./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:30,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:30,159 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:35:30,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:30,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:30,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:30,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:30,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:30,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:30,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:30,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:30,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:30,229 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:30,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:30,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:30,232 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:30,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:30,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:30,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:30,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:30,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:30,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:30,236 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:35:30,239 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:35:30,239 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:30,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:30,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:30,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:30,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:30,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:30,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:30,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:30,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:30,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:30,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:30,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:30,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:30,246 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:30,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:30,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:30,247 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:30,247 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2023-11-19 07:35:30,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:30,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:30,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:30,615 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:30,616 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:30,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-19 07:35:34,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:34,576 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:34,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-19 07:35:34,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/data/1557f399a/d703e6521c714c95be951af32c01d96e/FLAGc59ed1eb4 [2023-11-19 07:35:34,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/data/1557f399a/d703e6521c714c95be951af32c01d96e [2023-11-19 07:35:34,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:34,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:34,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:34,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:34,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:34,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:34" (1/1) ... [2023-11-19 07:35:34,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fbe1fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:34, skipping insertion in model container [2023-11-19 07:35:34,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:34" (1/1) ... [2023-11-19 07:35:34,773 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:35,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:35,721 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:35,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:35,996 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:35:36,004 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:36,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36 WrapperNode [2023-11-19 07:35:36,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:36,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:36,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:36,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:36,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,180 INFO L138 Inliner]: procedures = 282, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1552 [2023-11-19 07:35:36,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:36,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:36,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:36,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:36,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:36,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:36,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:36,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:36,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (1/1) ... [2023-11-19 07:35:36,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:36,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:36,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:36,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:35:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:35:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:35:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:35:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:35:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:35:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-19 07:35:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-19 07:35:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:35:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:35:36,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:35:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:35:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:35:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-19 07:35:36,569 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-19 07:35:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:35:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-19 07:35:36,570 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-19 07:35:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:35:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:36,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:36,937 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:36,941 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:39,165 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:39,182 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:39,183 INFO L302 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-19 07:35:39,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:39 BoogieIcfgContainer [2023-11-19 07:35:39,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:39,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:39,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:39,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:39,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:34" (1/3) ... [2023-11-19 07:35:39,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6269adb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:39, skipping insertion in model container [2023-11-19 07:35:39,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:36" (2/3) ... [2023-11-19 07:35:39,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6269adb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:39, skipping insertion in model container [2023-11-19 07:35:39,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:39" (3/3) ... [2023-11-19 07:35:39,204 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2023-11-19 07:35:39,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:39,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-19 07:35:39,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:39,359 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=LoopHeads, 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;@50dbeb26, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:39,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-19 07:35:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 458 states, 419 states have (on average 1.668257756563246) internal successors, (699), 436 states have internal predecessors, (699), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:35:39,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:35:39,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:39,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:39,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:39,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:39,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2023-11-19 07:35:39,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:39,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84563033] [2023-11-19 07:35:39,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:39,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:39,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:39,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84563033] [2023-11-19 07:35:39,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:35:39,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047716785] [2023-11-19 07:35:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:39,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:39,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:39,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:35:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:39,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:35:39,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:39,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047716785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:39,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:39,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:39,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886856985] [2023-11-19 07:35:39,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:39,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:35:39,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:39,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:35:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:35:40,003 INFO L87 Difference]: Start