./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:10:57,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:10:58,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:10:58,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:10:58,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:10:58,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:10:58,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:10:58,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:10:58,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:10:58,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:10:58,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:10:58,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:10:58,080 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:10:58,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:10:58,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:10:58,087 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:10:58,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:10:58,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:10:58,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:10:58,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:10:58,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:10:58,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:10:58,090 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:10:58,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:10:58,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:10:58,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:10:58,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:10:58,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:10:58,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:10:58,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:10:58,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:10:58,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:10:58,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:10:58,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:10:58,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:10:58,096 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:10:58,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:10:58,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:10:58,097 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:10:58,097 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_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2023-11-12 02:10:58,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:10:58,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:10:58,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:10:58,391 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:10:58,392 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:10:58,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-11-12 02:11:01,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:11:01,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:11:01,828 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-11-12 02:11:01,857 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/data/0dc79ddb8/b58f01e3680147d183a571d193fe56b5/FLAG774cecfd9 [2023-11-12 02:11:01,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/data/0dc79ddb8/b58f01e3680147d183a571d193fe56b5 [2023-11-12 02:11:01,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:11:01,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:11:01,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:11:01,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:11:01,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:11:01,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:11:01" (1/1) ... [2023-11-12 02:11:01,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f85ebd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:01, skipping insertion in model container [2023-11-12 02:11:01,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:11:01" (1/1) ... [2023-11-12 02:11:01,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:11:02,494 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2023-11-12 02:11:02,508 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2023-11-12 02:11:02,645 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2023-11-12 02:11:02,646 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2023-11-12 02:11:02,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:11:02,680 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:11:02,721 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2023-11-12 02:11:02,724 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2023-11-12 02:11:02,789 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2023-11-12 02:11:02,790 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2023-11-12 02:11:02,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:11:02,939 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:11:02,947 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:11:02,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02 WrapperNode [2023-11-12 02:11:02,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:11:02,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:11:02,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:11:02,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:11:02,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,094 INFO L138 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1373 [2023-11-12 02:11:03,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:11:03,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:11:03,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:11:03,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:11:03,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:11:03,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:11:03,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:11:03,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:11:03,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (1/1) ... [2023-11-12 02:11:03,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:11:03,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:11:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:11:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:11:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:11:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:11:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-12 02:11:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-12 02:11:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:11:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:11:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:11:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:11:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:11:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:11:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-12 02:11:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-12 02:11:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:11:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-12 02:11:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-12 02:11:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:11:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:11:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:11:03,645 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:11:03,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:11:05,290 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:11:05,310 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:11:05,311 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-12 02:11:05,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:11:05 BoogieIcfgContainer [2023-11-12 02:11:05,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:11:05,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:11:05,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:11:05,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:11:05,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:11:01" (1/3) ... [2023-11-12 02:11:05,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6f29b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:11:05, skipping insertion in model container [2023-11-12 02:11:05,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:11:02" (2/3) ... [2023-11-12 02:11:05,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6f29b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:11:05, skipping insertion in model container [2023-11-12 02:11:05,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:11:05" (3/3) ... [2023-11-12 02:11:05,327 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2023-11-12 02:11:05,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:11:05,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:11:05,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:11:05,448 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;@51fd742c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:11:05,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:11:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 393 states, 371 states have (on average 1.6657681940700808) internal successors, (618), 375 states have internal predecessors, (618), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-12 02:11:05,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:11:05,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:05,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:05,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:05,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:05,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1053908008, now seen corresponding path program 1 times [2023-11-12 02:11:05,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:05,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767815800] [2023-11-12 02:11:05,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:05,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:05,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:05,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767815800] [2023-11-12 02:11:05,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767815800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:05,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:05,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:11:05,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287599982] [2023-11-12 02:11:05,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:05,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:11:05,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:05,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:11:05,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:11:05,719 INFO L87 Difference]: Start difference. First operand has 393 states, 371 states have (on average 1.6657681940700808) internal successors, (618), 375 states have internal predecessors, (618), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:05,814 INFO L93 Difference]: Finished difference Result 781 states and 1296 transitions. [2023-11-12 02:11:05,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:11:05,817 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 02:11:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:05,839 INFO L225 Difference]: With dead ends: 781 [2023-11-12 02:11:05,839 INFO L226 Difference]: Without dead ends: 386 [2023-11-12 02:11:05,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:11:05,854 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:05,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:11:05,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-12 02:11:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2023-11-12 02:11:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 365 states have (on average 1.484931506849315) internal successors, (542), 370 states have internal predecessors, (542), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:11:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 567 transitions. [2023-11-12 02:11:05,958 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 567 transitions. Word has length 8 [2023-11-12 02:11:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:05,959 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 567 transitions. [2023-11-12 02:11:05,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:05,960 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 567 transitions. [2023-11-12 