:28:57,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:28:57,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:28:57,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:28:57,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:28:57,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:28:57,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:28:57,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:28:57,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:28:57,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:28:57,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:28:57,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:28:57,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:28:57,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:28:57,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:28:57,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:28:57,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:28:57,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:28:57,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:28:57,228 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:28:57,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:28:57,230 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:28:57,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:28:57,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:28:57,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:28:57,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:28:57,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:28:57,231 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:28:57,232 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:28:57,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:28:57,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:28:57,232 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:28:57,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:28:57,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:28:57,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:28:57,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:28:57,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:28:57,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:28:57,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:28:57,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:28:57,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:28:57,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2022-11-21 16:28:57,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:28:57,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:28:57,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:28:57,545 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:28:57,546 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:28:57,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2022-11-21 16:29:00,735 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:29:00,993 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:29:00,993 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2022-11-21 16:29:01,008 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data/ff509be6b/5e5d0b7c7a3e46a2982cdf1b97f1eae4/FLAG6bffec536 [2022-11-21 16:29:01,024 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data/ff509be6b/5e5d0b7c7a3e46a2982cdf1b97f1eae4 [2022-11-21 16:29:01,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:29:01,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:29:01,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:01,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:29:01,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:29:01,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf89c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01, skipping insertion in model container [2022-11-21 16:29:01,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:01" (1/1) ... [2022-11-21 16:29:01,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:29:01,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:29:01,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:01,494 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-21 16:29:01,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@74800d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:01, skipping insertion in model container [2022-11-21 16:29:01,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:01,503 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-21 16:29:01,506 INFO L158 Benchmark]: Toolchain (without parser) took 469.68ms. Allocated memory is still 184.5MB. Free memory was 135.4MB in the beginning and 123.8MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:29:01,506 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:29:01,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.56ms. Allocated memory is still 184.5MB. Free memory was 135.4MB in the beginning and 123.8MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:29:01,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.56ms. Allocated memory is still 184.5MB. Free memory was 135.4MB in the beginning and 123.8MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:29:03,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:29:03,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:29:03,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:29:03,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:29:03,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:29:03,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:29:03,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:29:03,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:29:03,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:29:03,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:29:03,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:29:03,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:29:03,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:29:03,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:29:03,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:29:03,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:29:03,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:29:03,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:29:03,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:29:03,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:29:03,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:29:03,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:29:03,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:29:03,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:29:03,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:29:03,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:29:03,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:29:03,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:29:03,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:29:03,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:29:03,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:29:03,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:29:03,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:29:04,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:29:04,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:29:04,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:29:04,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:29:04,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:29:04,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:29:04,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:29:04,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 16:29:04,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:29:04,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:29:04,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:29:04,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:29:04,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:29:04,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:29:04,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:29:04,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:29:04,064 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:29:04,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:29:04,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:29:04,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:29:04,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:29:04,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:29:04,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:29:04,067 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:29:04,067 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:29:04,067 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:29:04,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:29:04,068 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:29:04,068 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:29:04,068 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:29:04,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:29:04,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:29:04,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:29:04,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:29:04,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:29:04,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:29:04,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:29:04,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:29:04,070 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:29:04,070 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:29:04,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:29:04,071 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_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2022-11-21 16:29:04,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:29:04,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:29:04,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:29:04,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:29:04,561 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:29:04,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2022-11-21 16:29:07,583 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:29:07,887 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:29:07,887 