./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya --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 ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:58:25,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:58:25,836 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:58:25,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:58:25,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:58:25,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:58:25,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:58:25,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:58:25,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:58:25,868 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:58:25,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:58:25,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:58:25,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:58:25,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:58:25,871 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:58:25,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:58:25,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:58:25,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:58:25,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:58:25,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:58:25,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:58:25,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:58:25,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:58:25,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:58:25,876 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:58:25,877 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:58:25,877 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:58:25,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:58:25,878 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:58:25,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:58:25,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:58:25,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:58:25,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:58:25,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:58:25,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:58:25,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:58:25,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:58:25,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:58:25,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:58:25,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:58:25,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:58:25,882 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:58:25,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:58:25,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:58:25,882 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_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2023-11-29 02:58:26,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:58:26,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:58:26,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:58:26,121 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:58:26,121 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:58:26,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2023-11-29 02:58:28,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:58:29,084 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:58:29,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2023-11-29 02:58:29,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/data/cae7504d4/1a46a1aa8bcc45e7b20c580d52f8deb3/FLAG318b836f4 [2023-11-29 02:58:29,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/data/cae7504d4/1a46a1aa8bcc45e7b20c580d52f8deb3 [2023-11-29 02:58:29,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:58:29,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:58:29,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:58:29,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:58:29,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:58:29,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:29,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8d5e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29, skipping insertion in model container [2023-11-29 02:58:29,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:29,182 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:58:29,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:58:29,745 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:58:29,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:58:29,874 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:58:29,879 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:58:29,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29 WrapperNode [2023-11-29 02:58:29,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:58:29,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:58:29,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:58:29,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:58:29,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:29,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:29,998 INFO L138 Inliner]: procedures = 282, calls = 298, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1383 [2023-11-29 02:58:29,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:58:29,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:58:29,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:58:30,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:58:30,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,105 INFO L175 MemorySlicer]: Split 264 memory accesses to 5 slices as follows [2, 3, 5, 34, 220]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 56 writes are split as follows [0, 2, 1, 4, 49]. [2023-11-29 02:58:30,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:58:30,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:58:30,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:58:30,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:58:30,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:30,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:58:30,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:58:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 02:58:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 02:58:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 02:58:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:58:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-29 02:58:30,273 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-29 02:58:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 02:58:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 02:58:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 02:58:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:58:30,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 02:58:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 02:58:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 02:58:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:58:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-29 02:58:30,275 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-29 02:58:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 02:58:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 02:58:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-29 02:58:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 02:58:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 02:58:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:58:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:58:30,525 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:58:30,527 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:58:31,861 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:58:31,911 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:58:31,911 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 02:58:31,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:31 BoogieIcfgContainer [2023-11-29 02:58:31,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:58:31,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:58:31,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:58:31,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:58:31,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:58:29" (1/3) ... [2023-11-29 02:58:31,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63947b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:58:31, skipping insertion in model container [2023-11-29 02:58:31,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29" (2/3) ... [2023-11-29 02:58:31,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63947b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:58:31, skipping insertion in model container [2023-11-29 02:58:31,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:31" (3/3) ... [2023-11-29 02:58:31,921 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2023-11-29 02:58:31,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:58:31,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-29 02:58:32,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:58:32,007 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;@71fdaa49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:58:32,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-29 02:58:32,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 373 states have (on average 1.6916890080428955) internal successors, (631), 390 states have internal predecessors, (631), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:58:32,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:58:32,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:32,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:58:32,021 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)] === [2023-11-29 02:58:32,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:32,027 INFO L85 PathProgramCache]: Analyzing trace with hash -595235965, now seen corresponding path program 1 times [2023-11-29 02:58:32,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:32,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692111747] [2023-11-29 02:58:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:32,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:32,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692111747] [2023-11-29 02:58:32,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:58:32,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3089503] [2023-11-29 02:58:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:32,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:58:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:32,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:32,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3089503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:32,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:32,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:58:32,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521610343] [2023-11-29 02:58:32,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:32,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:58:32,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:32,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:58:32,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:58:32,457 INFO L87 Difference]: Start difference. First operand has 410 states, 373 states have (on average 1.6916890080428955) internal successors, (631), 390 states have internal predecessors, (631), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:58:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:32,545 INFO L93 Difference]: Finished difference Result 814 states and 1338 transitions. [2023-11-29 02:58:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:58:32,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 02:58:32,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:32,561 INFO L225 Difference]: With dead ends: 814 [2023-11-29 02:58:32,561 INFO L226 Difference]: Without dead ends: 393 [2023-11-29 02:58:32,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:58:32,570 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:32,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-29 02:58:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2023-11-29 02:58:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 365 states have (on average 1.5095890410958903) internal successors, (551), 379 states have internal predecessors, (551), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:58:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 571 transitions. [2023-11-29 02:58:32,634 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 571 transitions. Word has length 6 [2023-11-29 02:58:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:32,635 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 571 transitions. [2023-11-29 02:58:32,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:58:32,635 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 571 transitions. [2023-11-29 02:58:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:58:32,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:32,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:58:32,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:32,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 02:58:32,837 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)] === [2023-11-29 02:58:32,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:32,837 INFO L85 PathProgramCache]: Analyzing trace with hash -595234043, now seen corresponding path program 1 times [2023-11-29 02:58:32,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:32,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944134900] [2023-11-29 02:58:32,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:32,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:32,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:32,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453430806] [2023-11-29 02:58:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:32,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:32,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:58:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:33,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:33,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:33,102 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 [2023-11-29 02:58:33,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:33,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:33,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:33,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944134900] [2023-11-29 02:58:33,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:33,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453430806] [2023-11-29 02:58:33,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453430806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:33,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:33,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:58:33,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963633264] [2023-11-29 02:58:33,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:33,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:58:33,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:33,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:58:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:58:33,136 INFO L87 Difference]: Start difference. First operand 393 states and 571 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:58:33,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:33,325 INFO L93 Difference]: Finished difference Result 757 states and 1114 transitions. [2023-11-29 02:58:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:58:33,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 02:58:33,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:33,331 INFO L225 Difference]: With dead ends: 757 [2023-11-29 02:58:33,331 INFO L226 Difference]: Without dead ends: 755 [2023-11-29 02:58:33,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:33,334 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 518 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:33,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1680 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-11-29 02:58:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 399. [2023-11-29 02:58:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 371 states have (on average 1.5040431266846361) internal successors, (558), 385 states have internal predecessors, (558), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:58:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 578 transitions. [2023-11-29 02:58:33,364 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 578 transitions. Word has length 6 [2023-11-29 02:58:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:33,365 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 578 transitions. [2023-11-29 02:58:33,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:58:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 578 transitions. [2023-11-29 02:58:33,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 02:58:33,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:33,369 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] [2023-11-29 02:58:33,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:58:33,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:33,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:33,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1582256787, now seen corresponding path program 1 times [2023-11-29 02:58:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:33,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681717774] [2023-11-29 02:58:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:33,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:33,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177868744] [2023-11-29 02:58:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:33,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:33,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:33,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:33,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:58:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:33,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:58:33,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:33,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:33,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681717774] [2023-11-29 02:58:33,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177868744] [2023-11-29 02:58:33,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177868744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:33,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:33,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955968697] [2023-11-29 02:58:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:33,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:33,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:33,865 INFO L87 Difference]: Start difference. First operand 399 states and 578 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-29 02:58:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:33,961 INFO L93 Difference]: Finished difference Result 812 states and 1179 transitions. [2023-11-29 02:58:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 62 [2023-11-29 02:58:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:33,965 INFO L225 Difference]: With dead ends: 812 [2023-11-29 02:58:33,965 INFO L226 Difference]: Without dead ends: 420 [2023-11-29 02:58:33,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:33,968 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 9 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:33,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1074 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-29 02:58:33,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2023-11-29 02:58:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 391 states have (on average 1.4782608695652173) internal successors, (578), 405 states have internal predecessors, (578), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:58:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 598 transitions. [2023-11-29 02:58:33,983 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 598 transitions. Word has length 62 [2023-11-29 02:58:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:33,984 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 598 transitions. [2023-11-29 02:58:33,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-29 02:58:33,984 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 598 transitions. [2023-11-29 02:58:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 02:58:33,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:33,988 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] [2023-11-29 02:58:33,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:58:34,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:34,194 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)] === [2023-11-29 02:58:34,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash -663322667, now seen corresponding path program 1 times [2023-11-29 02:58:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:34,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529023609] [2023-11-29 