./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f --- 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-6b4ec56 [2022-11-20 12:10:52,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:10:52,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:10:52,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:10:52,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:10:52,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:10:52,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:10:52,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:10:52,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:10:52,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:10:52,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:10:52,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:10:52,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:10:52,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:10:52,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:10:52,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:10:52,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:10:52,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:10:52,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:10:52,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:10:52,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:10:52,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:10:52,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:10:52,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:10:52,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:10:52,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:10:52,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:10:52,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:10:52,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:10:52,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:10:52,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:10:52,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:10:52,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:10:52,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:10:52,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:10:52,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:10:52,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:10:52,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:10:52,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:10:52,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:10:52,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:10:52,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:10:52,675 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:10:52,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:10:52,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:10:52,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:10:52,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:10:52,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:10:52,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:10:52,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:10:52,679 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:10:52,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:10:52,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:10:52,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:10:52,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:10:52,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:10:52,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:10:52,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:10:52,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:10:52,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:10:52,682 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:10:52,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:10:52,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:10:52,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:10:52,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:10:52,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:10:52,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:10:52,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:10:52,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:10:52,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:10:52,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:10:52,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:10:52,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:10:52,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:10:52,686 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:10:52,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:10:52,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:10:52,687 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_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f [2022-11-20 12:10:52,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:10:52,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:10:52,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:10:52,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:10:52,991 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:10:52,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2022-11-20 12:10:56,069 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:10:56,379 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:10:56,384 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2022-11-20 12:10:56,400 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/data/8905f6dbb/e9f7ffc9a80d46118639701ad1193171/FLAGe9206a2e5 [2022-11-20 12:10:56,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/data/8905f6dbb/e9f7ffc9a80d46118639701ad1193171 [2022-11-20 12:10:56,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:10:56,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:10:56,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:10:56,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:10:56,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:10:56,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:56" (1/1) ... [2022-11-20 12:10:56,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570a7214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:56, skipping insertion in model container [2022-11-20 12:10:56,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:56" (1/1) ... [2022-11-20 12:10:56,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:10:56,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:10:56,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:10:56,968 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:10:57,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:10:57,058 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:10:57,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57 WrapperNode [2022-11-20 12:10:57,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:10:57,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:10:57,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:10:57,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:10:57,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,106 INFO L138 Inliner]: procedures = 126, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2022-11-20 12:10:57,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:10:57,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:10:57,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:10:57,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:10:57,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:10:57,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:10:57,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:10:57,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:10:57,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (1/1) ... [2022-11-20 12:10:57,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:10:57,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:10:57,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:10:57,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:10:57,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:10:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:10:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:10:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2022-11-20 12:10:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2022-11-20 12:10:57,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:10:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:10:57,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:10:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:10:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:10:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:10:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:10:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:10:57,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:10:57,350 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:10:57,352 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:10:57,850 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:10:57,856 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:10:57,856 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 12:10:57,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:57 BoogieIcfgContainer [2022-11-20 12:10:57,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:10:57,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:10:57,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:10:57,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:10:57,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:10:56" (1/3) ... [2022-11-20 12:10:57,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441a298b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:57, skipping insertion in model container [2022-11-20 12:10:57,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:57" (2/3) ... [2022-11-20 12:10:57,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441a298b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:57, skipping insertion in model container [2022-11-20 12:10:57,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:57" (3/3) ... [2022-11-20 12:10:57,868 INFO L112 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test01-2.i [2022-11-20 12:10:57,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:10:57,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 12:10:57,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:10:57,941 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@69c4d57a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:10:57,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 12:10:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.55) internal successors, (62), 46 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:10:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:10:57,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:57,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:57,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:10:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash 203654283, now seen corresponding path program 1 times [2022-11-20 12:10:57,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:57,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777390993] [2022-11-20 12:10:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:57,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:58,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:58,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777390993] [2022-11-20 12:10:58,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777390993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:58,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:58,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:58,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061604661] [2022-11-20 12:10:58,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:58,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:10:58,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:10:58,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:10:58,482 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.55) internal successors, (62), 46 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:58,547 INFO L93 Difference]: Finished difference Result 102 states and 140 transitions. [2022-11-20 12:10:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:10:58,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 12:10:58,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:58,557 INFO L225 Difference]: With dead ends: 102 [2022-11-20 12:10:58,557 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 12:10:58,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:10:58,564 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 3 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:58,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 171 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 12:10:58,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-20 12:10:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 43 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:10:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2022-11-20 12:10:58,613 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 11 [2022-11-20 12:10:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:58,613 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2022-11-20 12:10:58,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:58,614 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2022-11-20 12:10:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:10:58,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:58,617 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:58,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:10:58,618 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:10:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1904112249, now seen corresponding path program 1 times [2022-11-20 12:10:58,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:58,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563975854] [2022-11-20 12:10:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:10:58,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:58,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563975854] [2022-11-20 12:10:58,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563975854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:58,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:58,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:10:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098350971] [2022-11-20 12:10:58,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:58,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:10:58,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:58,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:10:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:10:58,919 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:58,993 INFO L93 Difference]: Finished difference Result 125 states and 156 transitions. [2022-11-20 12:10:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:10:58,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 12:10:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:58,995 INFO L225 Difference]: With dead ends: 125 [2022-11-20 12:10:58,995 INFO L226 Difference]: Without dead ends: 80 [2022-11-20 12:10:58,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:10:58,997 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 33 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:58,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 150 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:58,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-20 12:10:59,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2022-11-20 12:10:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 64 states have (on average 1.421875) internal successors, (91), 69 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:10:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2022-11-20 12:10:59,007 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 15 [2022-11-20 12:10:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:59,008 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2022-11-20 12:10:59,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-11-20 12:10:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:10:59,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:59,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:59,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:10:59,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:10:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:59,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1224053879, now seen corresponding path program 1 times [2022-11-20 12:10:59,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:59,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130628412] [2022-11-20 12:10:59,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:59,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:10:59,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:59,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130628412] [2022-11-20 12:10:59,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130628412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:59,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:59,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:59,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770803008] [2022-11-20 12:10:59,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:59,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:10:59,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:59,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:10:59,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:10:59,082 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:59,122 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2022-11-20 12:10:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:10:59,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 12:10:59,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:59,124 INFO L225 Difference]: With dead ends: 74 [2022-11-20 12:10:59,124 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 12:10:59,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:10:59,126 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 5 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:59,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 