02:11:05,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:11:05,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:05,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:05,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:11:05,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:05,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -719765386, now seen corresponding path program 1 times [2023-11-12 02:11:05,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:05,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705020004] [2023-11-12 02:11:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:05,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:06,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:06,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705020004] [2023-11-12 02:11:06,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705020004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:06,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:06,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:11:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576202826] [2023-11-12 02:11:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:06,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:11:06,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:06,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:11:06,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:11:06,220 INFO L87 Difference]: Start difference. First operand 386 states and 567 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:06,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:06,775 INFO L93 Difference]: Finished difference Result 861 states and 1284 transitions. [2023-11-12 02:11:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:11:06,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:11:06,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:06,780 INFO L225 Difference]: With dead ends: 861 [2023-11-12 02:11:06,781 INFO L226 Difference]: Without dead ends: 669 [2023-11-12 02:11:06,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:11:06,783 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 420 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:06,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1571 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:11:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2023-11-12 02:11:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 388. [2023-11-12 02:11:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 367 states have (on average 1.4822888283378746) internal successors, (544), 372 states have internal predecessors, (544), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:11:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 569 transitions. [2023-11-12 02:11:06,816 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 569 transitions. Word has length 10 [2023-11-12 02:11:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:06,816 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 569 transitions. [2023-11-12 02:11:06,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:06,817 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 569 transitions. [2023-11-12 02:11:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:11:06,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:06,820 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] [2023-11-12 02:11:06,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:11:06,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:06,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,822 INFO L85 PathProgramCache]: Analyzing trace with hash 669380872, now seen corresponding path program 1 times [2023-11-12 02:11:06,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914975690] [2023-11-12 02:11:06,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:06,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326154072] [2023-11-12 02:11:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:06,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:06,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:06,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:11:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:07,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:11:07,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:07,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:07,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:07,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914975690] [2023-11-12 02:11:07,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:07,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326154072] [2023-11-12 02:11:07,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326154072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:07,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:07,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:11:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124991101] [2023-11-12 02:11:07,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:07,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:11:07,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:07,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:11:07,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:11:07,201 INFO L87 Difference]: Start difference. First operand 388 states and 569 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:07,293 INFO L93 Difference]: Finished difference Result 793 states and 1165 transitions. [2023-11-12 02:11:07,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:11:07,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-12 02:11:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:07,297 INFO L225 Difference]: With dead ends: 793 [2023-11-12 02:11:07,297 INFO L226 Difference]: Without dead ends: 409 [2023-11-12 02:11:07,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:11:07,300 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 9 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:07,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1079 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:11:07,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-12 02:11:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 408. [2023-11-12 02:11:07,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 387 states have (on average 1.4573643410852712) internal successors, (564), 392 states have internal predecessors, (564), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:11:07,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 589 transitions. [2023-11-12 02:11:07,316 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 589 transitions. Word has length 66 [2023-11-12 02:11:07,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:07,316 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 589 transitions. [2023-11-12 02:11:07,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 589 transitions. [2023-11-12 02:11:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:11:07,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:07,320 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] [2023-11-12 02:11:07,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:07,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:07,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:07,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:07,534 INFO L85 PathProgramCache]: Analyzing trace with hash 421234378, now seen corresponding path program 1 times [2023-11-12 02:11:07,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:07,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253745439] [2023-11-12 02:11:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:07,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:07,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:07,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806611003] [2023-11-12 02:11:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:07,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:07,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:11:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:07,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:11:07,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:07,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:07,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:07,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253745439] [2023-11-12 02:11:07,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:07,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806611003] [2023-11-12 02:11:07,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806611003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:07,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:07,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:11:07,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617023931] [2023-11-12 02:11:07,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:07,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:11:07,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:11:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:11:07,932 INFO L87 Difference]: Start difference. First operand 408 states and 589 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:08,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:08,053 INFO L93 Difference]: Finished difference Result 799 states and 1161 transitions. [2023-11-12 02:11:08,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:11:08,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-12 02:11:08,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:08,057 INFO L225 Difference]: With dead ends: 799 [2023-11-12 02:11:08,058 INFO L226 Difference]: Without dead ends: 395 [2023-11-12 02:11:08,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:11:08,060 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 165 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:08,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1466 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:11:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-12 02:11:08,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 394. [2023-11-12 02:11:08,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 373 states have (on average 1.4557640750670242) internal successors, (543), 378 states have internal predecessors, (543), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:11:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 568 transitions. [2023-11-12 02:11:08,079 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 568 transitions. Word has length 66 [2023-11-12 02:11:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:08,080 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 568 transitions. [2023-11-12 02:11:08,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 568 transitions. [2023-11-12 02:11:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:11:08,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:08,082 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] [2023-11-12 02:11:08,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:08,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:08,290 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:08,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:08,290 INFO L85 PathProgramCache]: Analyzing trace with hash 125739260, now seen corresponding path program 1 times [2023-11-12 02:11:08,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:08,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972723034] [2023-11-12 02:11:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:08,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:08,346 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:08,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618984711] [2023-11-12 02:11:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:08,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:08,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:08,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:08,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:11:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:08,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:11:08,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:08,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:08,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:08,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972723034] [2023-11-12 02:11:08,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:08,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618984711] [2023-11-12 