02:58:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:34,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:34,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:34,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197426160] [2023-11-29 02:58:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:34,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:34,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:34,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:34,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:58:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:34,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:58:34,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:34,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:34,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:34,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:34,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529023609] [2023-11-29 02:58:34,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:34,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197426160] [2023-11-29 02:58:34,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197426160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:34,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:34,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:58:34,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487951861] [2023-11-29 02:58:34,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:34,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:58:34,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:34,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:58:34,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:58:34,510 INFO L87 Difference]: Start difference. First operand 419 states and 598 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-29 02:58:34,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:34,614 INFO L93 Difference]: Finished difference Result 818 states and 1175 transitions. [2023-11-29 02:58:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:58:34,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 62 [2023-11-29 02:58:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:34,618 INFO L225 Difference]: With dead ends: 818 [2023-11-29 02:58:34,618 INFO L226 Difference]: Without dead ends: 406 [2023-11-29 02:58:34,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:34,620 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 165 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:34,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1459 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-29 02:58:34,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2023-11-29 02:58:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 377 states have (on average 1.4774535809018567) internal successors, (557), 391 states have internal predecessors, (557), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:58:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 577 transitions. [2023-11-29 02:58:34,635 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 577 transitions. Word has length 62 [2023-11-29 02:58:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:34,635 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 577 transitions. [2023-11-29 02:58:34,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-29 02:58:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 577 transitions. [2023-11-29 02:58:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 02:58:34,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:34,638 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] [2023-11-29 02:58:34,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:58:34,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:34,841 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)] === [2023-11-29 02:58:34,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1479376121, now seen corresponding path program 1 times [2023-11-29 02:58:34,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:34,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874244677] [2023-11-29 02:58:34,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:34,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:34,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:34,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102938172] [2023-11-29 02:58:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:34,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:34,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:34,873 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:34,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:58:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:35,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:35,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:35,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:35,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:35,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874244677] [2023-11-29 02:58:35,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:35,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102938172] [2023-11-29 02:58:35,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102938172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:35,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:35,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:58:35,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465760238] [2023-11-29 02:58:35,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:35,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:58:35,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:35,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:58:35,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:58:35,195 INFO L87 Difference]: Start difference. First operand 405 states and 577 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-29 02:58:35,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:35,279 INFO L93 Difference]: Finished difference Result 785 states and 1130 transitions. [2023-11-29 02:58:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:58:35,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 62 [2023-11-29 02:58:35,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:35,287 INFO L225 Difference]: With dead ends: 785 [2023-11-29 02:58:35,287 INFO L226 Difference]: Without dead ends: 783 [2023-11-29 02:58:35,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:35,289 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 489 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:35,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1639 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-29 02:58:35,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2023-11-29 02:58:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 733 states have (on average 1.4829467939972716) internal successors, (1087), 748 states have internal predecessors, (1087), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (21), 16 states have call predecessors, (21), 18 states have call successors, (21) [2023-11-29 02:58:35,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1126 transitions. [2023-11-29 02:58:35,320 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1126 transitions. Word has length 62 [2023-11-29 02:58:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:35,321 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1126 transitions. [2023-11-29 02:58:35,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-29 02:58:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1126 transitions. [2023-11-29 02:58:35,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:58:35,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:35,323 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] [2023-11-29 02:58:35,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:58:35,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:35,525 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:35,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:35,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1383980546, now seen corresponding path program 1 times [2023-11-29 02:58:35,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:35,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470232910] [2023-11-29 02:58:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:35,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:35,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:35,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275562651] [2023-11-29 02:58:35,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:35,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:35,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:35,554 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:35,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:58:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:35,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:35,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:35,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:35,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:35,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470232910] [2023-11-29 02:58:35,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:35,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275562651] [2023-11-29 02:58:35,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275562651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:35,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:35,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:58:35,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747296089] [2023-11-29 02:58:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:35,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:58:35,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:35,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:58:35,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:58:35,918 INFO L87 Difference]: Start difference. First operand 771 states and 1126 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-11-29 02:58:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:36,015 INFO L93 Difference]: Finished difference Result 1279 states and 1879 transitions. [2023-11-29 02:58:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:58:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 63 [2023-11-29 02:58:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:36,024 INFO L225 Difference]: With dead ends: 1279 [2023-11-29 02:58:36,024 INFO L226 Difference]: Without dead ends: 1277 [2023-11-29 02:58:36,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:36,026 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 422 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:36,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1649 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:36,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2023-11-29 02:58:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1269. [2023-11-29 02:58:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1225 states have (on average 1.4922448979591836) internal successors, (1828), 1241 states have internal predecessors, (1828), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2023-11-29 02:58:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1877 transitions. [2023-11-29 02:58:36,073 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1877 transitions. Word has length 63 [2023-11-29 02:58:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:36,073 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 1877 transitions. [2023-11-29 02:58:36,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-11-29 02:58:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1877 transitions. [2023-11-29 02:58:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 02:58:36,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:36,075 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] [2023-11-29 02:58:36,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:58:36,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 02:58:36,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:36,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1493724209, now seen corresponding path program 1 times [2023-11-29 02:58:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:36,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718495857] [2023-11-29 02:58:36,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:36,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:36,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:36,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718495857] [2023-11-29 02:58:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718495857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:36,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:36,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:36,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327774419] [2023-11-29 02:58:36,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:36,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:58:36,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:36,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:58:36,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:58:36,607 INFO L87 Difference]: Start difference. First operand 1269 states and 1877 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:58:36,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:36,777 INFO L93 Difference]: Finished difference Result 2361 states and 3509 transitions. [2023-11-29 02:58:36,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:58:36,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-11-29 02:58:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:36,791 INFO L225 Difference]: With dead ends: 2361 [2023-11-29 02:58:36,791 INFO L226 Difference]: Without dead ends: 2008 [2023-11-29 02:58:36,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:36,793 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 512 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:36,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1666 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2023-11-29 02:58:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1269. [2023-11-29 02:58:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1225 states have (on average 1.4914285714285713) internal successors, (1827), 1241 states have internal predecessors, (1827), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2023-11-29 02:58:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1876 transitions. [2023-11-29 02:58:36,859 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1876 transitions. Word has length 69 [2023-11-29 02:58:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:36,859 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 1876 transitions. [2023-11-29 02:58:36,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:58:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1876 transitions. [2023-11-29 02:58:36,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 02:58:36,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:36,861 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] [2023-11-29 02:58:36,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:58:36,861 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)] === [2023-11-29 02:58:36,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash 602276963, now seen corresponding path program 1 times [2023-11-29 02:58:36,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:36,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591030848] [2023-11-29 02:58:36,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:36,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:36,890 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:36,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324734331] [2023-11-29 02:58:36,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:36,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:36,892 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:36,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:58:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:37,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:37,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:37,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591030848] [2023-11-29 02:58:37,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324734331] [2023-11-29 02:58:37,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324734331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:37,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:37,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:58:37,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84856502] [2023-11-29 02:58:37,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:37,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:37,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:37,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:37,235 INFO L87 Difference]: Start difference. First operand 1269 states and 1876 transitions. Second operand has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2023-11-29 02:58:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:37,280 INFO L93 Difference]: Finished difference Result 1269 states and 1876 transitions. [2023-11-29 02:58:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:37,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 71 [2023-11-29 02:58:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:37,289 INFO L225 Difference]: With dead ends: 1269 [2023-11-29 02:58:37,289 INFO L226 Difference]: Without dead ends: 1268 [2023-11-29 02:58:37,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:37,290 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 492 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:37,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 553 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2023-11-29 02:58:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2023-11-29 02:58:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1225 states have (on average 1.489795918367347) internal successors, (1825), 1240 states have internal predecessors, (1825), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2023-11-29 02:58:37,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1874 transitions. [2023-11-29 02:58:37,340 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1874 transitions. Word has length 71 [2023-11-29 02:58:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:37,340 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1874 transitions. [2023-11-29 02:58:37,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2023-11-29 02:58:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1874 transitions. [2023-11-29 02:58:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 02:58:37,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:37,342 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] [2023-11-29 02:58:37,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:58:37,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:58:37,542 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)] === [2023-11-29 02:58:37,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:37,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1490716738, now seen corresponding path program 1 times [2023-11-29 02:58:37,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:37,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624838547] [2023-11-29 02:58:37,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:37,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:37,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:37,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71664619] [2023-11-29 02:58:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:37,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:37,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:37,566 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:37,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:58:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:37,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:37,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:37,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:37,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:37,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624838547] [2023-11-29 02:58:37,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71664619] [2023-11-29 02:58:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71664619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:37,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:37,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:58:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938693845] [2023-11-29 02:58:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:37,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:37,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:37,908 INFO L87 Difference]: Start difference. First operand 1268 states and 1874 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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) [2023-11-29 02:58:37,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:37,987 INFO L93 Difference]: Finished difference Result 1295 states and 1894 transitions. [2023-11-29 