142 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 12:10:59,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-20 12:10:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 64 states have (on average 1.390625) internal successors, (89), 68 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:10:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2022-11-20 12:10:59,134 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 15 [2022-11-20 12:10:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:59,135 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2022-11-20 12:10:59,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2022-11-20 12:10:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 12:10:59,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:59,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:59,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:10:59,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:10:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:59,137 INFO L85 PathProgramCache]: Analyzing trace with hash 709035469, now seen corresponding path program 1 times [2022-11-20 12:10:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:59,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678261960] [2022-11-20 12:10:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:59,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:59,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:59,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678261960] [2022-11-20 12:10:59,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678261960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:10:59,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435518549] [2022-11-20 12:10:59,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:59,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:10:59,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:10:59,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:10:59,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:10:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:10:59,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:59,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:59,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435518549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:59,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:10:59,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 12:10:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550612067] [2022-11-20 12:10:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:59,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:59,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:59,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:59,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:10:59,516 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:59,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:59,571 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2022-11-20 12:10:59,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:10:59,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 12:10:59,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:59,581 INFO L225 Difference]: With dead ends: 75 [2022-11-20 12:10:59,581 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 12:10:59,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:10:59,591 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 50 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:59,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 124 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 12:10:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2022-11-20 12:10:59,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 58 states have (on average 1.396551724137931) internal successors, (81), 61 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:10:59,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-11-20 12:10:59,609 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 16 [2022-11-20 12:10:59,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:59,610 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-11-20 12:10:59,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:10:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2022-11-20 12:10:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 12:10:59,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:59,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:59,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:10:59,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:10:59,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:10:59,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:59,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1920979299, now seen corresponding path program 1 times [2022-11-20 12:10:59,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:59,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68552991] [2022-11-20 12:10:59,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:59,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:59,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:59,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68552991] [2022-11-20 12:10:59,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68552991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:10:59,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530835061] [2022-11-20 12:10:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:59,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:10:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:10:59,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:10:59,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:11:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:00,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:11:00,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:00,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:00,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530835061] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:00,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:11:00,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 12:11:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007746283] [2022-11-20 12:11:00,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:00,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:11:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:00,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:11:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:11:00,183 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:00,250 INFO L93 Difference]: Finished difference Result 146 states and 190 transitions. [2022-11-20 12:11:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:11:00,252 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-20 12:11:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:00,253 INFO L225 Difference]: With dead ends: 146 [2022-11-20 12:11:00,253 INFO L226 Difference]: Without dead ends: 82 [2022-11-20 12:11:00,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:11:00,258 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 17 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:00,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 237 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:11:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-20 12:11:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-20 12:11:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 77 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 101 transitions. [2022-11-20 12:11:00,274 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 101 transitions. Word has length 20 [2022-11-20 12:11:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:00,275 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 101 transitions. [2022-11-20 12:11:00,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 101 transitions. [2022-11-20 12:11:00,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 12:11:00,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:00,276 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:00,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:00,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:00,477 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash -318254171, now seen corresponding path program 2 times [2022-11-20 12:11:00,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:00,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799426535] [2022-11-20 12:11:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:00,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:00,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:00,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799426535] [2022-11-20 12:11:00,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799426535] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:00,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266462814] [2022-11-20 