02:11:08,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618984711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:08,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:08,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:11:08,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324723074] [2023-11-12 02:11:08,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:08,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:11:08,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:08,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:11:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:11:08,793 INFO L87 Difference]: Start difference. First operand 394 states and 568 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:09,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:09,213 INFO L93 Difference]: Finished difference Result 833 states and 1198 transitions. [2023-11-12 02:11:09,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:11:09,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-12 02:11:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:09,217 INFO L225 Difference]: With dead ends: 833 [2023-11-12 02:11:09,217 INFO L226 Difference]: Without dead ends: 443 [2023-11-12 02:11:09,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:11:09,220 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 27 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:09,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1996 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:11:09,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-12 02:11:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 434. [2023-11-12 02:11:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 413 states have (on average 1.430992736077482) internal successors, (591), 418 states have internal predecessors, (591), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:11:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 616 transitions. [2023-11-12 02:11:09,238 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 616 transitions. Word has length 66 [2023-11-12 02:11:09,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:09,239 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 616 transitions. [2023-11-12 02:11:09,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 616 transitions. [2023-11-12 02:11:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 02:11:09,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:09,241 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] [2023-11-12 02:11:09,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:09,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:09,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:09,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:09,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2132253304, now seen corresponding path program 1 times [2023-11-12 02:11:09,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:09,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441837943] [2023-11-12 02:11:09,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:09,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:09,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:09,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853415933] [2023-11-12 02:11:09,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:09,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:09,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:09,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:09,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:11:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:10,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:11:10,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:10,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:10,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:10,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441837943] [2023-11-12 02:11:10,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:10,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853415933] [2023-11-12 02:11:10,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853415933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:10,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:10,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:11:10,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398177519] [2023-11-12 02:11:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:10,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:11:10,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:11:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:11:10,174 INFO L87 Difference]: Start difference. First operand 434 states and 616 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:10,841 INFO L93 Difference]: Finished difference Result 882 states and 1256 transitions. [2023-11-12 02:11:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:11:10,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-12 02:11:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:10,846 INFO L225 Difference]: With dead ends: 882 [2023-11-12 02:11:10,846 INFO L226 Difference]: Without dead ends: 452 [2023-11-12 02:11:10,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:11:10,852 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 47 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:10,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 2788 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:11:10,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-11-12 02:11:10,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 444. [2023-11-12 02:11:10,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 423 states have (on average 1.4349881796690307) internal successors, (607), 428 states have internal predecessors, (607), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 02:11:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 632 transitions. [2023-11-12 02:11:10,873 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 632 transitions. Word has length 67 [2023-11-12 02:11:10,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:10,874 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 632 transitions. [2023-11-12 02:11:10,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 632 transitions. [2023-11-12 02:11:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 02:11:10,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:10,876 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] [2023-11-12 02:11:10,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:11,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:11,085 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:11,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:11,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1157269209, now seen corresponding path program 1 times [2023-11-12 02:11:11,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:11,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801308952] [2023-11-12 02:11:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:11,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:11,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:11,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234389048] [2023-11-12 02:11:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:11,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:11,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:11,119 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:11,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:11:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:12,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:11:12,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:12,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:12,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:12,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801308952] [2023-11-12 02:11:12,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:12,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234389048] [2023-11-12 02:11:12,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234389048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:12,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:12,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:11:12,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803182216] [2023-11-12 02:11:12,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:12,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:11:12,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:12,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:11:12,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:11:12,172 INFO L87 Difference]: Start difference. First operand 444 states and 632 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:12,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:12,737 INFO L93 Difference]: Finished difference Result 457 states and 645 transitions. [2023-11-12 02:11:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:11:12,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-12 02:11:12,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:12,742 INFO L225 Difference]: With dead ends: 457 [2023-11-12 02:11:12,742 INFO L226 Difference]: Without dead ends: 455 [2023-11-12 02:11:12,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:11:12,743 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 1027 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:12,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 2678 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:11:12,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-12 02:11:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 454. [2023-11-12 02:11:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 430 states have (on average 1.430232558139535) internal successors, (615), 436 states have internal predecessors, (615), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:11:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 642 transitions. [2023-11-12 02:11:12,796 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 642 transitions. Word has length 68 [2023-11-12 02:11:12,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:12,796 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 642 transitions. [2023-11-12 02:11:12,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 642 transitions. [2023-11-12 02:11:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-12 02:11:12,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:12,801 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:11:12,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:13,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:13,009 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:13,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1358139019, now seen corresponding path program 1 times [2023-11-12 02:11:13,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:13,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116038103] [2023-11-12 02:11:13,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:13,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:13,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:13,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670124560] [2023-11-12 02:11:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:13,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:13,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:13,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:13,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:11:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:13,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:11:13,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:13,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:13,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:13,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116038103] [2023-11-12 02:11:13,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:13,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670124560] [2023-11-12 02:11:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670124560] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:11:13,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:11:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2023-11-12 02:11:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095043511] [2023-11-12 