difference. First operand has 458 states, 419 states have (on average 1.668257756563246) internal successors, (699), 436 states have internal predecessors, (699), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:40,119 INFO L93 Difference]: Finished difference Result 909 states and 1483 transitions. [2023-11-19 07:35:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:35:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:35:40,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:40,144 INFO L225 Difference]: With dead ends: 909 [2023-11-19 07:35:40,144 INFO L226 Difference]: Without dead ends: 444 [2023-11-19 07:35:40,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:35:40,156 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:40,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-19 07:35:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2023-11-19 07:35:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 411 states have (on average 1.4841849148418491) internal successors, (610), 425 states have internal predecessors, (610), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:35:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 640 transitions. [2023-11-19 07:35:40,273 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 640 transitions. Word has length 8 [2023-11-19 07:35:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:40,273 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 640 transitions. [2023-11-19 07:35:40,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 640 transitions. [2023-11-19 07:35:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:35:40,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:40,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:40,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:40,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:35:40,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:40,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:40,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2023-11-19 07:35:40,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:40,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114298203] [2023-11-19 07:35:40,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:40,558 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:40,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105794762] [2023-11-19 07:35:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:40,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:40,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:40,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:40,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:35:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:40,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:35:40,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:40,899 INFO L378 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 [2023-11-19 07:35:41,004 INFO L378 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 28 treesize of output 20 [2023-11-19 07:35:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:41,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:41,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:41,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114298203] [2023-11-19 07:35:41,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:41,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105794762] [2023-11-19 07:35:41,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105794762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:41,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:41,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:35:41,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454680117] [2023-11-19 07:35:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:41,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:41,026 INFO L87 Difference]: Start difference. First operand 444 states and 640 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:42,164 INFO L93 Difference]: Finished difference Result 769 states and 1133 transitions. [2023-11-19 07:35:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:35:42,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:35:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:42,173 INFO L225 Difference]: With dead ends: 769 [2023-11-19 07:35:42,173 INFO L226 Difference]: Without dead ends: 767 [2023-11-19 07:35:42,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:35:42,177 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 631 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:42,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 2916 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:35:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-11-19 07:35:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 451. [2023-11-19 07:35:42,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 418 states have (on average 1.4784688995215312) internal successors, (618), 432 states have internal predecessors, (618), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:35:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 648 transitions. [2023-11-19 07:35:42,220 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 648 transitions. Word has length 8 [2023-11-19 07:35:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:42,221 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 648 transitions. [2023-11-19 07:35:42,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 648 transitions. [2023-11-19 07:35:42,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:35:42,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:42,225 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:42,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:42,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:42,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:42,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:42,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1342118205, now seen corresponding path program 1 times [2023-11-19 07:35:42,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:42,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409401308] [2023-11-19 07:35:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:42,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-19 07:35:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:35:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:35:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:35:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409401308] [2023-11-19 07:35:42,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409401308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:42,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:42,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:42,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512801162] [2023-11-19 07:35:42,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:42,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:35:42,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:42,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:42,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:42,716 INFO L87 Difference]: Start difference. First operand 451 states and 648 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:35:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:43,171 INFO L93 Difference]: Finished difference Result 889 states and 1288 transitions. [2023-11-19 07:35:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:35:43,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2023-11-19 07:35:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:43,177 INFO L225 Difference]: With dead ends: 889 [2023-11-19 07:35:43,177 INFO L226 Difference]: Without dead ends: 655 [2023-11-19 07:35:43,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:43,183 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 285 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:43,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1879 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:35:43,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-11-19 07:35:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 451. [2023-11-19 07:35:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 432 states have internal predecessors, (617), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:35:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 647 transitions. [2023-11-19 07:35:43,224 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 647 transitions. Word has length 34 [2023-11-19 07:35:43,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:43,224 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 647 transitions. [2023-11-19 07:35:43,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:35:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 647 transitions. [2023-11-19 07:35:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:43,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:43,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:43,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:35:43,230 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:43,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1084392461, now seen corresponding path program 1 times [2023-11-19 07:35:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197082064] [2023-11-19 07:35:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:43,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118758054] [2023-11-19 07:35:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:43,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:43,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:43,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:43,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:35:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:43,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:35:43,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:43,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:43,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197082064] [2023-11-19 07:35:43,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118758054] [2023-11-19 07:35:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118758054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:43,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:43,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614630255] [2023-11-19 07:35:43,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:43,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:43,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:43,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:43,617 