02:58:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:37,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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 72 [2023-11-29 02:58:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:37,995 INFO L225 Difference]: With dead ends: 1295 [2023-11-29 02:58:37,995 INFO L226 Difference]: Without dead ends: 1294 [2023-11-29 02:58:37,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:37,997 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 431 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:37,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1107 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:37,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2023-11-29 02:58:38,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1285. [2023-11-29 02:58:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1237 states have (on average 1.4858528698464026) internal successors, (1838), 1253 states have internal predecessors, (1838), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2023-11-29 02:58:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1893 transitions. [2023-11-29 02:58:38,046 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1893 transitions. Word has length 72 [2023-11-29 02:58:38,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:38,047 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1893 transitions. [2023-11-29 02:58:38,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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) [2023-11-29 02:58:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1893 transitions. [2023-11-29 02:58:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 02:58:38,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:38,048 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] [2023-11-29 02:58:38,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:58:38,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:38,251 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)] === [2023-11-29 02:58:38,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:38,252 INFO L85 PathProgramCache]: Analyzing trace with hash -179740024, now seen corresponding path program 1 times [2023-11-29 02:58:38,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:38,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234021066] [2023-11-29 02:58:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:38,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:38,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714986431] [2023-11-29 02:58:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:38,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:38,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:38,284 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:38,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:58:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:38,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:58:38,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:38,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:38,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:38,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234021066] [2023-11-29 02:58:38,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:38,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714986431] [2023-11-29 02:58:38,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714986431] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:38,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:38,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 02:58:38,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232760294] [2023-11-29 02:58:38,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:38,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:58:38,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:38,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:58:38,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:58:38,933 INFO L87 Difference]: Start difference. First operand 1285 states and 1893 transitions. Second operand has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 12 states have internal predecessors, (148), 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) [2023-11-29 02:58:39,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:39,689 INFO L93 Difference]: Finished difference Result 3188 states and 4686 transitions. [2023-11-29 02:58:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:58:39,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 12 states have internal predecessors, (148), 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 79 [2023-11-29 02:58:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:39,708 INFO L225 Difference]: With dead ends: 3188 [2023-11-29 02:58:39,708 INFO L226 Difference]: Without dead ends: 3186 [2023-11-29 02:58:39,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=255, Invalid=557, Unknown=0, NotChecked=0, Total=812 [2023-11-29 02:58:39,711 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 2935 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2942 SdHoareTripleChecker+Valid, 5399 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:39,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2942 Valid, 5399 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:58:39,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2023-11-29 02:58:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2936. [2023-11-29 02:58:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2838 states have (on average 1.4823819591261451) internal successors, (4207), 2856 states have internal predecessors, (4207), 65 states have call successors, (65), 26 states have call predecessors, (65), 20 states have return successors, (86), 54 states have call predecessors, (86), 65 states have call successors, (86) [2023-11-29 02:58:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 4358 transitions. [2023-11-29 02:58:39,824 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 4358 transitions. Word has length 79 [2023-11-29 02:58:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:39,825 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 4358 transitions. [2023-11-29 02:58:39,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 12 states have internal predecessors, (148), 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) [2023-11-29 02:58:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 4358 transitions. [2023-11-29 02:58:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 02:58:39,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:39,826 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] [2023-11-29 02:58:39,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:58:40,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:40,027 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)] === [2023-11-29 02:58:40,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1135681678, now seen corresponding path program 1 times [2023-11-29 02:58:40,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:40,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270133307] [2023-11-29 02:58:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:40,068 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:40,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299310309] [2023-11-29 02:58:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:40,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:40,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:40,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:58:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:40,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:40,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:40,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:40,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270133307] [2023-11-29 02:58:40,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299310309] [2023-11-29 02:58:40,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299310309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:40,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:40,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:58:40,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296556146] [2023-11-29 02:58:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:40,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:40,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:40,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:40,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:40,611 INFO L87 Difference]: Start difference. First operand 2936 states and 4358 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-29 02:58:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:40,800 INFO L93 Difference]: Finished difference Result 6364 states and 9496 transitions. [2023-11-29 02:58:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:40,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-11-29 02:58:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:40,820 INFO L225 Difference]: With dead ends: 6364 [2023-11-29 02:58:40,820 INFO L226 Difference]: Without dead ends: 3435 [2023-11-29 02:58:40,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:40,826 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 345 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:40,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1243 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2023-11-29 02:58:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3412. [2023-11-29 02:58:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3320 states have (on average 1.4960843373493975) internal successors, (4967), 3337 states have internal predecessors, (4967), 60 states have call successors, (60), 24 states have call predecessors, (60), 19 states have return successors, (81), 51 states have call predecessors, (81), 60 states have call successors, (81) [2023-11-29 02:58:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 5108 transitions. [2023-11-29 02:58:40,976 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 5108 transitions. Word has length 80 [2023-11-29 02:58:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:40,976 INFO L495 AbstractCegarLoop]: Abstraction has 3412 states and 5108 transitions. [2023-11-29 02:58:40,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-29 02:58:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 5108 transitions. [2023-11-29 02:58:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 02:58:40,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:40,978 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 02:58:40,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 02:58:41,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:41,178 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)] === [2023-11-29 02:58:41,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1254556124, now seen corresponding path program 1 times [2023-11-29 02:58:41,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:41,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375184875] [2023-11-29 02:58:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:41,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:41,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:41,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023881536] [2023-11-29 02:58:41,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:41,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:41,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:41,219 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:41,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:58:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:41,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:58:41,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:41,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:41,796 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:58:41,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:41,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375184875] [2023-11-29 02:58:41,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:41,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023881536] [2023-11-29 02:58:41,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023881536] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:41,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:41,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 02:58:41,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333273957] [2023-11-29 02:58:41,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:41,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:58:41,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:41,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:58:41,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:58:41,799 INFO L87 Difference]: Start difference. First operand 3412 states and 5108 transitions. Second operand has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 10 states have internal predecessors, (157), 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) [2023-11-29 02:58:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:42,311 INFO L93 Difference]: Finished difference Result 6168 states and 9214 transitions. [2023-11-29 02:58:42,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:58:42,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 10 states have internal predecessors, (157), 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 88 [2023-11-29 02:58:42,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:42,339 INFO L225 Difference]: With dead ends: 6168 [2023-11-29 02:58:42,339 INFO L226 Difference]: Without dead ends: 6167 [2023-11-29 02:58:42,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:58:42,342 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 3222 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3231 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:42,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3231 Valid, 2611 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:58:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6167 states. [2023-11-29 02:58:42,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6167 to 5514. [2023-11-29 02:58:42,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5358 states have (on average 1.492161254199328) internal successors, (7995), 5375 states have internal predecessors, (7995), 102 states have call successors, (102), 51 states have call predecessors, (102), 41 states have return successors, (135), 88 states have call predecessors, (135), 102 states have call successors, (135) [2023-11-29 02:58:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8232 transitions. [2023-11-29 02:58:42,508 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8232 transitions. Word has length 88 [2023-11-29 02:58:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:42,509 INFO L495 AbstractCegarLoop]: Abstraction has 5514 states and 8232 transitions. [2023-11-29 02:58:42,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 10 states have internal predecessors, (157), 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) [2023-11-29 02:58:42,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8232 transitions. [2023-11-29 02:58:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 02:58:42,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:42,511 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 02:58:42,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:58:42,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:42,711 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)] === [2023-11-29 02:58:42,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1920423258, now seen corresponding path program 1 times [2023-11-29 02:58:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:42,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298916739] [2023-11-29 02:58:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:42,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:42,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:42,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638224979] [2023-11-29 02:58:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:42,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:42,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:42,753 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:42,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:58:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:43,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:58:43,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:43,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 02:58:43,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:43,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:43,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298916739] [2023-11-29 02:58:43,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:43,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638224979] [2023-11-29 02:58:43,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638224979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:43,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:43,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:58:43,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986939223] [2023-11-29 02:58:43,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:43,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:58:43,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:43,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:58:43,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:58:43,219 INFO L87 Difference]: Start difference. First operand 5514 states and 8232 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 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) [2023-11-29 02:58:43,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:43,506 INFO L93 Difference]: Finished difference Result 10896 states and 16272 transitions. [2023-11-29 02:58:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:58:43,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 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 112 [2023-11-29 02:58:43,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:43,537 INFO L225 Difference]: With dead ends: 10896 [2023-11-29 02:58:43,537 INFO L226 Difference]: Without dead ends: 5514 [2023-11-29 02:58:43,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:58:43,545 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 142 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:43,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 2627 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:43,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2023-11-29 02:58:43,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5514. [2023-11-29 02:58:43,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5358 states have (on average 1.4919746173945503) internal successors, (7994), 5374 states have internal predecessors, (7994), 102 states have call successors, (102), 51 states have call predecessors, (102), 41 states have return successors, (135), 88 states have call predecessors, (135), 102 states have call successors, (135) [2023-11-29 02:58:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8231 transitions. [2023-11-29 02:58:43,721 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8231 transitions. Word has length 112 [2023-11-29 02:58:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:43,721 INFO L495 AbstractCegarLoop]: Abstraction has 5514 states and 8231 transitions. [2023-11-29 02:58:43,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 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) [2023-11-29 02:58:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8231 transitions. [2023-11-29 02:58:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:58:43,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:43,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:58:43,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:58:43,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 02:58:43,924 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)] === [2023-11-29 02:58:43,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2012946247, now seen corresponding path program 1 times [2023-11-29 02:58:43,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:43,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061112421] [2023-11-29 02:58:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:43,967 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:43,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763693452] [2023-11-29 02:58:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:43,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:43,969 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:43,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:58:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:44,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:44,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:44,369 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 [2023-11-29 02:58:44,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 02:58:44,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:44,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:44,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061112421] [2023-11-29 