02:11:13,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:13,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:11:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:13,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:11:13,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:11:13,726 INFO L87 Difference]: Start difference. First operand 454 states and 642 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:11:13,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:13,970 INFO L93 Difference]: Finished difference Result 1911 states and 2739 transitions. [2023-11-12 02:11:13,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:11:13,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2023-11-12 02:11:13,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:13,983 INFO L225 Difference]: With dead ends: 1911 [2023-11-12 02:11:13,983 INFO L226 Difference]: Without dead ends: 1461 [2023-11-12 02:11:13,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:11:13,985 INFO L413 NwaCegarLoop]: 1511 mSDtfsCounter, 2228 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:13,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 3048 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:11:13,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-11-12 02:11:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1244. [2023-11-12 02:11:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1203 states have (on average 1.4455527847049043) internal successors, (1739), 1211 states have internal predecessors, (1739), 25 states have call successors, (25), 12 states have call predecessors, (25), 12 states have return successors, (25), 20 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-12 02:11:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1789 transitions. [2023-11-12 02:11:14,045 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1789 transitions. Word has length 83 [2023-11-12 02:11:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:14,045 INFO L495 AbstractCegarLoop]: Abstraction has 1244 states and 1789 transitions. [2023-11-12 02:11:14,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:11:14,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1789 transitions. [2023-11-12 02:11:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 02:11:14,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:14,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:14,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:14,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 02:11:14,255 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:14,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash -582271386, now seen corresponding path program 1 times [2023-11-12 02:11:14,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:14,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077994178] [2023-11-12 02:11:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:14,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:14,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:14,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724765796] [2023-11-12 02:11:14,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:14,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:14,327 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:14,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:11:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:14,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:11:14,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:14,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:14,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077994178] [2023-11-12 02:11:14,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724765796] [2023-11-12 02:11:14,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724765796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:14,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:14,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:11:14,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635903653] [2023-11-12 02:11:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:14,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:11:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:14,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:11:14,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:11:14,657 INFO L87 Difference]: Start difference. First operand 1244 states and 1789 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:14,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:14,717 INFO L93 Difference]: Finished difference Result 2487 states and 3580 transitions. [2023-11-12 02:11:14,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:11:14,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-12 02:11:14,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:14,726 INFO L225 Difference]: With dead ends: 2487 [2023-11-12 02:11:14,727 INFO L226 Difference]: Without dead ends: 1247 [2023-11-12 02:11:14,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:11:14,730 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 0 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:14,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:11:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2023-11-12 02:11:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1247. [2023-11-12 02:11:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1206 states have (on average 1.4444444444444444) internal successors, (1742), 1214 states have internal predecessors, (1742), 25 states have call successors, (25), 12 states have call predecessors, (25), 12 states have return successors, (25), 20 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-12 02:11:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1792 transitions. [2023-11-12 02:11:14,784 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1792 transitions. Word has length 81 [2023-11-12 02:11:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:14,784 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1792 transitions. [2023-11-12 02:11:14,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1792 transitions. [2023-11-12 02:11:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 02:11:14,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:14,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:14,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:14,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-12 02:11:14,994 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:14,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash -189244376, now seen corresponding path program 1 times [2023-11-12 02:11:14,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:14,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071920734] [2023-11-12 02:11:14,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:14,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:15,044 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:15,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831044545] [2023-11-12 02:11:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:15,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:15,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:11:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:15,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:11:15,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:15,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:15,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071920734] [2023-11-12 02:11:15,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:15,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831044545] [2023-11-12 02:11:15,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831044545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:15,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:15,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:11:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425868677] [2023-11-12 02:11:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:15,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:11:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:11:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:11:15,682 INFO L87 Difference]: Start difference. First operand 1247 states and 1792 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:15,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:15,857 INFO L93 Difference]: Finished difference Result 2876 states and 4189 transitions. [2023-11-12 02:11:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:11:15,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-12 02:11:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:15,869 INFO L225 Difference]: With dead ends: 2876 [2023-11-12 02:11:15,870 INFO L226 Difference]: Without dead ends: 1633 [2023-11-12 02:11:15,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:11:15,875 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 347 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:15,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1261 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:11:15,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2023-11-12 02:11:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1284. [2023-11-12 02:11:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1255 states have (on average 1.4637450199203188) internal successors, (1837), 1261 states have internal predecessors, (1837), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-12 02:11:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1869 transitions. [2023-11-12 02:11:15,939 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1869 transitions. Word has length 81 [2023-11-12 02:11:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:15,939 INFO L495 AbstractCegarLoop]: Abstraction has 1284 states and 1869 transitions. [2023-11-12 02:11:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1869 transitions. [2023-11-12 02:11:15,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 02:11:15,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:15,941 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:15,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:16,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:11:16,148 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:16,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:16,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1992988458, now seen corresponding path program 1 times [2023-11-12 02:11:16,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:16,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553970390] [2023-11-12 02:11:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:16,208 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:16,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504194245] [2023-11-12 02:11:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:16,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:16,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:16,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:16,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:11:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:16,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:11:16,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:16,657 INFO L351 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 [2023-11-12 02:11:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:11:16,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:16,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:16,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553970390] [2023-11-12 02:11:16,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:16,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504194245] [2023-11-12 02:11:16,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504194245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:16,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:16,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:11:16,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705029886] [2023-11-12 02:11:16,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:16,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:11:16,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:11:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:11:16,676 INFO L87 Difference]: Start difference. First operand 1284 states and 1869 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:11:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:17,117 INFO L93 Difference]: Finished difference Result 1633 states and 2399 