./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC --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 b4732112572a785449d8fc0d9f11ee719382a59fc14ab61bdee6adedf025d90a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:18:45,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:18:45,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:18:45,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:18:45,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:18:45,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:18:45,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:18:45,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:18:45,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:18:45,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:18:45,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:18:45,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:18:45,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:18:45,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:18:45,558 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:18:45,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:18:45,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:18:45,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:18:45,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:18:45,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:18:45,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:18:45,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:18:45,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:18:45,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:18:45,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:18:45,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:18:45,561 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:18:45,561 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:18:45,561 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:18:45,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:18:45,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:18:45,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:18:45,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:45,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:18:45,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:18:45,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:18:45,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:18:45,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:45,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:18:45,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:18:45,563 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:18:45,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:18:45,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:18:45,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:18:45,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:18:45,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:18:45,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:18:45,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:18:45,565 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC 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 -> b4732112572a785449d8fc0d9f11ee719382a59fc14ab61bdee6adedf025d90a [2024-11-24 00:18:45,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:18:45,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:18:45,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:18:45,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:18:45,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:18:45,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i [2024-11-24 00:18:49,758 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/ed099707c/af7d560525e541e68e7b7d996ff27669/FLAG926bb25ff [2024-11-24 00:18:50,536 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:18:50,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i [2024-11-24 00:18:50,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/ed099707c/af7d560525e541e68e7b7d996ff27669/FLAG926bb25ff [2024-11-24 00:18:50,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/ed099707c/af7d560525e541e68e7b7d996ff27669 [2024-11-24 00:18:50,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:18:50,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:18:50,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:18:50,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:18:50,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:18:50,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:18:50" (1/1) ... [2024-11-24 00:18:50,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17914b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:18:50, skipping insertion in model container [2024-11-24 00:18:50,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:18:50" (1/1) ... [2024-11-24 00:18:50,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:18:52,375 WARN L250 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_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i[71418,71431] [2024-11-24 00:18:52,717 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1554) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-24 00:18:52,732 INFO L158 Benchmark]: Toolchain (without parser) took 2118.32ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 61.0MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:18:52,732 INFO L158 Benchmark]: CDTParser took 2.14ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:18:52,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2114.14ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 61.0MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:18:52,737 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.14ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2114.14ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 61.0MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC --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 b4732112572a785449d8fc0d9f11ee719382a59fc14ab61bdee6adedf025d90a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:18:55,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:18:55,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:18:56,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:18:56,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:18:56,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:18:56,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:18:56,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:18:56,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:18:56,107 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:18:56,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:18:56,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:18:56,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:18:56,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:18:56,118 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:18:56,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:18:56,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:18:56,124 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:18:56,125 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:18:56,126 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:18:56,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:18:56,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:18:56,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:56,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:18:56,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:18:56,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:18:56,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:18:56,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:18:56,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:18:56,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:18:56,129 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:18:56,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:18:56,133 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC 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 -> b4732112572a785449d8fc0d9f11ee719382a59fc14ab61bdee6adedf025d90a [2024-11-24 00:18:56,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:18:56,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:18:56,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:18:56,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:18:56,576 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:18:56,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i [2024-11-24 00:19:00,197 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/ad05c8bd3/b5bcf7f1eae449d2aa6586e6d7e733de/FLAG3e55befc5 [2024-11-24 00:19:00,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:19:00,841 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i [2024-11-24 00:19:00,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/ad05c8bd3/b5bcf7f1eae449d2aa6586e6d7e733de/FLAG3e55befc5 [2024-11-24 00:19:00,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/data/ad05c8bd3/b5bcf7f1eae449d2aa6586e6d7e733de [2024-11-24 00:19:00,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:19:00,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:19:00,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:19:00,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:19:00,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:19:00,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:19:00" (1/1) ... [2024-11-24 00:19:00,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b710305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:00, skipping insertion in model container [2024-11-24 00:19:00,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:19:00" (1/1) ... [2024-11-24 00:19:01,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:19:02,845 WARN L250 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_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i[71418,71431] [2024-11-24 00:19:03,361 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-24 00:19:03,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:19:03,492 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:19:03,589 WARN L250 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_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/sv-benchmarks/c/neural-networks/softsign_w4_r3_case_1_unsafe.c-amalgamation.i[71418,71431] [2024-11-24 00:19:03,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:19:04,163 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:19:04,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04 WrapperNode [2024-11-24 00:19:04,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:19:04,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:19:04,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:19:04,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:19:04,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,329 INFO L138 Inliner]: procedures = 780, calls = 721, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 410 [2024-11-24 00:19:04,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:19:04,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:19:04,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:19:04,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:19:04,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,426 INFO L175 MemorySlicer]: Split 185 memory accesses to 12 slices as follows [2, 43, 7, 2, 27, 11, 9, 35, 11, 10, 12, 16]. 