INFO L87 Difference]: Start difference. First operand 451 states and 647 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-19 07:35:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:43,715 INFO L93 Difference]: Finished difference Result 914 states and 1316 transitions. [2023-11-19 07:35:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:43,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 64 [2023-11-19 07:35:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:43,722 INFO L225 Difference]: With dead ends: 914 [2023-11-19 07:35:43,722 INFO L226 Difference]: Without dead ends: 472 [2023-11-19 07:35:43,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:43,727 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 9 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:43,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1225 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-19 07:35:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2023-11-19 07:35:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 438 states have (on average 1.4543378995433789) internal successors, (637), 452 states have internal predecessors, (637), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:35:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 667 transitions. [2023-11-19 07:35:43,756 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 667 transitions. Word has length 64 [2023-11-19 07:35:43,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:43,757 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 667 transitions. [2023-11-19 07:35:43,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-19 07:35:43,757 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 667 transitions. [2023-11-19 07:35:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:43,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:43,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:43,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:43,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:43,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:43,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:43,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1161186993, now seen corresponding path program 1 times [2023-11-19 07:35:43,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:43,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036197704] [2023-11-19 07:35:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:43,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:44,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:44,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357968553] [2023-11-19 07:35:44,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:44,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:44,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:44,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:44,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:35:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:44,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:35:44,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:44,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:44,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:44,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036197704] [2023-11-19 07:35:44,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:44,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357968553] [2023-11-19 07:35:44,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357968553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:44,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:44,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:44,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503027398] [2023-11-19 07:35:44,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:44,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:35:44,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:44,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:44,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:44,367 INFO L87 Difference]: Start difference. First operand 471 states and 667 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2023-11-19 07:35:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:44,472 INFO L93 Difference]: Finished difference Result 920 states and 1312 transitions. [2023-11-19 07:35:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:35:44,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 64 [2023-11-19 07:35:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:44,477 INFO L225 Difference]: With dead ends: 920 [2023-11-19 07:35:44,477 INFO L226 Difference]: Without dead ends: 458 [2023-11-19 07:35:44,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:44,479 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 165 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:44,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1685 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:44,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-19 07:35:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 457. [2023-11-19 07:35:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 424 states have (on average 1.4528301886792452) internal successors, (616), 438 states have internal predecessors, (616), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:35:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 646 transitions. [2023-11-19 07:35:44,498 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 646 transitions. Word has length 64 [2023-11-19 07:35:44,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:44,499 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 646 transitions. [2023-11-19 07:35:44,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2023-11-19 07:35:44,499 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 646 transitions. [2023-11-19 07:35:44,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:44,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:44,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:44,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 07:35:44,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:44,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:44,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:44,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1977240447, now seen corresponding path program 1 times [2023-11-19 07:35:44,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:44,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738085808] [2023-11-19 07:35:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:44,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:44,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:44,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420199200] [2023-11-19 07:35:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:44,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:44,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:44,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:44,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:35:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:45,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:35:45,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:45,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738085808] [2023-11-19 07:35:45,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420199200] [2023-11-19 07:35:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420199200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:45,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:45,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:45,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606763775] [2023-11-19 07:35:45,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:45,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:35:45,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:45,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:45,138 INFO L87 Difference]: Start difference. First operand 457 states and 646 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-19 07:35:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:45,206 INFO L93 Difference]: Finished difference Result 887 states and 1265 transitions. [2023-11-19 07:35:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:35:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 64 [2023-11-19 07:35:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:45,214 INFO L225 Difference]: With dead ends: 887 [2023-11-19 07:35:45,214 INFO L226 Difference]: Without dead ends: 885 [2023-11-19 07:35:45,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:45,216 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 550 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:45,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1864 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-11-19 07:35:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 873. [2023-11-19 07:35:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 825 states have (on average 1.4593939393939395) internal successors, (1204), 841 states have internal predecessors, (1204), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30) [2023-11-19 07:35:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1261 transitions. [2023-11-19 07:35:45,254 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1261 transitions. Word has length 64 [2023-11-19 07:35:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:45,255 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1261 transitions. [2023-11-19 07:35:45,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-19 07:35:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1261 transitions. [2023-11-19 07:35:45,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:35:45,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:45,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:45,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:45,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:45,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:45,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:45,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1164911672, now seen corresponding path program 1 times [2023-11-19 07:35:45,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:45,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238184633] [2023-11-19 07:35:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:45,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:45,503 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261449241] [2023-11-19 