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2022-11-21 16:29:07,898 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data/78c31f31c/a697c0bc1f43470387060ecb2720ed8e/FLAG03b04e3ea [2022-11-21 16:29:07,917 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/data/78c31f31c/a697c0bc1f43470387060ecb2720ed8e [2022-11-21 16:29:07,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:29:07,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:29:07,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:07,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:29:07,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:29:07,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:07" (1/1) ... [2022-11-21 16:29:07,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e61453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:07, skipping insertion in model container [2022-11-21 16:29:07,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:29:07" (1/1) ... [2022-11-21 16:29:07,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:29:08,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:29:08,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:08,358 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 16:29:08,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:29:08,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:08,448 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:29:08,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:29:08,526 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:29:08,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08 WrapperNode [2022-11-21 16:29:08,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:29:08,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:29:08,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:29:08,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:29:08,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,621 INFO L138 Inliner]: procedures = 117, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 112 [2022-11-21 16:29:08,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:29:08,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:29:08,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:29:08,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:29:08,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:29:08,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:29:08,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:29:08,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:29:08,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (1/1) ... [2022-11-21 16:29:08,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:29:08,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:29:08,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:29:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:29:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 16:29:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:29:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:29:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:29:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:29:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:29:08,932 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:29:08,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:29:09,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:29:09,571 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:29:09,572 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 16:29:09,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:29:09 BoogieIcfgContainer [2022-11-21 16:29:09,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:29:09,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:29:09,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:29:09,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:29:09,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:29:07" (1/3) ... [2022-11-21 16:29:09,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26253ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:29:09, skipping insertion in model container [2022-11-21 16:29:09,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:29:08" (2/3) ... [2022-11-21 16:29:09,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26253ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:29:09, skipping insertion in model container [2022-11-21 16:29:09,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:29:09" (3/3) ... [2022-11-21 16:29:09,584 INFO L112 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2022-11-21 16:29:09,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:29:09,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-21 16:29:09,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:29:09,654 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4492ee41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:29:09,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-21 16:29:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 2.054054054054054) internal successors, (76), 64 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:29:09,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:29:09,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:29:09,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-21 16:29:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:09,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2022-11-21 16:29:09,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:29:09,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734938527] [2022-11-21 16:29:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:09,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:09,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:29:09,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:29:09,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:29:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:29:09,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-21 16:29:09,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:29:10,114 INFO L321 Elim1Store]: treesize reduction 115, result has 16.1 percent of original size [2022-11-21 16:29:10,116 INFO L350 Elim1Store]: Elim1 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 6 case distinctions, treesize of input 38 treesize of output 47 [2022-11-21 16:29:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:29:10,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:29:10,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:29:10,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734938527] [2022-11-21 16:29:10,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734938527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:29:10,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:29:10,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:29:10,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196244056] [2022-11-21 16:29:10,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:29:10,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:29:10,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:29:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:29:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:29:10,424 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 2.054054054054054) internal successors, (76), 64 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:29:10,671 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-11-21 16:29:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:29:10,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 16:29:10,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:29:10,682 INFO L225 Difference]: With dead ends: 64 [2022-11-21 16:29:10,682 INFO L226 Difference]: Without dead ends: 62 [2022-11-21 16:29:10,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:29:10,687 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:29:10,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 48 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:29:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-21 16:29:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-21 16:29:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:10,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-11-21 16:29:10,721 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 7 [2022-11-21 16:29:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:29:10,722 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-11-21 16:29:10,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-11-21 16:29:10,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:29:10,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:29:10,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:29:10,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:29:10,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:10,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-21 16:29:10,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:10,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2022-11-21 16:29:10,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:29:10,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607908903] [2022-11-21 16:29:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:10,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:10,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:29:10,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:29:10,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 16:29:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:29:11,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-21 16:29:11,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:29:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:29:11,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:29:11,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:29:11,211 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-21 16:29:11,211 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 15 treesize of output 29 [2022-11-21 16:29:11,253 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-21 16:29:11,255 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 19 [2022-11-21 16:29:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:29:11,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:29:11,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:29:11,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607908903] [2022-11-21 