23 percent of accesses are in the largest equivalence class. The 91 initializations are split as follows [2, 12, 7, 2, 16, 8, 8, 0, 8, 8, 8, 12]. The 56 writes are split as follows [0, 14, 0, 0, 5, 0, 0, 34, 0, 0, 0, 3]. [2024-11-24 00:19:04,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,511 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:19:04,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:19:04,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:19:04,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:19:04,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (1/1) ... [2024-11-24 00:19:04,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:19:04,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:19:04,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:19:04,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:19:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-24 00:19:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-24 00:19:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-24 00:19:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-24 00:19:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-24 00:19:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-24 00:19:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-24 00:19:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-24 00:19:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-24 00:19:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-24 00:19:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-24 00:19:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-24 00:19:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-24 00:19:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-24 00:19:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-24 00:19:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-24 00:19:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-24 00:19:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-24 00:19:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-24 00:19:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:19:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-24 00:19:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-24 00:19:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-24 00:19:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-24 00:19:04,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-24 00:19:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-24 00:19:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-24 00:19:04,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:19:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:19:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 00:19:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 00:19:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 00:19:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 00:19:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 00:19:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-24 00:19:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-24 00:19:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-24 00:19:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-24 00:19:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:19:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:19:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:19:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-24 00:19:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-24 00:19:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-24 00:19:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-24 00:19:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-24 00:19:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-24 00:19:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-24 00:19:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-24 00:19:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-24 00:19:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-24 00:19:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-24 00:19:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-24 00:19:04,681 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:19:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-24 00:19:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-24 00:19:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-24 00:19:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-24 00:19:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-24 00:19:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-24 00:19:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-24 00:19:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:19:04,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 00:19:04,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 00:19:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 00:19:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 00:19:04,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 00:19:05,104 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:19:05,109 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:19:20,272 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2024-11-24 00:19:20,273 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:19:20,290 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:19:20,290 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-24 00:19:20,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:19:20 BoogieIcfgContainer [2024-11-24 00:19:20,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:19:20,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:19:20,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:19:20,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:19:20,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:19:00" (1/3) ... [2024-11-24 00:19:20,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70881cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:19:20, skipping insertion in model container [2024-11-24 00:19:20,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:04" (2/3) ... [2024-11-24 00:19:20,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70881cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:19:20, skipping insertion in model container [2024-11-24 00:19:20,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:19:20" (3/3) ... [2024-11-24 00:19:20,305 INFO L128 eAbstractionObserver]: Analyzing ICFG softsign_w4_r3_case_1_unsafe.c-amalgamation.i [2024-11-24 00:19:20,325 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:19:20,327 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softsign_w4_r3_case_1_unsafe.c-amalgamation.i that has 17 procedures, 177 locations, 1 initial locations, 32 loop locations, and 1 error locations. [2024-11-24 00:19:20,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:19:20,427 INFO L333 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, 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;@439dac90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:19:20,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:19:20,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:19:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-24 00:19:20,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:20,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:20,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:20,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:20,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1752628958, now seen corresponding path program 1 times [2024-11-24 00:19:20,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:20,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973159432] [2024-11-24 00:19:20,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:20,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:20,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:20,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:19:20,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:19:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:22,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:19:22,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:19:22,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:22,062 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:22,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973159432] [2024-11-24 00:19:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973159432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:22,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:22,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:19:22,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544873871] [2024-11-24 00:19:22,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:22,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:19:22,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:22,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:19:22,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:19:22,099 INFO L87 Difference]: Start difference. First operand has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:19:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:22,140 INFO L93 Difference]: Finished difference Result 262 states and 388 transitions. [2024-11-24 00:19:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:19:22,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-24 00:19:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:22,153 INFO L225 Difference]: With dead ends: 262 [2024-11-24 00:19:22,153 INFO L226 Difference]: Without dead ends: 129 [2024-11-24 00:19:22,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:19:22,161 INFO L435 NwaCegarLoop]: 172 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, 172 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 [2024-11-24 00:19:22,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:19:22,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-24 00:19:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-24 00:19:22,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 116 states have (on average 1.3275862068965518) internal successors, (154), 116 states have internal predecessors, (154), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:19:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 168 transitions. [2024-11-24 00:19:22,238 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 168 transitions. Word has length 17 [2024-11-24 00:19:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:22,238 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 168 transitions. [2024-11-24 00:19:22,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:19:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 168 transitions. [2024-11-24 00:19:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-24 00:19:22,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:22,242 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:22,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:19:22,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:22,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:22,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1996825343, now seen corresponding path program 1 times [2024-11-24 00:19:22,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:22,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656808611] [2024-11-24 00:19:22,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:22,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:22,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:22,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:19:22,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:19:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:23,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:19:23,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:24,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:19:24,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:24,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:24,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656808611] [2024-11-24 