02:58:44,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:44,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763693452] [2023-11-29 02:58:44,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763693452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:44,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:44,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:44,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025522552] [2023-11-29 02:58:44,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:44,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:58:44,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:44,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:58:44,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:44,639 INFO L87 Difference]: Start difference. First operand 5514 states and 8231 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:58:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:44,964 INFO L93 Difference]: Finished difference Result 7561 states and 11247 transitions. [2023-11-29 02:58:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:58:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2023-11-29 02:58:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:45,008 INFO L225 Difference]: With dead ends: 7561 [2023-11-29 02:58:45,009 INFO L226 Difference]: Without dead ends: 7560 [2023-11-29 02:58:45,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:58:45,011 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 435 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:45,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 2106 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:58:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7560 states. [2023-11-29 02:58:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7560 to 7053. [2023-11-29 02:58:45,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7053 states, 6865 states have (on average 1.4965768390386016) internal successors, (10274), 6884 states have internal predecessors, (10274), 123 states have call successors, (123), 67 states have call predecessors, (123), 52 states have return successors, (157), 101 states have call predecessors, (157), 123 states have call successors, (157) [2023-11-29 02:58:45,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7053 states to 7053 states and 10554 transitions. [2023-11-29 02:58:45,268 INFO L78 Accepts]: Start accepts. Automaton has 7053 states and 10554 transitions. Word has length 117 [2023-11-29 02:58:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:45,268 INFO L495 AbstractCegarLoop]: Abstraction has 7053 states and 10554 transitions. [2023-11-29 02:58:45,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:58:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7053 states and 10554 transitions. [2023-11-29 02:58:45,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 02:58:45,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:45,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:58:45,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:58:45,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:58:45,471 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:45,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:45,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2023176601, now seen corresponding path program 1 times [2023-11-29 02:58:45,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:45,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563402999] [2023-11-29 02:58:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:45,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:45,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:45,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190373247] [2023-11-29 02:58:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:45,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:45,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:45,509 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:45,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:58:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:45,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:45,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:46,146 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 15 treesize of output 7 [2023-11-29 02:58:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 02:58:46,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:46,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:46,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563402999] [2023-11-29 02:58:46,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:46,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190373247] [2023-11-29 02:58:46,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190373247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:46,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:46,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:58:46,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545065216] [2023-11-29 02:58:46,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:46,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:58:46,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:46,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:58:46,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:58:46,158 INFO L87 Difference]: Start difference. First operand 7053 states and 10554 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:58:48,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:58:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:48,694 INFO L93 Difference]: Finished difference Result 7571 states and 11247 transitions. [2023-11-29 02:58:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:58:48,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 118 [2023-11-29 02:58:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:48,707 INFO L225 Difference]: With dead ends: 7571 [2023-11-29 02:58:48,707 INFO L226 Difference]: Without dead ends: 7570 [2023-11-29 02:58:48,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:58:48,710 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 879 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:48,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1826 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 02:58:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2023-11-29 02:58:48,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 4578. [2023-11-29 02:58:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4578 states, 4409 states have (on average 1.470401451576321) internal successors, (6483), 4423 states have internal predecessors, (6483), 106 states have call successors, (106), 62 states have call predecessors, (106), 51 states have return successors, (140), 92 states have call predecessors, (140), 106 states have call successors, (140) [2023-11-29 02:58:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 6729 transitions. [2023-11-29 02:58:48,864 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 6729 transitions. Word has length 118 [2023-11-29 02:58:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:48,864 INFO L495 AbstractCegarLoop]: Abstraction has 4578 states and 6729 transitions. [2023-11-29 02:58:48,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:58:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 6729 transitions. [2023-11-29 02:58:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 02:58:48,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:48,866 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, 1, 1, 1] [2023-11-29 02:58:48,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:58:49,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:58:49,067 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:49,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:49,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1632876603, now seen corresponding path program 1 times [2023-11-29 02:58:49,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:49,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945773628] [2023-11-29 02:58:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:49,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:49,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:49,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538784644] [2023-11-29 02:58:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:49,110 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:49,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:58:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:49,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:58:49,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:49,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:49,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:49,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945773628] [2023-11-29 02:58:49,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538784644] [2023-11-29 02:58:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538784644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:49,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:49,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:58:49,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314496766] [2023-11-29 02:58:49,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:58:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:58:49,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:58:49,580 INFO L87 Difference]: Start difference. First operand 4578 states and 6729 transitions. Second operand has 9 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:58:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:49,846 INFO L93 Difference]: Finished difference Result 7909 states and 11650 transitions. [2023-11-29 02:58:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:58:49,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 123 [2023-11-29 02:58:49,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:49,854 INFO L225 Difference]: With dead ends: 7909 [2023-11-29 02:58:49,854 INFO L226 Difference]: Without dead ends: 3445 [2023-11-29 02:58:49,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:58:49,860 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 23 mSDsluCounter, 3775 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:49,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4319 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:49,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2023-11-29 02:58:49,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3441. [2023-11-29 02:58:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3317 states have (on average 1.478745854687971) internal successors, (4905), 3332 states have internal predecessors, (4905), 67 states have call successors, (67), 51 states have call predecessors, (67), 45 states have return successors, (79), 57 states have call predecessors, (79), 67 states have call successors, (79) [2023-11-29 02:58:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 5051 transitions. [2023-11-29 02:58:49,954 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 5051 transitions. Word has length 123 [2023-11-29 02:58:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:49,954 INFO L495 AbstractCegarLoop]: Abstraction has 3441 states and 5051 transitions. [2023-11-29 02:58:49,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:58:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 5051 transitions. [2023-11-29 02:58:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 02:58:49,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:49,956 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1] [2023-11-29 02:58:49,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 02:58:50,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:58:50,156 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:50,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:50,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1197109681, now seen corresponding path program 1 times [2023-11-29 02:58:50,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:50,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840411108] [2023-11-29 02:58:50,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:50,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:50,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:50,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78954850] [2023-11-29 02:58:50,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:50,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:50,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:50,222 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:50,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:58:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:50,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:58:50,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:58:50,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:58:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:50,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840411108] [2023-11-29 02:58:50,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:50,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78954850] [2023-11-29 02:58:50,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78954850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:50,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:50,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2023-11-29 02:58:50,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476473304] [2023-11-29 02:58:50,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:50,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:58:50,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:50,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:58:50,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:58:50,909 INFO L87 Difference]: Start difference. First operand 3441 states and 5051 transitions. Second operand has 14 states, 12 states have (on average 11.166666666666666) internal successors, (134), 14 states have internal predecessors, (134), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:58:51,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:51,336 INFO L93 Difference]: Finished difference Result 6822 states and 10040 transitions. [2023-11-29 02:58:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:58:51,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.166666666666666) internal successors, (134), 14 states have internal predecessors, (134), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 125 [2023-11-29 02:58:51,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:51,343 INFO L225 Difference]: With dead ends: 6822 [2023-11-29 02:58:51,343 INFO L226 Difference]: Without dead ends: 3516 [2023-11-29 02:58:51,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:58:51,347 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 51 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:51,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 4868 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:58:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2023-11-29 02:58:51,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 3496. [2023-11-29 02:58:51,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 3370 states have (on average 1.4795252225519289) internal successors, (4986), 3381 states have internal predecessors, (4986), 67 states have call successors, (67), 57 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:58:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 5128 transitions. [2023-11-29 02:58:51,458 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 5128 transitions. Word has length 125 [2023-11-29 02:58:51,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:51,459 INFO L495 AbstractCegarLoop]: Abstraction has 3496 states and 5128 transitions. [2023-11-29 02:58:51,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.166666666666666) internal successors, (134), 14 states have internal predecessors, (134), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:58:51,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 5128 transitions. [2023-11-29 02:58:51,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 02:58:51,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:51,460 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1] [2023-11-29 02:58:51,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 02:58:51,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:58:51,661 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:51,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1935202277, now seen corresponding path program 2 times [2023-11-29 02:58:51,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:51,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636773393] [2023-11-29 02:58:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:51,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:51,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:51,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159279986] [2023-11-29 02:58:51,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:58:51,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:51,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:51,708 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:51,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:58:51,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:58:51,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:58:51,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:58:51,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:51,995 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 15 treesize of output 7 [2023-11-29 02:58:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 02:58:52,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:52,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:52,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636773393] [2023-11-29 02:58:52,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:52,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159279986] [2023-11-29 02:58:52,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159279986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:52,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:52,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:58:52,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281954795] [2023-11-29 02:58:52,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:52,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:52,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:52,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:52,001 INFO L87 Difference]: Start difference. First operand 3496 states and 5128 transitions. Second operand has 3 states, 2 states have (on average 51.5) internal successors, (103), 3 states have internal predecessors, (103), 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) [2023-11-29 02:58:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:52,087 INFO L93 Difference]: Finished difference Result 3496 states and 5128 transitions. [2023-11-29 02:58:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 51.5) internal successors, (103), 3 states have internal predecessors, (103), 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 129 [2023-11-29 02:58:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:52,094 INFO L225 Difference]: With dead ends: 3496 [2023-11-29 02:58:52,094 INFO L226 Difference]: Without dead ends: 3495 [2023-11-29 02:58:52,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:52,095 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 2 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:52,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1101 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:52,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3495 states. [2023-11-29 02:58:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3495 to 3495. [2023-11-29 02:58:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 3370 states have (on average 1.4777448071216617) internal successors, (4980), 3380 states have internal predecessors, (4980), 67 states have call successors, (67), 57 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:58:52,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 5122 transitions. [2023-11-29 02:58:52,219 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 5122 transitions. Word has length 129 [2023-11-29 02:58:52,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:52,220 INFO L495 AbstractCegarLoop]: Abstraction has 3495 states and 5122 transitions. [2023-11-29 02:58:52,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 51.5) internal successors, (103), 3 states have internal predecessors, (103), 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) [2023-11-29 02:58:52,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 5122 transitions. [2023-11-29 02:58:52,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 02:58:52,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:52,222 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 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, 1, 1] [2023-11-29 02:58:52,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:58:52,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:58:52,429 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:52,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash -138271454, now seen corresponding path program 1 times [2023-11-29 02:58:52,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:52,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862302917] [2023-11-29 02:58:52,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:52,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:52,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918733594] [2023-11-29 02:58:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:52,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:52,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:52,478 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:52,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:58:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:52,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 02:58:52,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 02:58:53,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:58:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:58:53,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:53,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862302917] [2023-11-29 02:58:53,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:53,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918733594] [2023-11-29 02:58:53,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918733594] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:58:53,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:58:53,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2023-11-29 02:58:53,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924096003] [2023-11-29 02:58:53,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:58:53,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 02:58:53,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:53,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 02:58:53,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:58:53,311 INFO L87 Difference]: Start difference. First operand 3495 states and 5122 transitions. Second operand has 21 states, 19 states have (on average 7.526315789473684) internal successors, (143), 21 states have internal predecessors, (143), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:58:54,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:54,743 INFO L93 Difference]: Finished difference Result 6814 states and 9965 transitions. [2023-11-29 02:58:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 02:58:54,744 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.526315789473684) internal successors, (143), 21 states have internal predecessors, (143), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 130 [2023-11-29 02:58:54,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:54,750 INFO L225 Difference]: With dead ends: 6814 [2023-11-29 02:58:54,751 INFO L226 Difference]: Without dead ends: 3311 [2023-11-29 02:58:54,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=328, Invalid=1232, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 02:58:54,757 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 155 mSDsluCounter, 6371 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 6836 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:54,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 6836 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:58:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2023-11-29 02:58:54,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3282. [2023-11-29 02:58:54,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3157 states have (on average 1.4497941083306938) internal successors, (4577), 3167 states have internal predecessors, (4577), 67 states have call successors, (67), 57 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:58:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4719 transitions. [2023-11-29 02:58:54,909 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4719 transitions. Word has length 130 [2023-11-29 02:58:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:54,909 INFO L495 AbstractCegarLoop]: Abstraction has 3282 states and 4719 transitions. [2023-11-29 02:58:54,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.526315789473684) internal successors, (143), 21 states have internal predecessors, (143), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:58:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4719 transitions. [2023-11-29 02:58:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 02:58:54,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:54,911 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 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, 1, 1] [2023-11-29 02:58:54,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:58:55,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:55,112 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:55,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:55,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1199487793, now seen corresponding path program 2 times [2023-11-29 02:58:55,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:55,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060477033] [2023-11-29 02:58:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:55,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:55,171 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:55,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100347140] [2023-11-29 02:58:55,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:58:55,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:55,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:55,172 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:55,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:58:55,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:58:55,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:58:55,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 02:58:55,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:55,772 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 [2023-11-29 02:58:55,792 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 [2023-11-29 02:58:55,807 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 23 treesize of output 11 [2023-11-29 02:58:56,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:58:56,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 02:58:56,271 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 02:58:56,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:56,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:56,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060477033] [2023-11-29 02:58:56,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:56,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100347140] [2023-11-29 02:58:56,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100347140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:56,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:56,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:58:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215317332] [2023-11-29 02:58:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:56,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:58:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:56,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:58:56,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:58:56,273 INFO L87 Difference]: Start difference. First operand 3282 states and 4719 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 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) [2023-11-29 02:58:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:57,706 INFO L93 Difference]: Finished difference Result 7399 states and 10695 transitions. [2023-11-29 02:58:57,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:58:57,707 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 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 139 [2023-11-29 02:58:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:57,714 INFO L225 Difference]: With dead ends: 7399 [2023-11-29 02:58:57,714 INFO L226 Difference]: Without dead ends: 4161 [2023-11-29 02:58:57,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:58:57,718 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 775 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:57,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 3320 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 02:58:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4161 states. [2023-11-29 02:58:57,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4161 to 3289. [2023-11-29 02:58:57,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3164 states have (on average 1.4487989886219974) internal successors, (4584), 3174 states have internal predecessors, (4584), 67 states have call successors, (67), 57 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:58:57,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 4726 transitions. [2023-11-29 02:58:57,872 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 4726 transitions. Word has length 139 [2023-11-29 02:58:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:57,872 INFO L495 AbstractCegarLoop]: Abstraction has 3289 states and 4726 transitions. [2023-11-29 02:58:57,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 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) [2023-11-29 02:58:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 4726 transitions. [2023-11-29 02:58:57,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 02:58:57,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:57,874 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 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, 1, 1] [2023-11-29 02:58:57,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:58:58,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:58,075 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:58,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash 527657169, now seen corresponding path program 1 times [2023-11-29 02:58:58,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:58,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527665109] [2023-11-29 02:58:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:58,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:58,133 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:58,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214827110] [2023-11-29 02:58:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:58,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:58,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:58,135 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:58,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:58:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:58,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:58,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 02:58:58,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:58:58,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527665109] [2023-11-29 02:58:58,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:58:58,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214827110] [2023-11-29 02:58:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214827110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:58,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:58,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:58:58,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339588878] [2023-11-29 02:58:58,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:58,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:58:58,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:58,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:58:58,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:58,705 INFO L87 Difference]: Start difference. First operand 3289 states and 4726 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2023-11-29 02:58:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:58,870 INFO L93 Difference]: Finished difference Result 6539 states and 9408 transitions. [2023-11-29 02:58:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:58:58,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 139 [2023-11-29 02:58:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:58,876 INFO L225 Difference]: With dead ends: 6539 [2023-11-29 02:58:58,877 INFO L226 Difference]: Without dead ends: 3289 [2023-11-29 02:58:58,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:58,880 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 79 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:58,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1389 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:58,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2023-11-29 02:58:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3282. [2023-11-29 02:58:58,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3157 states have (on average 1.442825467215711) internal successors, (4555), 3167 states have internal predecessors, (4555), 67 states have call successors, (67), 57 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:58:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4697 transitions. [2023-11-29 02:58:58,975 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4697 transitions. Word has length 139 [2023-11-29 02:58:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:58,975 INFO L495 AbstractCegarLoop]: Abstraction has 3282 states and 4697 transitions. [2023-11-29 02:58:58,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2023-11-29 02:58:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4697 transitions. [2023-11-29 02:58:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 02:58:58,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:58,977 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 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, 1, 1, 1] [2023-11-29 02:58:58,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 02:58:59,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 02:58:59,177 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:58:59,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash -754336155, now seen corresponding path program 1 times [2023-11-29 02:58:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639086853] [2023-11-29 02:58:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:59,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:58:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058297615] [2023-11-29 02:58:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:59,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:58:59,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:59,232 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:58:59,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 02:58:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:59,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 02:58:59,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:59,829 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 [2023-11-29 02:58:59,846 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 [2023-11-29 02:58:59,861 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 23 treesize of output 11 [2023-11-29 02:59:00,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:59:00,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 02:59:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 02:59:00,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:59:00,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:00,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639086853] [2023-11-29 02:59:00,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:59:00,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058297615] [2023-11-29 02:59:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058297615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:00,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:00,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 02:59:00,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478393394] [2023-11-29 02:59:00,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:00,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:59:00,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:00,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:59:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:59:00,443 INFO L87 Difference]: Start difference. First operand 3282 states and 4697 transitions. Second operand has 14 states, 14 states have (on average 7.714285714285714) internal successors, (108), 13 states have internal predecessors, (108), 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) [2023-11-29 02:59:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:02,032 INFO L93 Difference]: Finished difference Result 7391 states and 10646 transitions. [2023-11-29 02:59:02,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:59:02,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.714285714285714) internal successors, (108), 13 states have internal predecessors, (108), 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 140 [2023-11-29 02:59:02,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:02,039 INFO L225 Difference]: With dead ends: 7391 [2023-11-29 02:59:02,040 INFO L226 Difference]: Without dead ends: 4153 [2023-11-29 02:59:02,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:59:02,045 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 735 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:02,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 3726 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:59:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2023-11-29 02:59:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 3282. [2023-11-29 02:59:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3157 states have (on average 1.4421919543870763) internal successors, (4553), 3167 states have internal predecessors, (4553), 67 states have call successors, (67), 57 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:59:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4695 transitions. [2023-11-29 02:59:02,211 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4695 transitions. Word has length 140 [2023-11-29 02:59:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:02,212 INFO L495 AbstractCegarLoop]: Abstraction has 3282 states and 4695 transitions. [2023-11-29 02:59:02,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.714285714285714) internal successors, (108), 13 states have internal predecessors, (108), 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) [2023-11-29 02:59:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4695 transitions. [2023-11-29 02:59:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 02:59:02,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:02,214 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 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, 1, 1, 1, 1] [2023-11-29 02:59:02,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 02:59:02,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 02:59:02,415 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:59:02,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 728024488, now seen corresponding path program 1 times [2023-11-29 02:59:02,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:02,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663942154] [2023-11-29 02:59:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:02,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:02,475 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:59:02,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777434759] [2023-11-29 02:59:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:02,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:02,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:59:02,477 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:59:02,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 02:59:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:03,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 02:59:03,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:59:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 8 proven. 126 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:59:03,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:59:03,948 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 75 proven. 