12:11:00,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:11:00,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:00,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:00,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:11:00,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:11:00,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:11:00,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:11:00,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:11:00,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:00,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 12:11:00,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 12:11:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 12:11:00,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:11:00,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266462814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:00,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:11:00,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2022-11-20 12:11:00,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125902869] [2022-11-20 12:11:00,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:00,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:11:00,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:00,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:11:00,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:11:00,941 INFO L87 Difference]: Start difference. First operand 82 states and 101 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:01,075 INFO L93 Difference]: Finished difference Result 108 states and 137 transitions. [2022-11-20 12:11:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:11:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-20 12:11:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:01,077 INFO L225 Difference]: With dead ends: 108 [2022-11-20 12:11:01,077 INFO L226 Difference]: Without dead ends: 107 [2022-11-20 12:11:01,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:11:01,078 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:01,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 122 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:11:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-20 12:11:01,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 94. [2022-11-20 12:11:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 89 states have internal predecessors, (115), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2022-11-20 12:11:01,087 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 28 [2022-11-20 12:11:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:01,087 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2022-11-20 12:11:01,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2022-11-20 12:11:01,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 12:11:01,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:01,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:01,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:01,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 12:11:01,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting create_dataErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:01,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:01,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1275944624, now seen corresponding path program 1 times [2022-11-20 12:11:01,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:01,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406472866] [2022-11-20 12:11:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:01,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406472866] [2022-11-20 12:11:01,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406472866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:01,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810098080] [2022-11-20 12:11:01,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:01,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:01,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:01,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:11:01,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:11:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:01,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:11:01,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:01,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:01,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:01,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810098080] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:01,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:11:01,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 12:11:01,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732856229] [2022-11-20 12:11:01,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:01,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:11:01,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:01,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:11:01,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:11:01,853 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:01,994 INFO L93 Difference]: Finished difference Result 218 states and 278 transitions. [2022-11-20 12:11:01,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 12:11:01,995 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-20 12:11:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:01,996 INFO L225 Difference]: With dead ends: 218 [2022-11-20 12:11:01,996 INFO L226 Difference]: Without dead ends: 126 [2022-11-20 12:11:01,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-11-20 12:11:01,998 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 33 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:01,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 329 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:11:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-20 12:11:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-20 12:11:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 118 states have (on average 1.2457627118644068) internal successors, (147), 121 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2022-11-20 12:11:02,008 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 29 [2022-11-20 12:11:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:02,009 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2022-11-20 12:11:02,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2022-11-20 12:11:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 12:11:02,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:02,011 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:02,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:02,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting create_dataErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:02,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1088016064, now seen corresponding path program 2 times [2022-11-20 12:11:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:02,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371383727] [2022-11-20 12:11:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:02,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:02,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:02,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371383727] [2022-11-20 12:11:02,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371383727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:02,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170296494] [2022-11-20 12:11:02,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:11:02,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:02,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:02,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:11:02,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:11:02,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:11:02,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:11:02,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:11:02,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:02,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 12:11:02,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 12:11:02,978 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-20 12:11:02,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:11:02,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170296494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:02,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:11:02,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 19 [2022-11-20 12:11:02,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875993521] [2022-11-20 12:11:02,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:02,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:11:02,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:02,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:11:02,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:11:02,980 INFO L87 Difference]: Start difference. First operand 126 states and 151 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:03,097 INFO L93 Difference]: Finished difference Result 139 states and 167 transitions. [2022-11-20 12:11:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:11:03,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-20 12:11:03,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:03,099 INFO L225 Difference]: With dead ends: 139 [2022-11-20 12:11:03,099 INFO L226 Difference]: Without dead ends: 138 [2022-11-20 12:11:03,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:11:03,100 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 8 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:03,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 123 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:11:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-20 12:11:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 128. [2022-11-20 12:11:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 120 states have (on average 1.2416666666666667) internal successors, (149), 123 states have internal predecessors, (149), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 153 transitions. [2022-11-20 12:11:03,110 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 153 transitions. Word has length 45 [2022-11-20 12:11:03,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:03,110 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 153 transitions. [2022-11-20 12:11:03,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 153 transitions. [2022-11-20 12:11:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 12:11:03,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:03,112 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:03,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:03,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:03,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 631186879, now seen corresponding path program 1 times [2022-11-20 12:11:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:03,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896924499] [2022-11-20 12:11:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:03,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:03,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896924499] [2022-11-20 12:11:03,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896924499] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867028726] [2022-11-20 12:11:03,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:03,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:03,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:11:03,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:11:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:03,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:11:03,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:04,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:04,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867028726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:04,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:11:04,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 12:11:04,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527756604] [2022-11-20 12:11:04,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:04,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 12:11:04,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:04,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 12:11:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 12:11:04,375 INFO L87 Difference]: Start difference. First operand 128 states and 153 transitions. Second operand has 34 states, 34 states have (on average 2.3529411764705883) internal successors, (80), 34 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:04,748 INFO L93 Difference]: Finished difference Result 318 states and 386 transitions. [2022-11-20 12:11:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 12:11:04,752 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.3529411764705883) internal successors, (80), 34 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-20 12:11:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:04,754 INFO L225 Difference]: With dead ends: 318 [2022-11-20 12:11:04,754 INFO L226 Difference]: Without dead ends: 192 [2022-11-20 12:11:04,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 12:11:04,758 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 95 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:04,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 379 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:11:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-20 12:11:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-20 12:11:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 184 states have (on average 1.1576086956521738) internal successors, (213), 187 states have internal predecessors, (213), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 217 transitions. [2022-11-20 12:11:04,781 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 217 transitions. Word has length 46 [2022-11-20 12:11:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:04,782 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 217 transitions. [2022-11-20 12:11:04,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.3529411764705883) internal successors, (80), 34 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:04,782 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 217 transitions. [2022-11-20 12:11:04,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 12:11:04,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:04,790 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:04,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:04,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 12:11:04,991 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:04,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:04,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1067343393, now seen corresponding path program 2 times [2022-11-20 12:11:04,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:04,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458639620] [2022-11-20 12:11:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:04,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:06,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:06,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458639620] [2022-11-20 12:11:06,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458639620] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:06,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787326294] [2022-11-20 12:11:06,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:11:06,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:06,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:06,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:11:06,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 12:11:06,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:11:06,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:11:06,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:11:06,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:06,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 12:11:06,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:11:06,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 12:11:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-20 12:11:06,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:11:06,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787326294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:06,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:11:06,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2022-11-20 12:11:06,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939330410] [2022-11-20 12:11:06,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:06,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:11:06,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:11:06,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 12:11:06,493 INFO L87 Difference]: Start difference. First operand 192 states and 217 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:06,656 INFO L93 Difference]: Finished difference Result 210 states and 239 transitions. [2022-11-20 12:11:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:11:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-20 12:11:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:06,657 INFO L225 Difference]: With dead ends: 210 [2022-11-20 12:11:06,657 INFO L226 Difference]: Without dead ends: 209 [2022-11-20 12:11:06,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 12:11:06,659 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 50 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:06,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 126 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:11:06,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-20 12:11:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-11-20 12:11:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 190 states have (on average 1.1631578947368422) internal successors, (221), 193 states have internal predecessors, (221), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 225 transitions. [2022-11-20 12:11:06,672 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 225 transitions. Word has length 78 [2022-11-20 12:11:06,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:06,673 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 225 transitions. [2022-11-20 12:11:06,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:06,673 