00:19:24,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656808611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:24,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:24,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:19:24,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926993202] [2024-11-24 00:19:24,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:24,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:19:24,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:24,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:19:24,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:19:24,814 INFO L87 Difference]: Start difference. First operand 129 states and 168 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:19:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:25,208 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions. [2024-11-24 00:19:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:19:25,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-24 00:19:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:25,214 INFO L225 Difference]: With dead ends: 140 [2024-11-24 00:19:25,214 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 00:19:25,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:19:25,215 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 16 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:25,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 642 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:19:25,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 00:19:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-24 00:19:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:19:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 153 transitions. [2024-11-24 00:19:25,228 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 153 transitions. Word has length 17 [2024-11-24 00:19:25,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:25,229 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 153 transitions. [2024-11-24 00:19:25,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:19:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 153 transitions. [2024-11-24 00:19:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-24 00:19:25,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:25,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:25,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:19:25,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:25,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:25,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:25,432 INFO L85 PathProgramCache]: Analyzing trace with hash 702928858, now seen corresponding path program 1 times [2024-11-24 00:19:25,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:25,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766374485] [2024-11-24 00:19:25,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:25,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:25,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:25,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:19:25,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 00:19:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:26,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:19:26,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:19:29,425 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:29,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:19:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766374485] [2024-11-24 00:19:29,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766374485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:29,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:29,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:19:29,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202075168] [2024-11-24 00:19:29,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:29,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:19:29,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:19:29,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:19:29,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:19:29,428 INFO L87 Difference]: Start difference. First operand 119 states and 153 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:19:30,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:32,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:33,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:19:38,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:19:42,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:47,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:51,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:19:55,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:19:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:58,994 INFO L93 Difference]: Finished difference Result 140 states and 179 transitions. [2024-11-24 00:19:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:19:58,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-24 00:19:58,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:58,999 INFO L225 Difference]: With dead ends: 140 [2024-11-24 00:19:58,999 INFO L226 Difference]: Without dead ends: 128 [2024-11-24 00:19:59,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:19:59,001 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 157 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:59,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 801 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2024-11-24 00:19:59,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-24 00:19:59,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 120. [2024-11-24 00:19:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 108 states have internal predecessors, (142), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:19:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2024-11-24 00:19:59,023 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 17 [2024-11-24 00:19:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:59,024 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2024-11-24 00:19:59,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:19:59,024 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2024-11-24 00:19:59,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:19:59,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:59,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:59,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:19:59,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:59,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:59,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -953891747, now seen corresponding path program 1 times [2024-11-24 00:19:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:19:59,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032516477] [2024-11-24 00:19:59,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:59,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:19:59,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:19:59,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:19:59,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 00:20:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:00,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:20:00,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:20:18,140 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:20:32,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:20:32,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032516477] [2024-11-24 00:20:32,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032516477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:20:32,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1586534527] [2024-11-24 00:20:32,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:32,855 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:20:32,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:20:32,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:20:32,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-24 00:20:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:34,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:20:34,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:20:35,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:20:35,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1586534527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:20:35,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:20:35,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-24 00:20:35,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360405687] [2024-11-24 00:20:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:20:35,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:20:35,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:20:35,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:20:35,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:20:35,362 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:20:35,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:35,601 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2024-11-24 00:20:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:20:35,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2024-11-24 00:20:35,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:35,604 INFO L225 Difference]: With dead ends: 239 [2024-11-24 00:20:35,604 INFO L226 Difference]: Without dead ends: 128 [2024-11-24 00:20:35,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:20:35,608 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 3 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:35,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:20:35,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-24 00:20:35,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-24 00:20:35,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 115 states have (on average 1.3043478260869565) internal successors, (150), 115 states have internal predecessors, (150), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:20:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 164 transitions. [2024-11-24 00:20:35,630 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 164 transitions. Word has length 63 [2024-11-24 00:20:35,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:35,631 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 164 transitions. [2024-11-24 00:20:35,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 00:20:35,632 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 164 transitions. [2024-11-24 00:20:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:20:35,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:35,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:35,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-24 00:20:35,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-24 00:20:36,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:20:36,035 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:36,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash -379142189, now seen corresponding path program 1 times [2024-11-24 00:20:36,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:20:36,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671495009] [2024-11-24 