transitions. [2023-11-12 02:11:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:11:17,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 119 [2023-11-12 02:11:17,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:17,128 INFO L225 Difference]: With dead ends: 1633 [2023-11-12 02:11:17,128 INFO L226 Difference]: Without dead ends: 1620 [2023-11-12 02:11:17,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:11:17,130 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 408 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:17,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1559 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:11:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-11-12 02:11:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1288. [2023-11-12 02:11:17,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1259 states have (on average 1.4622716441620334) internal successors, (1841), 1265 states have internal predecessors, (1841), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-12 02:11:17,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1873 transitions. [2023-11-12 02:11:17,209 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1873 transitions. Word has length 119 [2023-11-12 02:11:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:17,210 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1873 transitions. [2023-11-12 02:11:17,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:11:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1873 transitions. [2023-11-12 02:11:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-12 02:11:17,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:17,214 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:17,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:17,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:11:17,421 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:17,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1547361620, now seen corresponding path program 1 times [2023-11-12 02:11:17,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:17,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034420429] [2023-11-12 02:11:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:17,488 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:17,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674801001] [2023-11-12 02:11:17,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:17,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:17,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,489 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:11:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:17,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:11:17,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 02:11:18,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:18,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:18,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034420429] [2023-11-12 02:11:18,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:18,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674801001] [2023-11-12 02:11:18,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674801001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:18,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:11:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538252971] [2023-11-12 02:11:18,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:18,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:11:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:18,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:11:18,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:11:18,124 INFO L87 Difference]: Start difference. First operand 1288 states and 1873 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:11:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:18,307 INFO L93 Difference]: Finished difference Result 2385 states and 3479 transitions. [2023-11-12 02:11:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:11:18,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 130 [2023-11-12 02:11:18,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:18,317 INFO L225 Difference]: With dead ends: 2385 [2023-11-12 02:11:18,317 INFO L226 Difference]: Without dead ends: 1288 [2023-11-12 02:11:18,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:11:18,320 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 128 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:18,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 2124 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:11:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-11-12 02:11:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1288. [2023-11-12 02:11:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1259 states have (on average 1.4622716441620334) internal successors, (1841), 1265 states have internal predecessors, (1841), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:11:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1872 transitions. [2023-11-12 02:11:18,412 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1872 transitions. Word has length 130 [2023-11-12 02:11:18,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:18,413 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1872 transitions. [2023-11-12 02:11:18,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:11:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1872 transitions. [2023-11-12 02:11:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-12 02:11:18,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:18,418 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:18,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:18,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:11:18,626 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:18,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:18,627 INFO L85 PathProgramCache]: Analyzing trace with hash -644976245, now seen corresponding path program 1 times [2023-11-12 02:11:18,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:18,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576698185] [2023-11-12 02:11:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:18,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:18,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:18,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637775994] [2023-11-12 02:11:18,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:18,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:18,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:18,705 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:18,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:11:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:19,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 02:11:19,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:19,459 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 02:11:19,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:19,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:19,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576698185] [2023-11-12 02:11:19,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:19,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637775994] [2023-11-12 02:11:19,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637775994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:19,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:19,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:11:19,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647508269] [2023-11-12 02:11:19,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:19,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:11:19,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:19,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:11:19,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:11:19,463 INFO L87 Difference]: Start difference. First operand 1288 states and 1872 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:11:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:19,654 INFO L93 Difference]: Finished difference Result 2393 states and 3490 transitions. [2023-11-12 02:11:19,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:11:19,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 135 [2023-11-12 02:11:19,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:19,662 INFO L225 Difference]: With dead ends: 2393 [2023-11-12 02:11:19,662 INFO L226 Difference]: Without dead ends: 1293 [2023-11-12 02:11:19,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:11:19,665 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 16 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:19,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3793 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:11:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-11-12 02:11:19,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1293. [2023-11-12 02:11:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1263 states have (on average 1.46159936658749) internal successors, (1846), 1270 states have internal predecessors, (1846), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-12 02:11:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1878 transitions. [2023-11-12 02:11:19,727 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1878 transitions. Word has length 135 [2023-11-12 02:11:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:19,727 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1878 transitions. [2023-11-12 02:11:19,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:11:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1878 transitions. [2023-11-12 02:11:19,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-12 02:11:19,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:19,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:19,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:19,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 02:11:19,941 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:19,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:19,941 INFO L85 PathProgramCache]: Analyzing trace with hash -324838863, now seen corresponding path program 1 times [2023-11-12 02:11:19,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:19,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6209862] [2023-11-12 02:11:19,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:19,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:20,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:20,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735915357] [2023-11-12 02:11:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:20,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:20,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:20,021 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:20,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-12 02:11:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:20,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 193 conjunts are in the unsatisfiable core [2023-11-12 02:11:20,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:20,752 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-12 02:11:20,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-11-12 02:11:20,761 INFO L351 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 [2023-11-12 02:11:20,846 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-12 02:11:20,846 INFO L351 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 21 treesize of output 25 [2023-11-12 02:11:20,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:11:21,001 INFO L351 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 26 treesize of output 18 [2023-11-12 02:11:23,591 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:11:23,591 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 105 [2023-11-12 02:11:24,139 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-12 02:11:24,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:24,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:24,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6209862] [2023-11-12 02:11:24,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:24,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735915357] [2023-11-12 02:11:24,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735915357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:24,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:24,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-12 