15 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-29 02:59:03,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:03,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663942154] [2023-11-29 02:59:03,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:59:03,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777434759] [2023-11-29 02:59:03,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777434759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:59:03,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:59:03,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 25 [2023-11-29 02:59:03,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480345031] [2023-11-29 02:59:03,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:59:03,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 02:59:03,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:03,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 02:59:03,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:59:03,951 INFO L87 Difference]: Start difference. First operand 3282 states and 4695 transitions. Second operand has 25 states, 23 states have (on average 6.086956521739131) internal successors, (140), 25 states have internal predecessors, (140), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 02:59:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:06,702 INFO L93 Difference]: Finished difference Result 6549 states and 9446 transitions. [2023-11-29 02:59:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 02:59:06,703 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.086956521739131) internal successors, (140), 25 states have internal predecessors, (140), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 141 [2023-11-29 02:59:06,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:06,707 INFO L225 Difference]: With dead ends: 6549 [2023-11-29 02:59:06,708 INFO L226 Difference]: Without dead ends: 3390 [2023-11-29 02:59:06,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=596, Invalid=2484, Unknown=0, NotChecked=0, Total=3080 [2023-11-29 02:59:06,712 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 130 mSDsluCounter, 6147 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 6623 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:06,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 6623 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:59:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2023-11-29 02:59:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3348. [2023-11-29 02:59:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3223 states have (on average 1.4356189885200124) internal successors, (4627), 3231 states have internal predecessors, (4627), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:59:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4769 transitions. [2023-11-29 02:59:06,878 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4769 transitions. Word has length 141 [2023-11-29 02:59:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:06,878 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4769 transitions. [2023-11-29 02:59:06,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.086956521739131) internal successors, (140), 25 states have internal predecessors, (140), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 02:59:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4769 transitions. [2023-11-29 02:59:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 02:59:06,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:06,879 INFO L195 NwaCegarLoop]: trace histogram [22, 2, 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, 1, 1, 1, 1] [2023-11-29 02:59:06,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 02:59:07,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 02:59:07,080 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:59:07,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2039574441, now seen corresponding path program 2 times [2023-11-29 02:59:07,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:07,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773333419] [2023-11-29 02:59:07,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:07,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:07,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:59:07,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805014434] [2023-11-29 02:59:07,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:59:07,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:07,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:59:07,138 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:59:07,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 02:59:09,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:59:09,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:59:09,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 73 conjunts are in the unsatisfiable core [2023-11-29 02:59:09,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:59:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 159 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-29 02:59:10,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:59:10,763 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 201 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 02:59:10,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:10,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773333419] [2023-11-29 02:59:10,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:59:10,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805014434] [2023-11-29 02:59:10,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805014434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:59:10,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:59:10,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 32 [2023-11-29 02:59:10,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675888118] [2023-11-29 02:59:10,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:59:10,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 02:59:10,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:10,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 02:59:10,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:59:10,766 INFO L87 Difference]: Start difference. First operand 3348 states and 4769 transitions. Second operand has 32 states, 30 states have (on average 5.166666666666667) internal successors, (155), 32 states have internal predecessors, (155), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:59:27,193 WARN L293 SmtUtils]: Spent 13.77s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:59:38,598 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:59:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:51,844 INFO L93 Difference]: Finished difference Result 6724 states and 9658 transitions. [2023-11-29 02:59:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 02:59:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 5.166666666666667) internal successors, (155), 32 states have internal predecessors, (155), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 148 [2023-11-29 02:59:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:51,849 INFO L225 Difference]: With dead ends: 6724 [2023-11-29 02:59:51,849 INFO L226 Difference]: Without dead ends: 3473 [2023-11-29 02:59:51,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 40.5s TimeCoverageRelationStatistics Valid=1064, Invalid=3628, Unknown=0, NotChecked=0, Total=4692 [2023-11-29 02:59:51,853 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 116 mSDsluCounter, 7574 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:51,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 8051 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:59:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2023-11-29 02:59:52,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 3444. [2023-11-29 02:59:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3444 states, 3319 states have (on average 1.4230189816209702) internal successors, (4723), 3327 states have internal predecessors, (4723), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:59:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4865 transitions. [2023-11-29 02:59:52,075 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4865 transitions. Word has length 148 [2023-11-29 02:59:52,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:52,076 INFO L495 AbstractCegarLoop]: Abstraction has 3444 states and 4865 transitions. [2023-11-29 02:59:52,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 5.166666666666667) internal successors, (155), 32 states have internal predecessors, (155), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:59:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4865 transitions. [2023-11-29 02:59:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 02:59:52,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:52,077 INFO L195 NwaCegarLoop]: trace histogram [34, 2, 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, 1, 1, 1, 1] [2023-11-29 02:59:52,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 02:59:52,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:52,277 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:59:52,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:52,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1841115159, now seen corresponding path program 3 times [2023-11-29 02:59:52,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:52,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354020731] [2023-11-29 02:59:52,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:52,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:52,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:59:52,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031941658] [2023-11-29 02:59:52,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:59:52,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:52,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:59:52,342 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:59:52,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 02:59:53,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:59:53,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:59:53,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:59:53,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:59:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-11-29 02:59:53,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:59:53,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:53,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354020731] [2023-11-29 02:59:53,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:59:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031941658] [2023-11-29 02:59:53,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031941658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:53,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:53,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:53,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844916823] [2023-11-29 02:59:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:53,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:53,639 INFO L87 Difference]: Start difference. First operand 3444 states and 4865 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2023-11-29 02:59:54,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:54,263 INFO L93 Difference]: Finished difference Result 6871 states and 9727 transitions. [2023-11-29 02:59:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:54,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 160 [2023-11-29 02:59:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:54,271 INFO L225 Difference]: With dead ends: 6871 [2023-11-29 02:59:54,271 INFO L226 Difference]: Without dead ends: 3479 [2023-11-29 02:59:54,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:59:54,276 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 16 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:54,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2532 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:59:54,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-11-29 02:59:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3472. [2023-11-29 02:59:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 3347 states have (on average 1.419778906483418) internal successors, (4752), 3355 states have internal predecessors, (4752), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:59:54,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 4894 transitions. [2023-11-29 02:59:54,480 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 4894 transitions. Word has length 160 [2023-11-29 02:59:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:54,480 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 4894 transitions. [2023-11-29 02:59:54,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2023-11-29 02:59:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 4894 transitions. [2023-11-29 02:59:54,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 02:59:54,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:54,482 INFO L195 NwaCegarLoop]: trace histogram [34, 2, 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, 1, 1, 1, 1, 1] [2023-11-29 02:59:54,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 02:59:54,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:54,682 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:59:54,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:54,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1463266939, now seen corresponding path program 1 times [2023-11-29 02:59:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392718826] [2023-11-29 02:59:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:54,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:54,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:59:54,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [54729707] [2023-11-29 02:59:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:54,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:54,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:59:54,744 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:59:54,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 02:59:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:55,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:59:55,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:59:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-11-29 02:59:55,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:59:55,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392718826] [2023-11-29 02:59:55,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:59:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54729707] [2023-11-29 02:59:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54729707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:55,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:55,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326518612] [2023-11-29 02:59:55,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:55,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:55,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:55,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:55,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:55,576 INFO L87 Difference]: Start difference. First operand 3472 states and 4894 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2023-11-29 02:59:55,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:55,992 INFO L93 Difference]: Finished difference Result 6939 states and 9793 transitions. [2023-11-29 02:59:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:59:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 161 [2023-11-29 02:59:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:55,997 INFO L225 Difference]: With dead ends: 6939 [2023-11-29 02:59:55,997 INFO L226 Difference]: Without dead ends: 3527 [2023-11-29 02:59:56,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:59:56,001 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 45 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:56,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2544 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:59:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2023-11-29 02:59:56,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 3486. [2023-11-29 02:59:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 3361 states have (on average 1.4180303481106813) internal successors, (4766), 3369 states have internal predecessors, (4766), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:59:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 4908 transitions. [2023-11-29 02:59:56,203 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 4908 transitions. Word has length 161 [2023-11-29 02:59:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:56,203 INFO L495 AbstractCegarLoop]: Abstraction has 3486 states and 4908 transitions. [2023-11-29 02:59:56,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2023-11-29 02:59:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 4908 transitions. [2023-11-29 02:59:56,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 02:59:56,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:56,205 INFO L195 NwaCegarLoop]: trace histogram [34, 2, 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, 1, 1, 1, 1, 1] [2023-11-29 02:59:56,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 02:59:56,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 02:59:56,406 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:59:56,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1141302512, now seen corresponding path program 1 times [2023-11-29 02:59:56,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:56,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608417345] [2023-11-29 02:59:56,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:56,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:56,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:59:56,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485761830] [2023-11-29 02:59:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:56,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:56,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:59:56,464 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:59:56,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 02:59:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:57,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:59:57,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:59:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-11-29 02:59:57,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:59:57,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608417345] [2023-11-29 02:59:57,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:59:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485761830] [2023-11-29 02:59:57,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485761830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:57,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:57,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381164825] [2023-11-29 02:59:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:57,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:57,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:57,313 INFO L87 Difference]: Start difference. First operand 3486 states and 4908 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2023-11-29 02:59:57,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:57,751 INFO L93 Difference]: Finished difference Result 6956 states and 9813 transitions. [2023-11-29 02:59:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:57,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 161 [2023-11-29 02:59:57,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:57,773 INFO L225 Difference]: With dead ends: 6956 [2023-11-29 02:59:57,773 INFO L226 Difference]: Without dead ends: 3528 [2023-11-29 02:59:57,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:59:57,777 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 15 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:57,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2538 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:59:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2023-11-29 02:59:57,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3486. [2023-11-29 02:59:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 3361 states have (on average 1.4180303481106813) internal successors, (4766), 3369 states have internal predecessors, (4766), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 02:59:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 4908 transitions. [2023-11-29 02:59:57,930 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 4908 transitions. Word has length 161 [2023-11-29 02:59:57,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:57,930 INFO L495 AbstractCegarLoop]: Abstraction has 3486 states and 4908 transitions. [2023-11-29 02:59:57,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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) [2023-11-29 02:59:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 4908 transitions. [2023-11-29 02:59:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 02:59:57,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:57,931 INFO L195 NwaCegarLoop]: trace histogram [34, 2, 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, 1, 1, 1, 1, 1, 1] [2023-11-29 02:59:57,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 02:59:58,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 02:59:58,132 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:59:58,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:58,132 INFO L85 PathProgramCache]: Analyzing trace with hash 116462676, now seen corresponding path program 1 times [2023-11-29 02:59:58,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:58,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10225918] [2023-11-29 02:59:58,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:58,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:58,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:59:58,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75590536] [2023-11-29 02:59:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:58,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:59:58,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:59:58,193 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:59:58,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 02:59:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:59,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-29 02:59:59,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:00:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 6 proven. 