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 225 transitions. [2022-11-20 12:11:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 12:11:06,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:06,675 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:06,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:06,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:06,881 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting create_dataErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:06,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:06,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1272093281, now seen corresponding path program 1 times [2022-11-20 12:11:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:06,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517324448] [2022-11-20 12:11:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:08,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:08,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517324448] [2022-11-20 12:11:08,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517324448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:11:08,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137273583] [2022-11-20 12:11:08,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:08,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:08,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:08,027 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:11:08,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 12:11:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:08,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 12:11:08,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:08,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:09,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137273583] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:09,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:11:09,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2022-11-20 12:11:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016783620] [2022-11-20 12:11:09,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:09,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-20 12:11:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-20 12:11:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-11-20 12:11:09,244 INFO L87 Difference]: Start difference. First operand 198 states and 225 transitions. Second operand has 43 states, 43 states have (on average 2.3488372093023258) internal successors, (101), 43 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:09,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:09,807 INFO L93 Difference]: Finished difference Result 434 states and 500 transitions. [2022-11-20 12:11:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-20 12:11:09,808 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.3488372093023258) internal successors, (101), 43 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-20 12:11:09,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:09,809 INFO L225 Difference]: With dead ends: 434 [2022-11-20 12:11:09,809 INFO L226 Difference]: Without dead ends: 238 [2022-11-20 12:11:09,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 125 SyntacticMatches, 23 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1407 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1093, Invalid=2689, Unknown=0, NotChecked=0, Total=3782 [2022-11-20 12:11:09,812 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 102 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:09,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 471 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:11:09,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-20 12:11:09,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-11-20 12:11:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 230 states have (on average 1.1347826086956523) internal successors, (261), 233 states have internal predecessors, (261), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 265 transitions. [2022-11-20 12:11:09,823 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 265 transitions. Word has length 79 [2022-11-20 12:11:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:09,823 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 265 transitions. [2022-11-20 12:11:09,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.3488372093023258) internal successors, (101), 43 states have internal predecessors, (101), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 265 transitions. [2022-11-20 12:11:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 12:11:09,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:09,825 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:09,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:10,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:11:10,032 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting create_dataErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:10,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:10,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1390587827, now seen corresponding path program 2 times [2022-11-20 12:11:10,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:10,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966821539] [2022-11-20 12:11:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:10,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-20 12:11:11,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:11,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966821539] [2022-11-20 12:11:11,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966821539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:11,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:11,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:11:11,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894243373] [2022-11-20 12:11:11,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:11,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:11:11,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:11:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:11:11,069 INFO L87 Difference]: Start difference. First operand 238 states and 265 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:11,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:11,332 INFO L93 Difference]: Finished difference Result 249 states and 277 transitions. [2022-11-20 12:11:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:11:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-20 12:11:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:11,335 INFO L225 Difference]: With dead ends: 249 [2022-11-20 12:11:11,335 INFO L226 Difference]: Without dead ends: 248 [2022-11-20 12:11:11,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:11:11,336 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 36 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:11,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 138 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:11:11,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-20 12:11:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 240. [2022-11-20 12:11:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 232 states have (on average 1.1336206896551724) internal successors, (263), 235 states have internal predecessors, (263), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:11:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 267 transitions. [2022-11-20 12:11:11,368 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 267 transitions. Word has length 99 [2022-11-20 12:11:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:11,369 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 267 transitions. [2022-11-20 12:11:11,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 267 transitions. [2022-11-20 12:11:11,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 12:11:11,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:11,371 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:11,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:11:11,371 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 12:11:11,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:11,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1388086676, now seen corresponding path program 1 times [2022-11-20 12:11:11,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:11,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526818431] [2022-11-20 12:11:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:11,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:11,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:11,702 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:11:11,703 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-20 12:11:11,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-20 12:11:11,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-20 12:11:11,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location create_dataErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-20 12:11:11,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location create_dataErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-20 