07:35:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:45,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:45,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:45,506 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:45,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:35:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:45,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:35:45,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:45,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:45,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:45,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238184633] [2023-11-19 07:35:45,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261449241] [2023-11-19 07:35:45,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261449241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:45,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:45,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783750527] [2023-11-19 07:35:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:45,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:35:45,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:45,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:45,914 INFO L87 Difference]: Start difference. First operand 873 states and 1261 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-11-19 07:35:45,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:45,996 INFO L93 Difference]: Finished difference Result 1478 states and 2144 transitions. [2023-11-19 07:35:45,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:35:45,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 65 [2023-11-19 07:35:45,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:46,007 INFO L225 Difference]: With dead ends: 1478 [2023-11-19 07:35:46,008 INFO L226 Difference]: Without dead ends: 1476 [2023-11-19 07:35:46,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:46,010 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 489 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1877 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 [2023-11-19 07:35:46,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1877 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2023-11-19 07:35:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1468. [2023-11-19 07:35:46,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1403 states have (on average 1.466143977191732) internal successors, (2057), 1421 states have internal predecessors, (2057), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2023-11-19 07:35:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2142 transitions. [2023-11-19 07:35:46,071 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2142 transitions. Word has length 65 [2023-11-19 07:35:46,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:46,071 INFO L495 AbstractCegarLoop]: Abstraction has 1468 states and 2142 transitions. [2023-11-19 07:35:46,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-11-19 07:35:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2142 transitions. [2023-11-19 07:35:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 07:35:46,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:46,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:46,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:46,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:35:46,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:46,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash -271856442, now seen corresponding path program 1 times [2023-11-19 07:35:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:46,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724222929] [2023-11-19 07:35:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:46,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:46,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195614767] [2023-11-19 07:35:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:46,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:46,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:46,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:46,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:35:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:46,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:46,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:46,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:46,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:46,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724222929] [2023-11-19 07:35:46,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:46,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195614767] [2023-11-19 07:35:46,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195614767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:46,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:46,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:35:46,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3166783] [2023-11-19 07:35:46,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:46,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:46,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:46,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:46,774 INFO L87 Difference]: Start difference. First operand 1468 states and 2142 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:35:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:46,819 INFO L93 Difference]: Finished difference Result 1468 states and 2142 transitions. [2023-11-19 07:35:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:46,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2023-11-19 07:35:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:46,831 INFO L225 Difference]: With dead ends: 1468 [2023-11-19 07:35:46,831 INFO L226 Difference]: Without dead ends: 1467 [2023-11-19 07:35:46,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:46,833 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 558 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:46,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 628 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2023-11-19 07:35:46,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1467. [2023-11-19 07:35:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1403 states have (on average 1.4647184604419101) internal successors, (2055), 1420 states have internal predecessors, (2055), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2023-11-19 07:35:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2140 transitions. [2023-11-19 07:35:46,899 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2140 transitions. Word has length 74 [2023-11-19 07:35:46,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:46,899 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 2140 transitions. [2023-11-19 07:35:46,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:35:46,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2140 transitions. [2023-11-19 07:35:46,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:35:46,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:46,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:46,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:47,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:35:47,117 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:47,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash 162384959, now seen corresponding path program 1 times [2023-11-19 07:35:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039221512] [2023-11-19 07:35:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:47,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:47,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864101154] [2023-11-19 07:35:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:47,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:47,152 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:47,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:35:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:47,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:47,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:47,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:47,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039221512] [2023-11-19 07:35:47,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864101154] [2023-11-19 07:35:47,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864101154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:47,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:47,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:35:47,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072112519] [2023-11-19 07:35:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:47,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:47,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:47,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:47,571 INFO L87 Difference]: Start difference. First operand 1467 states and 2140 transitions. Second operand has 3 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:35:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:47,626 INFO L93 Difference]: Finished difference Result 1495 states and 2161 transitions. [2023-11-19 07:35:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-19 07:35:47,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:47,637 INFO L225 Difference]: With dead ends: 1495 [2023-11-19 07:35:47,637 INFO L226 Difference]: Without dead ends: 1494 [2023-11-19 07:35:47,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:47,639 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 495 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:47,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1255 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2023-11-19 07:35:47,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1485. [2023-11-19 07:35:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1416 states have (on average 1.4611581920903955) internal successors, (2069), 1434 states have internal predecessors, (2069), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2023-11-19 07:35:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2160 transitions. [2023-11-19 07:35:47,703 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2160 transitions. Word has length 75 [2023-11-19 07:35:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:47,703 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 2160 transitions. [2023-11-19 07:35:47,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:35:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2160 