576 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 03:00:00,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:00:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 308 proven. 78 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-29 03:00:01,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:00:01,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10225918] [2023-11-29 03:00:01,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:00:01,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75590536] [2023-11-29 03:00:01,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75590536] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:00:01,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:00:01,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17] total 37 [2023-11-29 03:00:01,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601678001] [2023-11-29 03:00:01,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:00:01,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-29 03:00:01,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:00:01,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-29 03:00:01,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1062, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 03:00:01,029 INFO L87 Difference]: Start difference. First operand 3486 states and 4908 transitions. Second operand has 37 states, 35 states have (on average 4.428571428571429) internal successors, (155), 37 states have internal predecessors, (155), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 03:00:41,066 WARN L293 SmtUtils]: Spent 32.92s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:01:08,604 WARN L293 SmtUtils]: Spent 19.58s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:01:30,961 WARN L293 SmtUtils]: Spent 17.49s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:01:42,974 WARN L293 SmtUtils]: Spent 9.75s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:02:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:00,107 INFO L93 Difference]: Finished difference Result 6986 states and 9959 transitions. [2023-11-29 03:02:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-11-29 03:02:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 4.428571428571429) internal successors, (155), 37 states have internal predecessors, (155), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 162 [2023-11-29 03:02:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:00,113 INFO L225 Difference]: With dead ends: 6986 [2023-11-29 03:02:00,113 INFO L226 Difference]: Without dead ends: 3656 [2023-11-29 03:02:00,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1795 ImplicationChecksByTransitivity, 117.2s TimeCoverageRelationStatistics Valid=1771, Invalid=7159, Unknown=0, NotChecked=0, Total=8930 [2023-11-29 03:02:00,120 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 201 mSDsluCounter, 9441 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 9916 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:00,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 9916 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 03:02:00,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3656 states. [2023-11-29 03:02:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3656 to 3560. [2023-11-29 03:02:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3435 states have (on average 1.4171761280931587) internal successors, (4868), 3443 states have internal predecessors, (4868), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 03:02:00,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5010 transitions. [2023-11-29 03:02:00,337 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5010 transitions. Word has length 162 [2023-11-29 03:02:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:00,338 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 5010 transitions. [2023-11-29 03:02:00,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 4.428571428571429) internal successors, (155), 37 states have internal predecessors, (155), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 03:02:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5010 transitions. [2023-11-29 03:02:00,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 03:02:00,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:00,340 INFO L195 NwaCegarLoop]: trace histogram [48, 2, 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, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:00,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 03:02:00,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:02:00,540 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 03:02:00,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:00,540 INFO L85 PathProgramCache]: Analyzing trace with hash 32105524, now seen corresponding path program 2 times [2023-11-29 03:02:00,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757792770] [2023-11-29 03:02:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:00,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:00,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:00,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85429872] [2023-11-29 03:02:00,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:02:00,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:00,613 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:00,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:02:09,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:02:09,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:02:09,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 03:02:09,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2023-11-29 03:02:18,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:18,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:18,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757792770] [2023-11-29 03:02:18,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:18,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85429872] [2023-11-29 03:02:18,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85429872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:18,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:18,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:02:18,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263975608] [2023-11-29 03:02:18,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:18,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:02:18,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:18,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:02:18,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=90, Unknown=1, NotChecked=0, Total=110 [2023-11-29 03:02:18,525 INFO L87 Difference]: Start difference. First operand 3560 states and 5010 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 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) [2023-11-29 03:02:21,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:02:23,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:23,007 INFO L93 Difference]: Finished difference Result 7097 states and 9995 transitions. [2023-11-29 03:02:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:02:23,007 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 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 176 [2023-11-29 03:02:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:23,012 INFO L225 Difference]: With dead ends: 7097 [2023-11-29 03:02:23,012 INFO L226 Difference]: Without dead ends: 3595 [2023-11-29 03:02:23,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=23, Invalid=108, Unknown=1, NotChecked=0, Total=132 [2023-11-29 03:02:23,017 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 14 mSDsluCounter, 3696 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:23,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4164 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 03:02:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2023-11-29 03:02:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3581. [2023-11-29 03:02:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3581 states, 3456 states have (on average 1.4146412037037037) internal successors, (4889), 3464 states have internal predecessors, (4889), 67 states have call successors, (67), 59 states have call predecessors, (67), 47 states have return successors, (75), 57 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-29 03:02:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 5031 transitions. [2023-11-29 03:02:23,226 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 5031 transitions. Word has length 176 [2023-11-29 03:02:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:23,226 INFO L495 AbstractCegarLoop]: Abstraction has 3581 states and 5031 transitions. [2023-11-29 03:02:23,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 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) [2023-11-29 03:02:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 5031 transitions. [2023-11-29 03:02:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 03:02:23,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:23,227 INFO L195 NwaCegarLoop]: trace histogram [48, 2, 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, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:23,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:02:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:02:23,428 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 03:02:23,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1308668464, now seen corresponding path program 1 times [2023-11-29 03:02:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:23,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813090310] [2023-11-29 03:02:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:23,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:23,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828680536] [2023-11-29 03:02:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:23,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:23,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:23,499 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:23,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5839af23-307b-43ff-9003-1f99d744a7f1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:02:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:25,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 355 conjunts are in the unsatisfiable core [2023-11-29 03:02:25,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:25,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 03:02:25,813 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-29 03:02:25,813 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 [2023-11-29 03:02:25,847 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 15 treesize of output 1 [2023-11-29 03:02:25,896 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 18 treesize of output 10 [2023-11-29 03:02:27,649 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 03:02:27,649 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-11-29 03:02:27,732 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:27,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2885 treesize of output 2490 [2023-11-29 03:02:27,754 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:27,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1793 treesize of output 1477 [2023-11-29 03:02:27,792 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:27,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2871 treesize of output 2486 [2023-11-29 03:02:27,824 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2023-11-29 03:02:27,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1623 treesize of output 1161 [2023-11-29 03:02:27,839 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 35 treesize of output 22 [2023-11-29 03:02:27,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2023-11-29 03:02:27,853 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 34 treesize of output 11 [2023-11-29 03:02:27,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2023-11-29 03:02:27,888 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:27,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2119 treesize of output 1727 [2023-11-29 03:02:27,929 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:27,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3221 treesize of output 2586 [2023-11-29 03:02:27,966 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:27,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2430 treesize of output 1972 [2023-11-29 03:02:28,000 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3662 treesize of output 2929 [2023-11-29 03:02:28,024 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1298 treesize of output 1 [2023-11-29 03:02:28,064 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2565 treesize of output 2254 [2023-11-29 03:02:28,135 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4071 treesize of output 3143 [2023-11-29 03:02:28,160 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:28,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1533 treesize of output 1283 [2023-11-29 03:02:28,194 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:28,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2430 treesize of output 1972 [2023-11-29 03:02:28,225 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3662 treesize of output 2929 [2023-11-29 03:02:28,243 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1298 treesize of output 1 [2023-11-29 03:02:28,267 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:28,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1668 treesize of output 1376 [2023-11-29 03:02:28,300 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4513 treesize of output 3475 [2023-11-29 03:02:28,332 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2745 treesize of output 2384 [2023-11-29 03:02:28,354 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1229 treesize of output 1 [2023-11-29 03:02:28,381 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3312 treesize of output 2637 [2023-11-29 03:02:28,417 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3593 treesize of output 2870 [2023-11-29 03:02:28,454 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2610 treesize of output 2289 [2023-11-29 03:02:28,479 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:28,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1577 treesize of output 1317 [2023-11-29 03:02:28,510 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2624 treesize of output 2293 [2023-11-29 03:02:28,530 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1334 treesize of output 1 [2023-11-29 03:02:28,554 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2776 treesize of output 2241 [2023-11-29 03:02:28,576 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:28,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1804 treesize of output 1480 [2023-11-29 03:02:28,608 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:28,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2115 treesize of output 1725 [2023-11-29 03:02:28,635 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3217 treesize of output 2584 [2023-11-29 03:02:28,653 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1116 treesize of output 1 [2023-11-29 03:02:28,679 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:28,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1317 treesize of output 1123 [2023-11-29 03:02:28,707 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2304 treesize of output 2057 [2023-11-29 03:02:28,736 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3548 treesize of output 2744 [2023-11-29 03:02:28,767 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2867 treesize of output 2292 [2023-11-29 03:02:28,798 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3148 treesize of output 2525 [2023-11-29 03:02:28,815 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1047 treesize of output 1 [2023-11-29 03:02:28,834 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:28,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1452 treesize of output 1216 [2023-11-29 03:02:28,861 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2484 treesize of output 2187 [2023-11-29 03:02:28,892 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:28,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3990 treesize of output 3076 [2023-11-29 03:02:28,922 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:28,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2115 treesize of output 1725 [2023-11-29 03:02:28,947 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:28,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3217 treesize of output 2584 [2023-11-29 03:02:28,965 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:28,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1116 treesize of output 1 [2023-11-29 03:02:29,001 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:29,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1251 treesize of output 916 [2023-11-29 03:02:29,067 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2306 treesize of output 1870 [2023-11-29 03:02:29,094 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2376 treesize of output 1940 [2023-11-29 03:02:29,124 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2617 treesize of output 2115 [2023-11-29 03:02:29,141 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:29,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1429 treesize of output 1050 [2023-11-29 03:02:29,169 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2687 treesize of output 2185 [2023-11-29 03:02:29,217 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2719 treesize of output 2368 [2023-11-29 03:02:29,250 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:29,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1672 treesize of output 1392 [2023-11-29 03:02:29,292 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2705 treesize of output 2364 [2023-11-29 03:02:29,326 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:29,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1360 treesize of output 991 [2023-11-29 03:02:29,354 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:29,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3541 treesize of output 2810 [2023-11-29 03:02:29,387 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:29,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3770 treesize of output 3007 [2023-11-29 03:02:29,430 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2899 treesize of output 2498 [2023-11-29 03:02:29,460 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:29,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1807 treesize of output 1485 [2023-11-29 03:02:29,501 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2885 treesize of output 2494 [2023-11-29 03:02:29,543 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2617 treesize of output 2115 [2023-11-29 03:02:29,567 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:29,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1429 treesize of output 1050 [2023-11-29 03:02:29,599 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2687 treesize of output 2185 [2023-11-29 03:02:29,649 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4659 treesize of output 3595 [2023-11-29 03:02:29,698 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2741 treesize of output 2376 [2023-11-29 03:02:29,733 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:29,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1688 treesize of output 1394 [2023-11-29 03:02:29,810 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:29,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1658 treesize of output 1384 [2023-11-29 03:02:29,838 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2705 treesize of output 2360 [2023-11-29 03:02:29,870 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:29,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2691 treesize of output 2356 [2023-11-29 03:02:29,891 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:29,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1189 treesize of output 1 [2023-11-29 03:02:29,914 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:29,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2188 treesize of output 1786 [2023-11-29 03:02:29,937 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:29,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3290 treesize of output 2645 [2023-11-29 03:02:29,959 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:29,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1120 treesize of output 1 [2023-11-29 03:02:29,985 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:29,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3221 treesize of