02:11:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576010806] [2023-11-12 02:11:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:24,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:11:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:24,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:11:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:11:24,143 INFO L87 Difference]: Start difference. First operand 1293 states and 1878 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:11:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:29,019 INFO L93 Difference]: Finished difference Result 2925 states and 4241 transitions. [2023-11-12 02:11:29,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:11:29,020 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 137 [2023-11-12 02:11:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:29,031 INFO L225 Difference]: With dead ends: 2925 [2023-11-12 02:11:29,031 INFO L226 Difference]: Without dead ends: 1759 [2023-11-12 02:11:29,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2023-11-12 02:11:29,036 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1545 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:29,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 3846 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-12 02:11:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2023-11-12 02:11:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1300. [2023-11-12 02:11:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1270 states have (on average 1.4590551181102362) internal successors, (1853), 1277 states have internal predecessors, (1853), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-12 02:11:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1885 transitions. [2023-11-12 02:11:29,106 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1885 transitions. Word has length 137 [2023-11-12 02:11:29,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:29,106 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 1885 transitions. [2023-11-12 02:11:29,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:11:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1885 transitions. [2023-11-12 02:11:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-12 02:11:29,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:29,109 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:29,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:29,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:11:29,319 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:29,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:29,319 INFO L85 PathProgramCache]: Analyzing trace with hash 58565973, now seen corresponding path program 1 times [2023-11-12 02:11:29,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:29,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299428500] [2023-11-12 02:11:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:29,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:29,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:29,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676735092] [2023-11-12 02:11:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:29,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:29,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:29,380 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:29,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 02:11:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:30,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 162 conjunts are in the unsatisfiable core [2023-11-12 02:11:30,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:30,158 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-12 02:11:30,158 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-11-12 02:11:30,171 INFO L351 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 [2023-11-12 02:11:30,238 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-12 02:11:30,239 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2023-11-12 02:11:30,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:11:30,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-12 02:11:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:11:30,434 INFO L351 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 02:11:31,757 INFO L322 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2023-11-12 02:11:31,758 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 45 [2023-11-12 02:11:31,857 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:11:32,073 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-12 02:11:32,674 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:11:32,674 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 49 [2023-11-12 02:11:32,879 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:32,879 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1694 treesize of output 1434 [2023-11-12 02:11:32,939 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:32,939 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1641 treesize of output 1385 [2023-11-12 02:11:32,980 INFO L322 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2023-11-12 02:11:32,981 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1207 treesize of output 893 [2023-11-12 02:11:33,003 INFO L351 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 35 treesize of output 22 [2023-11-12 02:11:33,012 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2023-11-12 02:11:33,023 INFO L351 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 [2023-11-12 02:11:33,094 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,095 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2913 treesize of output 2396 [2023-11-12 02:11:33,147 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,149 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3072 treesize of output 2527 [2023-11-12 02:11:33,187 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:33,188 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1512 treesize of output 1265 [2023-11-12 02:11:33,234 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:33,235 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1432 treesize of output 1224 [2023-11-12 02:11:33,271 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:33,272 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1485 treesize of output 1273 [2023-11-12 02:11:33,297 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:33,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1029 treesize of output 1 [2023-11-12 02:11:33,348 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:33,349 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1694 treesize of output 1434 [2023-11-12 02:11:33,383 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:33,384 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1641 treesize of output 1385 [2023-11-12 02:11:33,411 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:33,412 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1207 treesize of output 1 [2023-11-12 02:11:33,437 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:33,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1138 treesize of output 1 [2023-11-12 02:11:33,466 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:33,467 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1625 treesize of output 1375 [2023-11-12 02:11:33,498 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:33,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1572 treesize of output 1326 [2023-11-12 02:11:33,553 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,554 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3225 treesize of output 2630 [2023-11-12 02:11:33,600 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,601 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3384 treesize of output 2761 [2023-11-12 02:11:33,631 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:33,632 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1662 treesize of output 1390 [2023-11-12 02:11:33,675 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:33,676 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1787 treesize of output 1491 [2023-11-12 02:11:33,717 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,717 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3406 treesize of output 2771 [2023-11-12 02:11:33,765 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,766 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3552 treesize of output 2893 [2023-11-12 02:11:33,873 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:33,873 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1581 treesize of output 1323 [2023-11-12 02:11:33,924 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,925 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3303 treesize of output 2694 [2023-11-12 02:11:33,963 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:33,964 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3144 treesize of output 2563 [2023-11-12 02:11:33,997 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:33,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1134 treesize of output 1 [2023-11-12 02:11:34,031 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,032 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1621 treesize of output 1373 [2023-11-12 02:11:34,064 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,065 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1568 treesize of output 1324 [2023-11-12 02:11:34,104 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,105 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1499 treesize of output 1265 [2023-11-12 02:11:34,141 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,142 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1552 treesize of output 1314 [2023-11-12 02:11:34,170 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:34,171 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1065 treesize of output 1 [2023-11-12 02:11:34,208 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,209 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1412 treesize of output 1212 [2023-11-12 02:11:34,241 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,242 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1359 treesize of output 1163 [2023-11-12 02:11:34,267 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:34,267 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 956 treesize of output 1 [2023-11-12 02:11:34,292 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:34,293 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1134 treesize of output 1 [2023-11-12 02:11:34,323 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,324 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1621 treesize of output 1373 [2023-11-12 02:11:34,351 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,352 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1568 treesize of output 1324 [2023-11-12 02:11:34,387 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:34,388 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1431 treesize of output 1198 [2023-11-12 02:11:34,435 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:34,436 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2991 treesize of output 2460 [2023-11-12 02:11:34,473 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:34,474 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2832 treesize of output 2329 [2023-11-12 02:11:34,525 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:34,526 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3471 treesize of output 2826 [2023-11-12 02:11:34,601 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:34,601 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1706 treesize of output 1424 [2023-11-12 02:11:34,650 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:34,651 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3325 treesize of output 2704 [2023-11-12 02:11:34,698 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:34,699 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1138 treesize of output 1 [2023-11-12 02:11:34,734 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,735 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1572 treesize of output 1326 [2023-11-12 02:11:34,772 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,773 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1625 