transitions. [2023-11-19 07:35:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 07:35:47,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:47,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:47,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:47,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:47,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:47,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:47,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1418567904, now seen corresponding path program 1 times [2023-11-19 07:35:47,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:47,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551055842] [2023-11-19 07:35:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:47,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:47,969 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123062744] [2023-11-19 07:35:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:47,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:47,971 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:47,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:35:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:48,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:35:48,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:48,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:48,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:48,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551055842] [2023-11-19 07:35:48,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:48,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123062744] [2023-11-19 07:35:48,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123062744] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:48,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:35:48,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-19 07:35:48,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417525718] [2023-11-19 07:35:48,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:48,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:35:48,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:48,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:35:48,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:35:48,753 INFO L87 Difference]: Start difference. First operand 1485 states and 2160 transitions. Second operand has 14 states, 13 states have (on average 12.153846153846153) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:35:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:49,843 INFO L93 Difference]: Finished difference Result 3647 states and 5294 transitions. [2023-11-19 07:35:49,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:35:49,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.153846153846153) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 84 [2023-11-19 07:35:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:49,872 INFO L225 Difference]: With dead ends: 3647 [2023-11-19 07:35:49,873 INFO L226 Difference]: Without dead ends: 3645 [2023-11-19 07:35:49,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=557, Unknown=0, NotChecked=0, Total=812 [2023-11-19 07:35:49,875 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 3916 mSDsluCounter, 6591 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3935 SdHoareTripleChecker+Valid, 7242 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:49,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3935 Valid, 7242 Invalid, 677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [184 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:35:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2023-11-19 07:35:50,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 3348. [2023-11-19 07:35:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3207 states have (on average 1.4593077642656689) internal successors, (4680), 3229 states have internal predecessors, (4680), 101 states have call successors, (101), 33 states have call predecessors, (101), 27 states have return successors, (122), 86 states have call predecessors, (122), 101 states have call successors, (122) [2023-11-19 07:35:50,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4903 transitions. [2023-11-19 07:35:50,053 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4903 transitions. Word has length 84 [2023-11-19 07:35:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:50,053 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4903 transitions. [2023-11-19 07:35:50,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.153846153846153) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:35:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4903 transitions. [2023-11-19 07:35:50,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:35:50,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:50,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:50,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:50,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:50,269 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:50,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash -729179785, now seen corresponding path program 1 times [2023-11-19 07:35:50,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:50,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588590831] [2023-11-19 07:35:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:50,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:50,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:50,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910964933] [2023-11-19 07:35:50,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:50,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:50,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:50,318 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:50,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:35:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:50,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:35:50,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:50,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:50,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:50,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588590831] [2023-11-19 07:35:50,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:50,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910964933] [2023-11-19 07:35:50,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910964933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:50,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:50,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649707239] [2023-11-19 07:35:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:50,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:50,891 INFO L87 Difference]: Start difference. First operand 3348 states and 4903 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:51,203 INFO L93 Difference]: Finished difference Result 7338 states and 10808 transitions. [2023-11-19 07:35:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-19 07:35:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:51,230 INFO L225 Difference]: With dead ends: 7338 [2023-11-19 07:35:51,230 INFO L226 Difference]: Without dead ends: 3999 [2023-11-19 07:35:51,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:51,236 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 392 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:51,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1425 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2023-11-19 07:35:51,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3775. [2023-11-19 07:35:51,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3775 states, 3633 states have (on average 1.476465730800991) internal successors, (5364), 3653 states have internal predecessors, (5364), 105 states have call successors, (105), 29 states have call predecessors, (105), 24 states have return successors, (126), 93 states have call predecessors, (126), 105 states have call successors, (126) [2023-11-19 07:35:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 5595 transitions. [2023-11-19 07:35:51,396 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 5595 transitions. Word has length 82 [2023-11-19 07:35:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:51,396 INFO L495 AbstractCegarLoop]: Abstraction has 3775 states and 5595 transitions. [2023-11-19 07:35:51,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 5595 transitions. [2023-11-19 07:35:51,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:35:51,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:51,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:51,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:51,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:51,620 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:51,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash 787958007, now seen corresponding path program 1 times [2023-11-19 07:35:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:51,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021138519] [2023-11-19 07:35:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:51,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:51,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335439812] [2023-11-19 07:35:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:51,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:51,665 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:51,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:35:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:52,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:35:52,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:52,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:35:52,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:52,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021138519] [2023-11-19 07:35:52,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:52,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335439812] [2023-11-19 07:35:52,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335439812] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:52,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:35:52,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-19 07:35:52,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018705291] [2023-11-19 07:35:52,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:52,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:35:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:52,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:35:52,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:35:52,397 