output 2586 [2023-11-29 03:02:30,010 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:30,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2940 treesize of output 2353 [2023-11-29 03:02:30,051 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:30,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4071 treesize of output 3143 [2023-11-29 03:02:30,084 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:30,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2565 treesize of output 2254 [2023-11-29 03:02:30,108 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:30,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1533 treesize of output 1283 [2023-11-29 03:02:30,130 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:30,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1189 treesize of output 1 [2023-11-29 03:02:30,153 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:30,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2188 treesize of output 1786 [2023-11-29 03:02:30,182 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:30,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3290 treesize of output 2645 [2023-11-29 03:02:30,202 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 03:02:30,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1407 treesize of output 1 [2023-11-29 03:02:30,226 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 03:02:30,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1877 treesize of output 1541 [2023-11-29 03:02:30,255 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 03:02:30,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2849 treesize of output 2302 [2023-11-29 03:02:30,290 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:30,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3629 treesize of output 2811 [2023-11-29 03:02:30,323 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 03:02:30,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2385 treesize of output 2124 [2023-11-29 03:02:30,344 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 03:02:30,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1398 treesize of output 1190 [2023-11-29 03:02:30,436 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 15 treesize of output 7 [2023-11-29 03:02:39,466 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-11-29 03:02:39,466 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 20 treesize of output 22 [2023-11-29 03:02:39,605 INFO L349 Elim1Store]: treesize reduction 167, result has 0.6 percent of original size [2023-11-29 03:02:39,606 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 6 new quantified variables, introduced 4 case distinctions, treesize of input 355 treesize of output 253 [2023-11-29 03:02:39,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:39,734 INFO L349 Elim1Store]: treesize reduction 507, result has 11.8 percent of original size [2023-11-29 03:02:39,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 529 treesize of output 387 [2023-11-29 03:02:39,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:39,746 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 227 treesize of output 190 [2023-11-29 03:02:39,793 INFO L349 Elim1Store]: treesize reduction 63, result has 49.2 percent of original size [2023-11-29 03:02:39,793 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 136 [2023-11-29 03:02:39,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 03:02:39,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-11-29 03:02:39,899 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 55 treesize of output 45 [2023-11-29 03:02:39,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:39,912 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 73 treesize of output 61 [2023-11-29 03:02:41,220 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 13 treesize of output 9 [2023-11-29 03:02:41,347 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 23 treesize of output 22 [2023-11-29 03:02:41,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-11-29 03:02:41,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2023-11-29 03:02:41,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2023-11-29 03:02:41,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2023-11-29 03:02:42,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2023-11-29 03:02:42,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 94 [2023-11-29 03:02:42,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 106 [2023-11-29 03:02:42,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 118 [2023-11-29 03:02:43,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 130 [2023-11-29 03:02:43,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 142 [2023-11-29 03:02:43,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 154 [2023-11-29 03:02:43,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 166 [2023-11-29 03:02:44,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 178 [2023-11-29 03:02:44,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 190 [2023-11-29 03:02:44,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 202 [2023-11-29 03:02:45,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 214 [2023-11-29 03:02:45,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 226 [2023-11-29 03:02:46,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 238 [2023-11-29 03:02:46,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 210 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 250 [2023-11-29 03:02:47,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:02:47,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 203 treesize of output 262 [2023-11-29 03:02:48,013 INFO L349 Elim1Store]: treesize reduction 252, result has 23.9 percent of original size [2023-11-29 03:02:48,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 1044 treesize of output 829 [2023-11-29 03:02:48,057 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2023-11-29 03:02:48,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1110 treesize of output 862 [2023-11-29 03:02:49,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 03:02:49,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 03:02:50,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2023-11-29 03:02:51,470 INFO L349 Elim1Store]: treesize reduction 120, result has 13.7 percent of original size [2023-11-29 03:02:51,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 865 treesize of output 469 [2023-11-29 03:02:51,496 INFO L349 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2023-11-29 03:02:51,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 802 treesize of output 450 [2023-11-29 03:02:51,511 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 743 treesize of output 436 [2023-11-29 03:02:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 03:02:53,120 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:02:53,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 23 select indices, 23 select index equivalence classes, 233 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 753 treesize of output 803 [2023-11-29 03:02:53,145 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-29 03:02:53,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 801 treesize of output 404 [2023-11-29 03:02:53,159 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 0 case distinctions, treesize of input 386 treesize of output 205 [2023-11-29 03:02:53,170 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 207 treesize of output 160 [2023-11-29 03:02:53,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 7 proven. 1234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:02:53,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:54,139 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse11 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse9 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse10 (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11))) (let ((.cse6 (mod |c_ULTIMATE.start_main_~_ha_bkt~0#1| 4294967296)) (.cse4 (select (select |c_#memory_$Pointer$#4.base| .cse9) .cse10))) (let ((.cse5 (select |c_#memory_int#4| .cse4)) (.cse2 (* .cse6 12)) (.cse3 (select (select |c_#memory_$Pointer$#4.offset| .cse9) .cse10))) (and (or (forall ((v_ArrVal_10607 (Array Int Int))) (let ((.cse1 (+ .cse2 .cse3 (- 51539607548)))) (let ((.cse0 (select (store (store |c_#memory_int#4| .cse4 (store .cse5 .cse1 (+ (select .cse5 .cse1) 1))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_10607) .cse4))) (< (mod (select .cse0 .cse1) 4294967296) (* (mod (+ (* 5 (select .cse0 (+ (- 51539607544) .cse2 .cse3))) 5) 2147483648) 2))))) (< .cse6 2147483648)) (or (< 2147483647 .cse6) (forall ((v_ArrVal_10607 (Array Int Int))) (let ((.cse8 (+ .cse2 4 .cse3))) (let ((.cse7 (select (store (store |c_#memory_int#4| .cse4 (store .cse5 .cse8 (+ (select .cse5 .cse8) 1))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_10607) .cse4))) (< (mod (select .cse7 .cse8) 4294967296) (* (mod (+ 5 (* (select .cse7 (+ .cse2 8 .cse3)) 5)) 2147483648) 2))))))))))) is different from false [2023-11-29 03:02:54,935 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10603 (Array Int Int)) (v_ArrVal_10602 (Array Int Int)) (v_ArrVal_10601 (Array Int Int)) (v_ArrVal_10607 (Array Int Int))) (let ((.cse11 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse6 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse12 (+ (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11) 12))) (or (let ((.cse10 (store |c_#memory_$Pointer$#4.offset| .cse6 v_ArrVal_10601)) (.cse7 (store |c_#memory_$Pointer$#4.base| .cse6 v_ArrVal_10603))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~users~0#1.base|) .cse11))) (let ((.cse2 (select (select .cse10 .cse8) .cse9))) (let ((.cse1 (+ .cse2 4))) (let ((.cse0 (let ((.cse4 (select (select .cse7 .cse8) .cse9))) (select (store (let ((.cse3 (store |c_#memory_int#4| .cse6 v_ArrVal_10602))) (store .cse3 .cse4 (let ((.cse5 (select .cse3 .cse4))) (store .cse5 .cse1 (+ (select .cse5 .cse1) 1))))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_10607) .cse4)))) (< (mod (select .cse0 .cse1) 4294967296) (* (mod (+ 5 (* (select .cse0 (+ .cse2 8)) 5)) 2147483648) 2))))))) (not (= v_ArrVal_10603 (store (select |c_#memory_$Pointer$#4.base| .cse6) .cse12 (select v_ArrVal_10603 .cse12)))) (not (= v_ArrVal_10601 (store (select |c_#memory_$Pointer$#4.offset| .cse6) .cse12 (select v_ArrVal_10601 .cse12)))))))) is different from false [2023-11-29 03:02:54,960 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10603 (Array Int Int)) (v_ArrVal_10602 (Array Int Int)) (v_ArrVal_10601 (Array Int Int)) (v_ArrVal_10607 (Array Int Int))) (let ((.cse12 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse1 (+ (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse12) 12)) (.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse12))) (or (not (= (store (select |c_#memory_$Pointer$#4.base| .cse0) .cse1 (select v_ArrVal_10603 .cse1)) v_ArrVal_10603)) (not (= v_ArrVal_10601 (store (select |c_#memory_$Pointer$#4.offset| .cse0) .cse1 (select v_ArrVal_10601 .cse1)))) (let ((.cse11 (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_10601)) (.cse8 (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_10603))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)) (.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12))) (let ((.cse4 (select (select .cse11 .cse9) .cse10))) (let ((.cse3 (+ .cse4 4))) (let ((.cse2 (let ((.cse6 (select (select .cse8 .cse9) .cse10))) (select (store (let ((.cse5 (store |c_#memory_int#4| .cse0 v_ArrVal_10602))) (store .cse5 .cse6 (let ((.cse7 (select .cse5 .cse6))) (store .cse7 .cse3 (+ (select .cse7 .cse3) 1))))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_10607) .cse6)))) (< (mod (select .cse2 .cse3) 4294967296) (* (mod (+ 5 (* 5 (select .cse2 (+ .cse4 8)))) 2147483648) 2))))))))))) is different from false [2023-11-29 03:07:49,958 WARN L293 SmtUtils]: Spent 4.92m on a formula simplification. DAG size of input: 479 DAG size of output: 478 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 03:07:55,520 WARN L293 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 03:08:06,546 WARN L293 SmtUtils]: Spent 11.02s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 03:08:15,302 WARN L293 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 101 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 03:08:15,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:08:15,474 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 1 new quantified variables, introduced 22 case distinctions, treesize of input 1683 treesize of output 1214 [2023-11-29 03:08:16,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:08:16,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 1 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 275 case distinctions, treesize of input 1336 treesize of output 6884 [2023-11-29 03:08:16,640 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 868 treesize of output 608 [2023-11-29 03:08:16,684 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 368 treesize of output 238 [2023-11-29 03:08:20,144 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_10601 (Array Int Int)) (v_ArrVal_10687 (Array Int Int)) (v_ArrVal_10686 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10687)) (.cse0 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10686))) (let ((.cse2 (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) 12)) (.cse1 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (or (not (= v_ArrVal_10601 (store (select .cse0 .cse1) .cse2 (select v_ArrVal_10601 .cse2)))) (forall ((v_ArrVal_10603 (Array Int Int))) (let ((.cse3 (let ((.cse5 (store .cse0 .cse1 v_ArrVal_10601))) (select (select .cse5 (select (select (store .cse4 .cse1 v_ArrVal_10603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))))) (or (= .cse3 (+ 7 |c_ULTIMATE.start_main_#t~mem103#1.offset|)) (= (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 6) .cse3) (= (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 8) .cse3) (= .cse3 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 1)) (= .cse3 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 3)) (= .cse3 (+ 16 |c_ULTIMATE.start_main_#t~mem103#1.offset|)) (= (+ 5 |c_ULTIMATE.start_main_#t~mem103#1.offset|) .cse3) (= .cse3 |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= .cse3 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 13)) (= .cse3 (+ 9 |c_ULTIMATE.start_main_#t~mem103#1.offset|)) (= (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 12) .cse3) (= .cse3 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 14)) (= .cse3 (+ 2 |c_ULTIMATE.start_main_#t~mem103#1.offset|)) (= (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 4) .cse3) (= .cse3 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 15)) (= .cse3 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 10)) (= (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 17) .cse3) (= (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 11) .cse3) (not (= v_ArrVal_10603 (store (select .cse4 .cse1) .cse2 (select v_ArrVal_10603 .cse2))))))))))) (forall ((v_ArrVal_10601 (Array Int Int)) (v_ArrVal_10687 (Array Int Int)) (v_ArrVal_10686 (Array Int Int))) (let ((.cse10 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10686)) (.cse8 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10687))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (.cse11 (+ (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) 12))) (or (forall ((v_ArrVal_10603 (Array Int Int))) (or (not (= (select (let ((.cse7 (store .cse8 .cse9 v_ArrVal_10603))) (select .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (select (select (store .cse10 .cse9 v_ArrVal_10601) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) .cse9)) (not (= v_ArrVal_10603 (store (select .cse8 .cse9) .cse11 (select v_ArrVal_10603 .cse11)))))) (not (= v_ArrVal_10601 (store (select .cse10 .cse9) .cse11 (select v_ArrVal_10601 .cse11)))))))) (forall ((v_ArrVal_10601 (Array Int Int)) (v_ArrVal_10687 (Array Int Int)) (v_ArrVal_10686 (Array Int Int))) (let ((.cse15 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10686)) (.cse13 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10687))) (let ((.cse14 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (.cse16 (+ (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) 12))) (or (forall ((v_ArrVal_10603 (Array Int Int))) (or (= (select (let ((.cse12 (store .cse13 .cse14 v_ArrVal_10603))) (select .cse12 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (select (select (store .cse15 .cse14 v_ArrVal_10601) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) |c_ULTIMATE.start_main_#t~mem103#1.base|) (not (= v_ArrVal_10603 (store (select .cse13 .cse14) .cse16 (select v_ArrVal_10603 .cse16)))))) (not (= v_ArrVal_10601 (store (select .cse15 .cse14) .cse16 (select v_ArrVal_10601 .cse16)))))))) (forall ((v_ArrVal_10601 (Array Int Int)) (v_ArrVal_10687 (Array Int Int)) (v_ArrVal_10686 (Array Int Int))) (let ((.cse20 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10686)) (.cse18 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_10687))) (let ((.cse19 (select (select .cse18 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) (.cse21 (+ (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) 12))) (or (forall ((v_ArrVal_10603 (Array Int Int))) (or (not (= (select (let ((.cse17 (store .cse18 .cse19 v_ArrVal_10603))) (select .cse17 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) .cse6))) (select (select (store .cse20 .cse19 v_ArrVal_10601) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)) |c_ULTIMATE.start_main_~user~0#1.base|)) (not (= v_ArrVal_10603 (store (select .cse18 .cse19) .cse21 (select v_ArrVal_10603 .cse21)))))) (not (= v_ArrVal_10601 (store (select .cse20 .cse19) .cse21 (select v_ArrVal_10601 .cse21)))))))))) is different from false [2023-11-29 03:08:20,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:08:20,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813090310] [2023-11-29 03:08:20,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:08:20,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828680536] [2023-11-29 03:08:20,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828680536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:08:20,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:08:20,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2023-11-29 03:08:20,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241519788] [2023-11-29 03:08:20,157 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:08:20,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-11-29 03:08:20,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:08:20,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-11-29 03:08:20,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=6249, Unknown=38, NotChecked=644, Total=7140 [2023-11-29 03:08:20,160 INFO L87 Difference]: Start difference. First operand 3581 states and 5031 transitions. Second operand has 78 states, 73 states have (on average 2.2739726027397262) internal successors, (166), 72 states have internal predecessors, (166), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:08:25,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:08:31,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:08:40,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:08:45,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:08:50,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:08:57,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:06,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:13,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:21,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:29,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:36,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:44,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:52,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:09:59,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:05,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:14,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:21,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:28,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:36,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:45,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:10:52,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:00,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:08,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:17,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:26,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:33,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:42,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:49,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:11:54,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:03,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:08,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:15,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:20,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:28,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:32,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:34,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:38,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:42,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:49,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:12:58,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]