16:29:11,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607908903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:29:11,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:29:11,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:29:11,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937207476] [2022-11-21 16:29:11,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:29:11,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:29:11,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:29:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:29:11,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:29:11,375 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:12,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:29:12,102 INFO L93 Difference]: Finished difference Result 195 states and 213 transitions. [2022-11-21 16:29:12,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:29:12,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 16:29:12,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:29:12,108 INFO L225 Difference]: With dead ends: 195 [2022-11-21 16:29:12,108 INFO L226 Difference]: Without dead ends: 195 [2022-11-21 16:29:12,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:29:12,110 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 227 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:29:12,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 295 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:29:12,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-21 16:29:12,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 66. [2022-11-21 16:29:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.85) internal successors, (74), 65 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:12,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2022-11-21 16:29:12,134 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 7 [2022-11-21 16:29:12,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:29:12,135 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2022-11-21 16:29:12,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:29:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2022-11-21 16:29:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:29:12,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:29:12,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:29:12,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:29:12,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:12,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-21 16:29:12,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:29:12,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2022-11-21 16:29:12,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:29:12,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318060306] [2022-11-21 16:29:12,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:29:12,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:12,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:29:12,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:29:12,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 16:29:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:29:12,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:29:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:29:12,546 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:29:12,546 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:29:12,548 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 27 remaining) [2022-11-21 16:29:12,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 27 remaining) [2022-11-21 16:29:12,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 27 remaining) [2022-11-21 16:29:12,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 27 remaining) [2022-11-21 16:29:12,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 27 remaining) [2022-11-21 16:29:12,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 27 remaining) [2022-11-21 16:29:12,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2022-11-21 16:29:12,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2022-11-21 16:29:12,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 27 remaining) [2022-11-21 16:29:12,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2022-11-21 16:29:12,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2022-11-21 16:29:12,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2022-11-21 16:29:12,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 27 remaining) [2022-11-21 16:29:12,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 27 remaining) [2022-11-21 16:29:12,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 27 remaining) [2022-11-21 16:29:12,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 27 remaining) [2022-11-21 16:29:12,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 27 remaining) [2022-11-21 16:29:12,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 27 remaining) [2022-11-21 16:29:12,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 27 remaining) [2022-11-21 16:29:12,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2022-11-21 16:29:12,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2022-11-21 16:29:12,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2022-11-21 16:29:12,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2022-11-21 16:29:12,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2022-11-21 16:29:12,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2022-11-21 16:29:12,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2022-11-21 16:29:12,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK (0 of 27 remaining) [2022-11-21 16:29:12,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:29:12,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:29:12,774 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 16:29:12,780 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:29:12,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:29:12 BoogieIcfgContainer [2022-11-21 16:29:12,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:29:12,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:29:12,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:29:12,805 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:29:12,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:29:09" (3/4) ... [2022-11-21 16:29:12,807 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 16:29:12,845 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:29:12,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:29:12,846 INFO L158 Benchmark]: Toolchain (without parser) took 4917.91ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 60.5MB in the beginning and 65.3MB in the end (delta: -4.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-11-21 16:29:12,846 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:29:12,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.46ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 61.9MB in the end (delta: -1.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-21 16:29:12,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.63ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 59.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:29:12,848 INFO L158 Benchmark]: Boogie Preprocessor took 33.41ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 57.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:29:12,848 INFO L158 Benchmark]: RCFGBuilder took 917.45ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 57.7MB in the beginning and 79.7MB in the end (delta: -22.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-21 16:29:12,849 INFO L158 Benchmark]: TraceAbstraction took 3226.68ms. Allocated memory is still 107.0MB. Free memory was 79.2MB in the beginning and 67.4MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-21 16:29:12,849 INFO L158 Benchmark]: Witness Printer took 41.30ms. Allocated memory is still 107.0MB. Free memory was 67.1MB in the beginning and 65.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:29:12,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.46ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 61.9MB in the end (delta: -1.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.63ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 59.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.41ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 57.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 917.45ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 57.7MB in the beginning and 79.7MB in the end (delta: -22.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3226.68ms. Allocated memory is still 107.0MB. Free memory was 79.2MB in the beginning and 67.4MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Witness Printer took 41.30ms. Allocated memory is still 107.0MB. Free memory was 67.1MB in the beginning and 65.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={11:0}, __builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (N * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={5:0}, cost={11:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (M * sizeof(int))={11:0}, __builtin_alloca (N * sizeof(int))={7:0}, __builtin_alloca (N * sizeof(int))={3:0}, best={5:0}, cost={11:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L542] size[i] = __VERIFIER_nondet_int() - 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: -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: -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: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: 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, 65 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 343 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 187 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 156 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=2, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 129 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 2 QuantifiedInterpolants, 112 SizeOfPredicates, 11 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 16:29:12,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddaf52b-f5c8-43c2-a5e6-f83739194ae1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)