INFO L87 Difference]: Start difference. First operand 3775 states and 5595 transitions. Second operand has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-19 07:35:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:53,067 INFO L93 Difference]: Finished difference Result 6893 states and 10188 transitions. [2023-11-19 07:35:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:53,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 94 [2023-11-19 07:35:53,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:53,112 INFO L225 Difference]: With dead ends: 6893 [2023-11-19 07:35:53,113 INFO L226 Difference]: Without dead ends: 6892 [2023-11-19 07:35:53,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:35:53,117 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2633 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 3503 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:53,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2652 Valid, 3503 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:35:53,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6892 states. [2023-11-19 07:35:53,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6892 to 6455. [2023-11-19 07:35:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6455 states, 6208 states have (on average 1.474548969072165) internal successors, (9154), 6231 states have internal predecessors, (9154), 184 states have call successors, (184), 60 states have call predecessors, (184), 50 states have return successors, (217), 164 states have call predecessors, (217), 184 states have call successors, (217) [2023-11-19 07:35:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6455 states to 6455 states and 9555 transitions. [2023-11-19 07:35:53,475 INFO L78 Accepts]: Start accepts. Automaton has 6455 states and 9555 transitions. Word has length 94 [2023-11-19 07:35:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:53,475 INFO L495 AbstractCegarLoop]: Abstraction has 6455 states and 9555 transitions. [2023-11-19 07:35:53,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-19 07:35:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 6455 states and 9555 transitions. [2023-11-19 07:35:53,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-19 07:35:53,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:53,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:53,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:53,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:35:53,704 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:53,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash -622081841, now seen corresponding path program 1 times [2023-11-19 07:35:53,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:53,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594518722] [2023-11-19 07:35:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:53,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:53,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:53,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852741427] [2023-11-19 07:35:53,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:53,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:53,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:53,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:53,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:35:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:54,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:35:54,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:35:54,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:54,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594518722] [2023-11-19 07:35:54,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:35:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852741427] [2023-11-19 07:35:54,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852741427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:54,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:54,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:54,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612746865] [2023-11-19 07:35:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:54,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:35:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:54,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:35:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:35:54,352 INFO L87 Difference]: Start difference. First operand 6455 states and 9555 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:35:54,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:54,789 INFO L93 Difference]: Finished difference Result 12776 states and 18916 transitions. [2023-11-19 07:35:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:35:54,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 120 [2023-11-19 07:35:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:54,842 INFO L225 Difference]: With dead ends: 12776 [2023-11-19 07:35:54,842 INFO L226 Difference]: Without dead ends: 6455 [2023-11-19 07:35:54,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:35:54,853 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 145 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:54,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 2959 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:54,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2023-11-19 07:35:55,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 6455. [2023-11-19 07:35:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6455 states, 6208 states have (on average 1.474387886597938) internal successors, (9153), 6230 states have internal predecessors, (9153), 184 states have call successors, (184), 60 states have call predecessors, (184), 50 states have return successors, (217), 164 states have call predecessors, (217), 184 states have call successors, (217) [2023-11-19 07:35:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6455 states to 6455 states and 9554 transitions. [2023-11-19 07:35:55,169 INFO L78 Accepts]: Start accepts. Automaton has 6455 states and 9554 transitions. Word has length 120 [2023-11-19 07:35:55,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:55,169 INFO L495 AbstractCegarLoop]: Abstraction has 6455 states and 9554 transitions. [2023-11-19 07:35:55,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:35:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 6455 states and 9554 transitions. [2023-11-19 07:35:55,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:35:55,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:55,174 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:55,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:55,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:55,395 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:35:55,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:55,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1024302027, now seen corresponding path program 1 times [2023-11-19 07:35:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:55,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110325287] [2023-11-19 07:35:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:55,448 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:35:55,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989619568] [2023-11-19 07:35:55,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:55,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:55,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:55,450 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:55,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:35:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:55,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 127 conjunts are in the unsatisfiable core [2023-11-19 07:35:55,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:55,978 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-19 07:35:55,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-19 07:35:55,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:35:56,110 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-19 07:35:56,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-19 07:35:56,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:56,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:35:56,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:56,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:35:57,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:57,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:35:58,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:58,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:35:58,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:35:58,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:35:58,114 INFO L378 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 8 treesize of output 1 [2023-11-19 07:35:58,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:35:58,245 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-11-19 07:35:58,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-11-19 07:35:58,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:35:58,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 07:35:58,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:58,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:35:58,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:35:58,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-19 07:35:58,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:35:58,902 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:58,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:35:58,945 INFO L349 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2023-11-19 07:35:58,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1265 [2023-11-19 07:35:58,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:58,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 38 [2023-11-19 07:35:58,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 8 [2023-11-19 07:35:58,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:58,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2023-11-19 07:35:59,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:35:59,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-19 07:35:59,045 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:35:59,145 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1638 treesize of output 1544 [2023-11-19 07:35:59,180 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:35:59,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1569 