00:20:36,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:36,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:20:36,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:20:36,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:20:36,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 00:20:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:37,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:20:37,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:20:54,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:08,774 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:21:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671495009] [2024-11-24 00:21:08,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671495009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2076747189] [2024-11-24 00:21:08,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:08,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:21:08,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:21:08,777 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:21:08,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-24 00:21:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:10,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:21:10,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:13,912 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:13,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2076747189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:13,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:21:13,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-11-24 00:21:13,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897178624] [2024-11-24 00:21:13,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:13,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:21:13,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:21:13,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:21:13,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:21:13,915 INFO L87 Difference]: Start difference. First operand 128 states and 164 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 00:21:15,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:15,006 INFO L93 Difference]: Finished difference Result 258 states and 335 transitions. [2024-11-24 00:21:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:15,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-24 00:21:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:15,009 INFO L225 Difference]: With dead ends: 258 [2024-11-24 00:21:15,009 INFO L226 Difference]: Without dead ends: 136 [2024-11-24 00:21:15,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:21:15,011 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 28 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:15,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 711 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:21:15,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-24 00:21:15,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 129. [2024-11-24 00:21:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 116 states have internal predecessors, (151), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:21:15,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 165 transitions. [2024-11-24 00:21:15,028 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 165 transitions. Word has length 65 [2024-11-24 00:21:15,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:15,032 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 165 transitions. [2024-11-24 00:21:15,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 00:21:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 165 transitions. [2024-11-24 00:21:15,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 00:21:15,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:15,036 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:15,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:15,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-24 00:21:15,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:21:15,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:21:15,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash -258896045, now seen corresponding path program 1 times [2024-11-24 00:21:15,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:21:15,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699626295] [2024-11-24 00:21:15,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:15,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:21:15,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:21:15,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:21:15,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-24 00:21:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:16,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:21:16,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:34,507 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:21:34,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:48,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:21:48,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699626295] [2024-11-24 00:21:48,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699626295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:48,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1948498284] [2024-11-24 00:21:48,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:48,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:21:48,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:21:48,957 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:21:48,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-24 00:21:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:51,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 00:21:51,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:22:00,185 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:22:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1948498284] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:22:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20 [2024-11-24 00:22:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059510139] [2024-11-24 00:22:08,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:08,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:22:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:22:08,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:22:08,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:22:08,934 INFO L87 Difference]: Start difference. First operand 129 states and 165 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:22:13,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:22:17,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:22:21,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:22:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:23,289 INFO L93 Difference]: Finished difference Result 161 states and 205 transitions. [2024-11-24 00:22:23,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:22:23,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2024-11-24 00:22:23,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:23,295 INFO L225 Difference]: With dead ends: 161 [2024-11-24 00:22:23,296 INFO L226 Difference]: Without dead ends: 132 [2024-11-24 00:22:23,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 212 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:22:23,297 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 35 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:23,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 587 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2024-11-24 00:22:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-24 00:22:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2024-11-24 00:22:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 117 states have internal predecessors, (152), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:22:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 166 transitions. [2024-11-24 00:22:23,322 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 166 transitions. Word has length 73 [2024-11-24 00:22:23,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:23,327 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 166 transitions. [2024-11-24 00:22:23,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:22:23,327 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 166 transitions. [2024-11-24 00:22:23,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 00:22:23,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:23,330 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:23,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:22:23,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-24 00:22:23,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:22:23,738 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:22:23,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1370061523, now seen corresponding path program 1 times [2024-11-24 00:22:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:22:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655468763] [2024-11-24 00:22:23,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:23,740 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:22:23,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:22:23,742 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:22:23,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 00:22:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:25,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:22:25,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:22:43,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:57,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:22:57,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655468763] [2024-11-24 00:22:57,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655468763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:57,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1651596318] [2024-11-24 00:22:57,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:57,019 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:22:57,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:22:57,022 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:22:57,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-24 00:22:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:58,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:22:58,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:23:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 00:23:01,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:23:01,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1651596318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:01,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:23:01,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-24 00:23:01,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475925143] [2024-11-24 00:23:01,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:01,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:23:01,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:23:01,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:23:01,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:23:01,705 INFO L87 Difference]: Start difference. First operand 130 states and 166 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:23:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:02,814 INFO L93 Difference]: Finished difference Result 137 states and 172 transitions. [2024-11-24 00:23:02,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:23:02,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2024-11-24 