treesize of output 1375 [2023-11-12 02:11:34,807 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:34,807 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1316 treesize of output 1 [2023-11-12 02:11:34,847 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,848 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1834 treesize of output 1536 [2023-11-12 02:11:34,882 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:34,883 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1781 treesize of output 1487 [2023-11-12 02:11:34,949 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:34,950 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3384 treesize of output 2761 [2023-11-12 02:11:34,986 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:34,987 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3225 treesize of output 2630 [2023-11-12 02:11:35,020 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:35,021 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1660 treesize of output 1369 [2023-11-12 02:11:35,061 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:35,062 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1797 treesize of output 1483 [2023-11-12 02:11:35,107 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,108 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3696 treesize of output 2995 [2023-11-12 02:11:35,147 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,148 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3537 treesize of output 2864 [2023-11-12 02:11:35,181 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:35,182 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1316 treesize of output 1 [2023-11-12 02:11:35,211 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:35,212 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1834 treesize of output 1536 [2023-11-12 02:11:35,240 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:35,241 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1781 treesize of output 1487 [2023-11-12 02:11:35,274 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:35,274 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1247 treesize of output 1 [2023-11-12 02:11:35,303 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:35,304 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1712 treesize of output 1428 [2023-11-12 02:11:35,337 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:35,338 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1765 treesize of output 1477 [2023-11-12 02:11:35,396 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,397 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3864 treesize of output 3127 [2023-11-12 02:11:35,444 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,445 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3718 treesize of output 3005 [2023-11-12 02:11:35,484 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:35,485 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1922 treesize of output 1584 [2023-11-12 02:11:35,599 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:35,599 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1817 treesize of output 1501 [2023-11-12 02:11:35,649 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,650 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3442 treesize of output 2787 [2023-11-12 02:11:35,704 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,705 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3588 treesize of output 2909 [2023-11-12 02:11:35,759 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:35,760 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1897 treesize of output 1581 [2023-11-12 02:11:35,803 INFO L322 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-12 02:11:35,804 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2227 treesize of output 1893 [2023-11-12 02:11:35,832 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:35,833 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1378 treesize of output 1007 [2023-11-12 02:11:35,884 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,885 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3375 treesize of output 2818 [2023-11-12 02:11:35,944 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:35,945 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3732 treesize of output 3013 [2023-11-12 02:11:35,985 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:35,986 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1936 treesize of output 1592 [2023-11-12 02:11:36,031 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:36,032 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1966 treesize of output 1640 [2023-11-12 02:11:36,066 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:36,067 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1447 treesize of output 1066 [2023-11-12 02:11:36,103 INFO L322 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-12 02:11:36,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2296 treesize of output 1952 [2023-11-12 02:11:36,166 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:36,167 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3148 treesize of output 2653 [2023-11-12 02:11:36,222 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:11:36,223 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3420 treesize of output 2779 [2023-11-12 02:11:36,262 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:11:36,263 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1801 treesize of output 1499 [2023-11-12 02:11:36,307 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:36,308 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1757 treesize of output 1479 [2023-11-12 02:11:36,368 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:36,369 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1269 treesize of output 932 [2023-11-12 02:11:36,402 INFO L322 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-12 02:11:36,402 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2040 treesize of output 1756 [2023-11-12 02:11:36,447 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:11:36,448 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1966 treesize of output 1640 [2023-11-12 02:11:36,478 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:11:36,479 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1447 treesize of output 1066 [2023-11-12 02:11:36,516 INFO L322 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-12 02:11:36,517 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2296 treesize of output 1952 [2023-11-12 02:11:36,807 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2023-11-12 02:11:36,848 INFO L322 Elim1Store]: treesize reduction 8, result has 80.5 percent of original size [2023-11-12 02:11:36,848 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 58 [2023-11-12 02:11:36,885 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:11:37,043 INFO L322 Elim1Store]: treesize reduction 334, result has 7.5 percent of original size [2023-11-12 02:11:37,043 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 550 treesize of output 363 [2023-11-12 02:11:37,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:11:37,059 INFO L351 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 201 treesize of output 168 [2023-11-12 02:11:37,073 INFO L351 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 120 treesize of output 55 [2023-11-12 02:11:37,077 INFO L351 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 [2023-11-12 02:11:37,082 INFO L351 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 [2023-11-12 02:11:37,103 INFO L322 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-12 02:11:37,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 364 treesize of output 262 [2023-11-12 02:11:37,120 INFO L322 Elim1Store]: treesize reduction 37, result has 2.6 percent of original size [2023-11-12 02:11:37,120 INFO L351 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 136 [2023-11-12 02:11:37,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:11:37,521 INFO L322 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2023-11-12 02:11:37,522 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 168 treesize of output 87 [2023-11-12 02:11:37,555 INFO L322 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2023-11-12 02:11:37,555 INFO L351 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 5 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 111 [2023-11-12 02:11:37,974 INFO L322 Elim1Store]: treesize reduction 194, result has 11.8 percent of original size [2023-11-12 02:11:37,975 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 214 treesize of output 139 [2023-11-12 02:11:38,011 INFO L322 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2023-11-12 02:11:38,012 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 167 treesize of output 140 [2023-11-12 02:11:38,475 INFO L322 Elim1Store]: treesize reduction 94, result has 5.1 percent of original size [2023-11-12 02:11:38,476 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 367 treesize of output 241 [2023-11-12 02:11:38,488 INFO L322 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-12 02:11:38,489 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 241 treesize of output 186 [2023-11-12 02:11:38,531 INFO L322 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2023-11-12 02:11:38,531 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 192 treesize of output 120 [2023-11-12 02:11:38,558 INFO L322 Elim1Store]: treesize reduction 35, result has 12.5 percent of original size [2023-11-12 02:11:38,558 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 119 [2023-11-12 02:11:38,569 INFO L351 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 74 treesize of output 29 [2023-11-12 02:11:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:38,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:38,718 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse12 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12)) (.cse11 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12))) (let ((.cse0 (mod |c_ULTIMATE.start_main_~_ha_bkt~0#1| 4294967296)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse10) .cse11))) (let ((.cse2 (select |c_#memory_$Pointer$.offset| .cse1)) (.cse5 (select |c_#memory_$Pointer$.base| .cse1)) (.cse6 (* .cse0 12)) (.cse7 (select (select |c_#memory_$Pointer$.offset| .cse10) .cse11))) (and (or (< 2147483647 .cse0) (let ((.cse3 (+ .cse6 .cse7 4)) (.cse4 (+ .cse6 .cse7))) (and (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 (store .cse2 .cse3 v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse1) .cse4) 0)) (forall ((v_ArrVal_2963 (Array Int Int))) (or (not (= (store .cse5 .cse3 (select v_ArrVal_2963 .cse3)) v_ArrVal_2963)) (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse1) .cse4) 0))))))) (or (let ((.cse9 (+ (- 51539607552) .cse6 .cse7)) (.cse8 (+ .cse6 .cse7 (- 51539607548)))) (and (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 (store .cse2 .cse8 v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse1) .cse9) 0)) (forall ((v_ArrVal_2963 (Array Int Int))) (or (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse1) .cse9) 0)) (not (= v_ArrVal_2963 (store .cse5 .cse8 (select v_ArrVal_2963 .cse8)))))))) (< .cse0 2147483648))))))) is different from false [2023-11-12 02:11:38,814 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse12 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12)) (.cse11 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12))) (let ((.cse0 (mod |c_ULTIMATE.start_main_#t~nondet117#1| 4294967296)) (.cse3 (select (select |c_#memory_$Pointer$.base| .cse10) .cse11))) (let ((.cse5 (select |c_#memory_$Pointer$.offset| .cse3)) (.cse1 (select |c_#memory_$Pointer$.base| .cse3)) (.cse6 (select (select |c_#memory_$Pointer$.offset| .cse10) .cse11)) (.cse7 (* .cse0 12))) (and (or (< .cse0 2147483648) (let ((.cse2 (+ .cse6 (- 51539607548) .cse7)) (.cse4 (+ (- 51539607552) .cse6 .cse7))) (and (forall ((v_ArrVal_2963 (Array Int Int))) (or (not (= v_ArrVal_2963 (store .cse1 .cse2 (select v_ArrVal_2963 .cse2)))) (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse3) .cse4) 0)))) (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 (store .cse5 .cse2 v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse3) .cse4) 0))))) (or (let ((.cse9 (+ .cse6 .cse7)) (.cse8 (+ .cse6 4 .cse7))) (and (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= 0 (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 (store .cse5 .cse8 v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse3) .cse9))) (forall ((v_ArrVal_2963 (Array Int Int))) (or (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse3) .cse9) 0)) (not (= v_ArrVal_2963 (store .cse1 .cse8 (select v_ArrVal_2963 .cse8)))))))) (< 2147483647 .cse0))))))) is different from false [2023-11-12 02:11:38,836 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse5)) (.cse4 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse5))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| .cse3) .cse4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| .cse3) .cse4)) (.cse1 (+ .cse2 4))) (and (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse0) .cse2) 0)) (forall ((v_ArrVal_2963 (Array Int Int))) (or (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse0) .cse2) 0)) (not (= v_ArrVal_2963 (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 (select v_ArrVal_2963 .cse1))))))))))) is different from false [2023-11-12 02:11:38,929 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse11 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse10))) (let ((.cse0 (select |c_#memory_$Pointer$.offset| .cse11)) (.cse2 (select |c_#memory_$Pointer$.base| .cse11)) (.cse1 (+ 12 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse10)))) (and (forall ((v_ArrVal_2958 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2958 .cse1)) v_ArrVal_2958)) (forall ((v_ArrVal_2959 (Array Int Int))) (or (not (= (store .cse2 .cse1 (select v_ArrVal_2959 .cse1)) v_ArrVal_2959)) (forall ((v_ArrVal_2963 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| .cse11 v_ArrVal_2958)) (.cse3 (store |c_#memory_$Pointer$.base| .cse11 v_ArrVal_2959))) (let ((.cse8 (select (select .cse3 |c_ULTIMATE.start_main_~users~0#1.base|) .cse10)) (.cse9 (select (select .cse7 |c_ULTIMATE.start_main_~users~0#1.base|) .cse10))) (let ((.cse4 (select (select .cse3 .cse8) .cse9)) (.cse5 (select (select .cse7 .cse8) .cse9))) (or (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store .cse3 .cse4 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse4) .cse5) 0)) (not (= v_ArrVal_2963 (let ((.cse6 (+ .cse5 4))) (store (select .cse3 .cse4) .cse6 (select v_ArrVal_2963 .cse6)))))))))))))) (forall ((v_ArrVal_2958 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2958 .cse1)) v_ArrVal_2958)) (forall ((v_ArrVal_2959 (Array Int Int))) (or (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (let ((.cse12 (store |c_#memory_$Pointer$.offset| .cse11 v_ArrVal_2958)) (.cse15 (store |c_#memory_$Pointer$.base| .cse11 v_ArrVal_2959))) (let ((.cse16 (select (select .cse15 |c_ULTIMATE.start_main_~users~0#1.base|) .cse10)) (.cse17 (select (select .cse12 |c_ULTIMATE.start_main_~users~0#1.base|) .cse10))) (let ((.cse14 (select (select .cse12 .cse16) .cse17))) (select (let ((.cse13 (select (select .cse15 .cse16) .cse17))) (select (store (store .cse12 .cse13 (store (select .cse12 .cse13) (+ .cse14 4) v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse13)) .cse14)))) 0)) (not (= (store .cse2 .cse1 (select v_ArrVal_2959 .cse1)) v_ArrVal_2959)))))))))) is different from false [2023-11-12 02:11:39,024 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse8 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse9 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse8))) (let ((.cse10 (select |c_#memory_$Pointer$.base| .cse9)) (.cse0 (select |c_#memory_$Pointer$.offset| .cse9)) (.cse1 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse8) 12))) (and (forall ((v_ArrVal_2958 (Array Int Int))) (or (not (= v_ArrVal_2958 (store .cse0 .cse1 (select v_ArrVal_2958 .cse1)))) (forall ((v_ArrVal_2959 (Array Int Int))) (or (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (let ((.cse2 (store |c_#memory_$Pointer$.offset| .cse9 v_ArrVal_2958)) (.cse5 (store |c_#memory_$Pointer$.base| .cse9 v_ArrVal_2959))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse8)) (.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse8))) (let ((.cse4 (select (select .cse2 .cse6) .cse7))) (select (let ((.cse3 (select (select .cse5 .cse6) .cse7))) (select (store (store .cse2 .cse3 (store (select .cse2 .cse3) (+ .cse4 4) v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse3)) .cse4)))) 0)) (not (= v_ArrVal_2959 (store .cse10 .cse1 (select v_ArrVal_2959 .cse1)))))))) (forall ((v_ArrVal_2958 (Array Int Int))) (or (forall ((v_ArrVal_2959 (Array Int Int))) (or (forall ((v_ArrVal_2963 (Array Int Int))) (let ((.cse15 (store |c_#memory_$Pointer$.offset| .cse9 v_ArrVal_2958)) (.cse11 (store |c_#memory_$Pointer$.base| .cse9 v_ArrVal_2959))) (let ((.cse16 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse8)) (.cse17 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse8))) (let ((.cse12 (select (select .cse11 .cse16) .cse17)) (.cse13 (select (select .cse15 .cse16) .cse17))) (or (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store .cse11 .cse12 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse12) .cse13) 0)) (not (= v_ArrVal_2963 (let ((.cse14 (+ .cse13 4))) (store (select .cse11 .cse12) .cse14 (select v_ArrVal_2963 .cse14)))))))))) (not (= v_ArrVal_2959 (store .cse10 .cse1 (select v_ArrVal_2959 .cse1)))))) (not (= v_ArrVal_2958 (store .cse0 .cse1 (select v_ArrVal_2958 .cse1)))))))))) is different from false [2023-11-12 02:11:39,304 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem103#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem103#1.base|) |c_ULTIMATE.start_main_#t~mem103#1.offset| 0))) (.cse9 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem103#1.base|) |c_ULTIMATE.start_main_#t~mem103#1.offset| 0))) (.cse11 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse9))) (let ((.cse0 (select .cse10 .cse11)) (.cse13 (select .cse12 .cse11)) (.cse1 (+ (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse9) 12))) (and (forall ((v_ArrVal_2958 (Array Int Int))) (or (forall ((v_ArrVal_2959 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2959 .cse1)) v_ArrVal_2959)) (forall ((v_ArrVal_2963 (Array Int Int))) (let ((.cse6 (store .cse12 .cse11 v_ArrVal_2958)) (.cse2 (store .cse10 .cse11 v_ArrVal_2959))) (let ((.cse7 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse9)) (.cse8 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse9))) (let ((.cse3 (select (select .cse2 .cse7) .cse8)) (.cse5 (select (select .cse6 .cse7) .cse8))) (or (not (= v_ArrVal_2963 (let ((.cse4 (+ .cse5 4))) (store (select .cse2 .cse3) .cse4 (select v_ArrVal_2963 .cse4))))) (forall ((v_ArrVal_2960 (Array Int Int))) (= (select (select (store (store .cse2 .cse3 v_ArrVal_2963) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2960) .cse3) .cse5) 0))))))))) (not (= (store .cse13 .cse1 (select v_ArrVal_2958 .cse1)) v_ArrVal_2958)))) (forall ((v_ArrVal_2958 (Array Int Int))) (or (forall ((v_ArrVal_2959 (Array Int Int))) (or (forall ((v_ArrVal_2964 (Array Int Int)) (v_ArrVal_2961 Int)) (= (let ((.cse14 (store .cse12 .cse11 v_ArrVal_2958)) (.cse17 (store .cse10 .cse11 v_ArrVal_2959))) (let ((.cse18 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) .cse9)) (.cse19 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse9))) (let ((.cse16 (select (select .cse14 .cse18) .cse19))) (select (let ((.cse15 (select (select .cse17 .cse18) .cse19))) (select (store (store .cse14 .cse15 (store (select .cse14 .cse15) (+ .cse16 4) v_ArrVal_2961)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2964) .cse15)) .cse16)))) 0)) (not (= (store .cse0 .cse1 (select v_ArrVal_2959 .cse1)) v_ArrVal_2959)))) (not (= (store .cse13 .cse1 (select v_ArrVal_2958 .cse1)) v_ArrVal_2958)))))))) is different from false [2023-11-12 02:11:39,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:39,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299428500] [2023-11-12 02:11:39,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:39,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676735092] [2023-11-12 02:11:39,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676735092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:11:39,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:11:39,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2023-11-12 02:11:39,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841694839] [2023-11-12 02:11:39,313 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:39,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-12 02:11:39,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:39,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-12 02:11:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=841, Unknown=6, NotChecked=378, Total=1332 [2023-11-12 02:11:39,316 INFO L87 Difference]: Start difference. First operand 1300 states and 1885 transitions. Second operand has 31 states, 28 states have (on average 4.357142857142857) internal successors, (122), 25 states have internal predecessors, (122), 6 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-12 02:11:46,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:46,483 INFO L93 Difference]: Finished difference Result 3152 states and 4575 transitions. [2023-11-12 02:11:46,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-12 02:11:46,484 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 4.357142857142857) internal successors, (122), 25 states have internal predecessors, (122), 6 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 137 [2023-11-12 02:11:46,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:11:46,498 INFO L225 Difference]: With dead ends: 3152 [2023-11-12 02:11:46,498 INFO L226 Difference]: Without dead ends: 2048 [2023-11-12 02:11:46,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=402, Invalid=3276, Unknown=6, NotChecked=738, Total=4422 [2023-11-12 02:11:46,504 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 3482 mSDsluCounter, 9503 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 10016 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:11:46,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 10016 Invalid, 2816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-12 02:11:46,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2023-11-12 02:11:46,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1557. [2023-11-12 02:11:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1512 states have (on average 1.4424603174603174) internal successors, (2181), 1522 states have internal predecessors, (2181), 24 states have call successors, (24), 13 states have call predecessors, (24), 17 states have return successors, (30), 21 states have call predecessors, (30), 23 states have call successors, (30) [2023-11-12 02:11:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2235 transitions. [2023-11-12 02:11:46,603 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2235 transitions. Word has length 137 [2023-11-12 02:11:46,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:11:46,604 INFO L495 AbstractCegarLoop]: Abstraction has 1557 states and 2235 transitions. [2023-11-12 02:11:46,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 4.357142857142857) internal successors, (122), 25 states have internal predecessors, (122), 6 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-12 02:11:46,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2235 transitions. [2023-11-12 02:11:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-12 02:11:46,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:11:46,607 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:46,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:46,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:11:46,817 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:11:46,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:46,818 INFO L85 PathProgramCache]: Analyzing trace with hash 760165847, now seen corresponding path program 1 times [2023-11-12 02:11:46,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:46,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448493970] [2023-11-12 02:11:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:46,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:46,884 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:46,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2085974088] [2023-11-12 02:11:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:46,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:46,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:46,886 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75f5939-adc0-4a6d-a8fd-fdd775c6401f/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)