treesize of output 1 [2023-11-19 07:35:59,217 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1871 treesize of output 1737 [2023-11-19 07:35:59,347 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:35:59,373 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:35:59,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:35:59,412 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:35:59,623 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:35:59,660 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:35:59,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:35:59,696 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:35:59,808 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2023-11-19 07:35:59,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1169 treesize of output 1105 [2023-11-19 07:35:59,832 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:35:59,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1385 treesize of output 1 [2023-11-19 07:35:59,869 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1720 treesize of output 1614 [2023-11-19 07:35:59,920 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:35:59,956 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:35:59,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:35:59,991 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:35:59,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:00,699 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:00,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:00,735 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:00,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:00,769 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:00,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:00,827 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:00,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:00,869 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:00,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:00,902 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:00,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:00,990 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:00,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:01,027 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:01,055 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:01,118 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:01,149 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:01,183 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:01,275 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1871 treesize of output 1737 [2023-11-19 07:36:01,308 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1569 treesize of output 1 [2023-11-19 07:36:01,341 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1638 treesize of output 1544 [2023-11-19 07:36:01,443 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:01,475 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:01,510 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:01,617 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:01,649 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:01,708 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:01,753 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:01,779 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:01,811 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:01,854 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:01,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:01,881 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:01,927 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:01,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:02,022 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:02,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1385 treesize of output 1 [2023-11-19 07:36:02,047 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2023-11-19 07:36:02,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1169 treesize of output 1105 [2023-11-19 07:36:02,086 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:02,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1720 treesize of output 1614 [2023-11-19 07:36:02,123 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:02,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:02,148 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:02,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:02,184 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:02,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:02,333 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-19 07:36:02,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1595 treesize of output 1 [2023-11-19 07:36:02,365 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:02,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1664 treesize of output 1564 [2023-11-19 07:36:02,403 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2023-11-19 07:36:02,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1897 treesize of output 1757 [2023-11-19 07:36:02,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:36:02,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-19 07:36:02,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:36:02,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:36:02,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 30 [2023-11-19 07:36:02,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:36:02,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 68 [2023-11-19 07:36:02,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:02,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 18 [2023-11-19 07:36:02,910 INFO L349 Elim1Store]: treesize reduction 88, result has 7.4 percent of original size [2023-11-19 07:36:02,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 109 [2023-11-19 07:36:02,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:02,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-19 07:36:02,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:02,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 19 [2023-11-19 07:36:03,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:36:03,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 78 [2023-11-19 07:36:03,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-19 07:36:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-19 07:36:03,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:36:03,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:36:03,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 25 [2023-11-19 07:36:03,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:36:03,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-19 07:36:03,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:36:03,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 25 [2023-11-19 07:36:03,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:36:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:36:03,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:36:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:03,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:36:03,936 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~_ha_head~0#1.base_10| Int) (v_ArrVal_1873 (Array Int Int)) (v_ArrVal_1870 (Array Int Int))) (or (< (let ((.cse0 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse0)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse0))) |v_ULTIMATE.start_main_~_ha_head~0#1.base_10|) (< 0 (+ 2147483650 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_1870) |v_ULTIMATE.start_main_~_ha_head~0#1.base_10| v_ArrVal_1873) |c_ULTIMATE.start_main_~#i~0#1.base|) |c_ULTIMATE.start_main_~#i~0#1.offset|))))) is different from false [2023-11-19 07:36:03,994 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1868 (Array Int Int)) (v_ArrVal_1867 (Array Int Int)) (|v_ULTIMATE.start_main_~_ha_head~0#1.base_10| Int) (v_ArrVal_1873 (Array Int Int)) (v_ArrVal_1870 (Array Int Int)) (v_ArrVal_1869 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse1))) (or (< (select (let ((.cse0 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1869))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~users~0#1.base|) .cse1))) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1867) |c_ULTIMATE.start_main_~users~0#1.base|) .cse1)) |v_ULTIMATE.start_main_~_ha_head~0#1.base_10|) (not (= v_ArrVal_1869 (let ((.cse3 (+ 12 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse1)))) (store (select |c_#memory_$Pointer$.base| .cse2) .cse3 (select v_ArrVal_1869 .cse3))))) (< 0 (+ 2147483650 (select (select (store (store (store |c_#memory_int| .cse2 v_ArrVal_1868) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_1870) |v_ULTIMATE.start_main_~_ha_head~0#1.base_10| v_ArrVal_1873) |c_ULTIMATE.start_main_~#i~0#1.base|) |c_ULTIMATE.start_main_~#i~0#1.offset|))))))) is different from false [2023-11-19 07:36:04,016 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1868 (Array Int Int)) (v_ArrVal_1867 (Array Int Int)) (|v_ULTIMATE.start_main_~_ha_head~0#1.base_10| Int) (v_ArrVal_1873 (Array Int Int)) (v_ArrVal_1870 (Array Int Int)) (v_ArrVal_1869 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (or (< 0 (+ (select (select (store (store (store |c_#memory_int| .cse0 v_ArrVal_1868) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_1870) |v_ULTIMATE.start_main_~_ha_head~0#1.base_10| v_ArrVal_1873) |c_ULTIMATE.start_main_~#i~0#1.base|) |c_ULTIMATE.start_main_~#i~0#1.offset|) 2147483650)) (< (select (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1869))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1867) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) |v_ULTIMATE.start_main_~_ha_head~0#1.base_10|) (not (= (let ((.cse3 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 12))) (store (select |c_#memory_$Pointer$.base| .cse0) .cse3 (select v_ArrVal_1869 .cse3))) v_ArrVal_1869)))))) is different from false [2023-11-19 07:36:04,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:04,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110325287] [2023-11-19 07:36:04,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:04,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989619568] [2023-11-19 07:36:04,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989619568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:36:04,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:36:04,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-11-19 07:36:04,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184395362] [2023-11-19 07:36:04,091 