12:11:11,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location create_dataErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-20 12:11:11,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:11:11,711 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:11:11,716 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:11:11,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:11:11 BoogieIcfgContainer [2022-11-20 12:11:11,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:11:11,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:11:11,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:11:11,779 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:11:11,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:57" (3/4) ... [2022-11-20 12:11:11,782 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:11:11,836 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:11:11,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:11:11,837 INFO L158 Benchmark]: Toolchain (without parser) took 15404.97ms. Allocated memory was 163.6MB in the beginning and 325.1MB in the end (delta: 161.5MB). Free memory was 131.6MB in the beginning and 207.8MB in the end (delta: -76.2MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,838 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:11:11,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.22ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 114.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.91ms. Allocated memory is still 163.6MB. Free memory was 114.2MB in the beginning and 112.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,839 INFO L158 Benchmark]: Boogie Preprocessor took 42.59ms. Allocated memory is still 163.6MB. Free memory was 112.1MB in the beginning and 110.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,839 INFO L158 Benchmark]: RCFGBuilder took 707.76ms. Allocated memory is still 163.6MB. Free memory was 110.0MB in the beginning and 88.4MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,839 INFO L158 Benchmark]: TraceAbstraction took 13917.52ms. Allocated memory was 163.6MB in the beginning and 325.1MB in the end (delta: 161.5MB). Free memory was 87.5MB in the beginning and 213.0MB in the end (delta: -125.5MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,840 INFO L158 Benchmark]: Witness Printer took 57.99ms. Allocated memory is still 325.1MB. Free memory was 213.0MB in the beginning and 207.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:11:11,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.22ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 114.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.91ms. Allocated memory is still 163.6MB. Free memory was 114.2MB in the beginning and 112.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.59ms. Allocated memory is still 163.6MB. Free memory was 112.1MB in the beginning and 110.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.76ms. Allocated memory is still 163.6MB. Free memory was 110.0MB in the beginning and 88.4MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13917.52ms. Allocated memory was 163.6MB in the beginning and 325.1MB in the end (delta: 161.5MB). Free memory was 87.5MB in the beginning and 213.0MB in the end (delta: -125.5MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 57.99ms. Allocated memory is still 325.1MB. Free memory was 213.0MB in the beginning and 207.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 564]: integer overflow possible integer overflow possible We found a FailurePath: [L597] struct node_t *list = ((void *)0); [L598] int dataNotFinished = 0; VAL [dataNotFinished=0, list={3:0}] [L600] CALL append(&list) [L587] struct node_t *node = malloc(sizeof *node); [L588] EXPR \read(**pointerToList) [L588] node->next = *pointerToList [L589] EXPR \read(**pointerToList) VAL [\read(**pointerToList)={0:0}, node={-1:0}, pointerToList={3:0}, pointerToList={3:0}] [L589] COND TRUE *pointerToList == ((void *)0) [L590] CALL create_data(((void *)0)) VAL [prevData={0:0}] [L552] prevData != ((void *)0) && prevData->hasNextPartReference VAL [prevData={0:0}, prevData={0:0}, prevData != ((void *)0) && prevData->hasNextPartReference=0] [L552] COND FALSE !(prevData != ((void *)0) && prevData->hasNextPartReference) [L555] Data data = malloc(sizeof *data); [L556] data->array = (int*) malloc(20 * sizeof(data->array)) [L557] int counter = 0; [L558] counter = 0 VAL [counter=0, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=1, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=2, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=3, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=4, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=5, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=6, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=7, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=8, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=9, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=10, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=11, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=12, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=13, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=14, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=15, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=16, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=17, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=18, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=19, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ VAL [counter=20, data={-3:0}, prevData={0:0}, prevData={0:0}] [L558] COND FALSE !(counter < 20) VAL [counter=20, data={-3:0}, prevData={0:0}, prevData={0:0}] [L561] data->number = 0 [L562] int userInput = __VERIFIER_nondet_int(); [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 [L563] EXPR data->number [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 VAL [__VERIFIER_nondet_int()=-15, __VERIFIER_nondet_int() && data->number < 200=1, counter=20, data={-3:0}, data->number=0, prevData={0:0}, prevData={0:0}, userInput=0] [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 && data->number > -200 [L563] EXPR data->number [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 && data->number > -200 VAL [__VERIFIER_nondet_int()=-15, __VERIFIER_nondet_int() && data->number < 200=1, __VERIFIER_nondet_int() && data->number < 200 && data->number > -200=1, counter=20, data={-3:0}, data->number=0, data->number=0, prevData={0:0}, prevData={0:0}, userInput=0] [L563] COND TRUE __VERIFIER_nondet_int() && data->number < 200 && data->number > -200 && userInput < 200 && userInput > -200 [L564] EXPR data->number [L564] EXPR data->number + __VERIFIER_nondet_int() [L564] data->number = data->number + __VERIFIER_nondet_int() [L565] userInput = __VERIFIER_nondet_int() [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 [L563] EXPR data->number [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 VAL [__VERIFIER_nondet_int()=-16, __VERIFIER_nondet_int() && data->number < 200=1, counter=20, data={-3:0}, data->number=17, prevData={0:0}, prevData={0:0}, userInput=0] [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 && data->number > -200 [L563] EXPR data->number [L563] EXPR __VERIFIER_nondet_int() && data->number < 200 && data->number > -200 VAL [__VERIFIER_nondet_int()=-16, __VERIFIER_nondet_int() && data->number < 200=1, __VERIFIER_nondet_int() && data->number < 200 && data->number > -200=1, counter=20, data={-3:0}, data->number=17, data->number=17, prevData={0:0}, prevData={0:0}, userInput=0] [L563] COND TRUE __VERIFIER_nondet_int() && data->number < 200 && data->number > -200 && userInput < 200 && userInput > -200 [L564] EXPR data->number [L564] data->number + __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=2147483631, counter=20, data={-3:0}, data->number=17, prevData={0:0}, prevData={0:0}, userInput=0] - UnprovableResult [Line: 558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 13, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 443 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 443 mSDsluCounter, 2512 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1938 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 528 IncrementalHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 574 mSDtfsCounter, 528 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 451 SyntacticMatches, 23 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2393 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=12, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 56 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 925 NumberOfCodeBlocks, 825 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 972 ConstructedInterpolants, 0 QuantifiedInterpolants, 2569 SizeOfPredicates, 39 NumberOfNonLiveVariables, 2005 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 24 InterpolantComputations, 8 PerfectInterpolantSequences, 1331/3502 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! [2022-11-20 12:11:11,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800c9910-03ed-45b5-83f7-45affd6ea8dd/bin/uautomizer-ug76WZFUDN/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(OVERFLOW)