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:36:04,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:36:04,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:04,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:36:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=692, Unknown=13, NotChecked=168, Total=992 [2023-11-19 07:36:04,093 INFO L87 Difference]: Start difference. First operand 6455 states and 9554 transitions. Second operand has 26 states, 23 states have (on average 5.0) internal successors, (115), 23 states have internal predecessors, (115), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:36:09,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:09,077 INFO L93 Difference]: Finished difference Result 8554 states and 12623 transitions. [2023-11-19 07:36:09,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 07:36:09,078 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 5.0) internal successors, (115), 23 states have internal predecessors, (115), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 125 [2023-11-19 07:36:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:09,102 INFO L225 Difference]: With dead ends: 8554 [2023-11-19 07:36:09,102 INFO L226 Difference]: Without dead ends: 8553 [2023-11-19 07:36:09,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=334, Invalid=2213, Unknown=15, NotChecked=300, Total=2862 [2023-11-19 07:36:09,106 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1619 mSDsluCounter, 7522 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 8090 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:09,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 8090 Invalid, 2318 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-19 07:36:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2023-11-19 07:36:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 6960. [2023-11-19 07:36:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6960 states, 6659 states have (on average 1.46328277519147) internal successors, (9744), 6689 states have internal predecessors, (9744), 222 states have call successors, (222), 73 states have call predecessors, (222), 66 states have return successors, (273), 197 states have call predecessors, (273), 222 states have call successors, (273) [2023-11-19 07:36:09,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 10239 transitions. [2023-11-19 07:36:09,400 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 10239 transitions. Word has length 125 [2023-11-19 07:36:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:09,401 INFO L495 AbstractCegarLoop]: Abstraction has 6960 states and 10239 transitions. [2023-11-19 07:36:09,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 5.0) internal successors, (115), 23 states have internal predecessors, (115), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:36:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 10239 transitions. [2023-11-19 07:36:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:36:09,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:09,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:09,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:09,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:36:09,626 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:36:09,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:09,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1611108041, now seen corresponding path program 1 times [2023-11-19 07:36:09,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:09,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750695133] [2023-11-19 07:36:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:09,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:09,683 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:09,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153153917] [2023-11-19 07:36:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:09,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:09,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:09,686 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:09,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:36:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:10,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 07:36:10,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:10,185 INFO L378 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 [2023-11-19 07:36:10,207 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:36:10,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:36:10,290 INFO L349 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2023-11-19 07:36:10,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 42 [2023-11-19 07:36:10,763 INFO L349 Elim1Store]: treesize reduction 12, result has 78.2 percent of original size [2023-11-19 07:36:10,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 68 [2023-11-19 07:36:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 07:36:11,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:11,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:11,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750695133] [2023-11-19 07:36:11,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:11,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153153917] [2023-11-19 07:36:11,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153153917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:11,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:11,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:36:11,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544227038] [2023-11-19 07:36:11,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:11,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:36:11,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:11,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:36:11,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:36:11,126 INFO L87 Difference]: Start difference. First operand 6960 states and 10239 transitions. Second operand has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 11 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:36:14,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:36:14,000 INFO L93 Difference]: Finished difference Result 15724 states and 23203 transitions. [2023-11-19 07:36:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:36:14,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 11 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 125 [2023-11-19 07:36:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:36:14,027 INFO L225 Difference]: With dead ends: 15724 [2023-11-19 07:36:14,027 INFO L226 Difference]: Without dead ends: 8849 [2023-11-19 07:36:14,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:36:14,042 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 505 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:36:14,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 3698 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 07:36:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8849 states. [2023-11-19 07:36:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8849 to 6992. [2023-11-19 07:36:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 6691 states have (on average 1.4618143775220445) internal successors, (9781), 6721 states have internal predecessors, (9781), 222 states have call successors, (222), 73 states have call predecessors, (222), 66 states have return successors, (273), 197 states have call predecessors, (273), 222 states have call successors, (273) [2023-11-19 07:36:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 10276 transitions. [2023-11-19 07:36:14,346 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 10276 transitions. Word has length 125 [2023-11-19 07:36:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:36:14,347 INFO L495 AbstractCegarLoop]: Abstraction has 6992 states and 10276 transitions. [2023-11-19 07:36:14,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 11 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:36:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 10276 transitions. [2023-11-19 07:36:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:36:14,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:14,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:14,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:36:14,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:36:14,573 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 07:36:14,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1082788149, now seen corresponding path program 1 times [2023-11-19 07:36:14,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:14,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878194211] [2023-11-19 07:36:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:14,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:14,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:36:14,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110651456] [2023-11-19 07:36:14,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:14,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:36:14,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:14,635 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:36:14,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3377b997-262d-4f85-8414-29ac401512db/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:36:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:15,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:36:15,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:36:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 07:36:15,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:36:15,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878194211] [2023-11-19 07:36:15,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:36:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110651456] [2023-11-19 07:36:15,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110651456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:15,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:15,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:36:15,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996311137] [2023-11-19 07:36:15,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:15,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:36:15,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:15,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:36:15,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:36:15,226 INFO L87 Difference]: Start difference. First operand 6992 states and 10276 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)