00:23:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:02,817 INFO L225 Difference]: With dead ends: 137 [2024-11-24 00:23:02,821 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 00:23:02,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:23:02,823 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 14 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:02,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 583 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:23:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 00:23:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-24 00:23:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 107 states have internal predecessors, (138), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:23:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2024-11-24 00:23:02,863 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 73 [2024-11-24 00:23:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:02,863 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2024-11-24 00:23:02,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:23:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2024-11-24 00:23:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 00:23:02,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:02,867 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:02,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 00:23:03,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-24 00:23:03,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:23:03,272 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:03,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash -717922281, now seen corresponding path program 1 times [2024-11-24 00:23:03,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:23:03,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841562738] [2024-11-24 00:23:03,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:03,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:23:03,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:23:03,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:23:03,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-24 00:23:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:04,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:23:04,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:23:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:23:21,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:23:35,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:23:35,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841562738] [2024-11-24 00:23:35,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841562738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:23:35,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1757005701] [2024-11-24 00:23:35,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:35,495 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:23:35,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:23:35,497 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:23:35,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-24 00:23:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:38,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:23:38,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:23:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 00:23:48,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:24:00,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1757005701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:24:00,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:24:00,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 17 [2024-11-24 00:24:00,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462429631] [2024-11-24 00:24:00,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:24:00,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:24:00,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:24:00,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:24:00,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:24:00,898 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 17 states, 14 states have (on average 6.928571428571429) internal successors, (97), 17 states have internal predecessors, (97), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-24 00:24:04,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:08,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:13,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:17,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:21,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:25,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:29,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:33,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:37,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:41,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:45,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:49,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:24:53,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:00,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:08,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:12,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:16,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:30,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:46,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:25:50,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:25:50,306 INFO L93 Difference]: Finished difference Result 379 states and 495 transitions. [2024-11-24 00:25:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:25:50,309 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 6.928571428571429) internal successors, (97), 17 states have internal predecessors, (97), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 75 [2024-11-24 00:25:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:25:50,310 INFO L225 Difference]: With dead ends: 379 [2024-11-24 00:25:50,310 INFO L226 Difference]: Without dead ends: 122 [2024-11-24 00:25:50,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 167 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=212, Invalid=1270, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 00:25:50,312 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 374 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 18 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:25:50,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1625 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 517 Invalid, 17 Unknown, 0 Unchecked, 97.3s Time] [2024-11-24 00:25:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-24 00:25:50,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-24 00:25:50,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.2844036697247707) internal successors, (140), 109 states have internal predecessors, (140), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:25:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 152 transitions. [2024-11-24 00:25:50,326 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 152 transitions. Word has length 75 [2024-11-24 00:25:50,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:25:50,326 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 152 transitions. [2024-11-24 00:25:50,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 6.928571428571429) internal successors, (97), 17 states have internal predecessors, (97), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-24 00:25:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 152 transitions. [2024-11-24 00:25:50,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 00:25:50,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:25:50,328 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:25:50,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-24 00:25:50,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-24 00:25:50,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:25:50,729 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:25:50,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:25:50,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1501421903, now seen corresponding path program 1 times [2024-11-24 00:25:50,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:25:50,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914030665] [2024-11-24 00:25:50,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:25:50,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:25:50,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:25:50,732 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:25:50,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-24 00:25:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:25:52,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:25:52,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:26:10,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:26:25,334 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:26:25,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914030665] [2024-11-24 00:26:25,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914030665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:26:25,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2026750773] [2024-11-24 00:26:25,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:25,335 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:26:25,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:26:25,339 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:26:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-24 00:26:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:27,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:26:27,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:26:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:26:30,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:26:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:26:37,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2026750773] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:26:37,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:26:37,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14, 6] total 20 [2024-11-24 00:26:37,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492115347] [2024-11-24 00:26:37,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:26:37,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:26:37,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:26:37,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:26:37,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:26:37,898 INFO L87 Difference]: Start difference. First operand 121 states and 152 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 00:26:40,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:26:40,410 INFO L93 Difference]: Finished difference Result 255 states and 325 transitions. [2024-11-24 00:26:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:26:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2024-11-24 00:26:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:26:40,414 INFO L225 Difference]: With dead ends: 255 [2024-11-24 00:26:40,414 INFO L226 Difference]: Without dead ends: 122 [2024-11-24 00:26:40,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 234 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:26:40,416 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 26 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:26:40,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 565 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:26:40,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-24 00:26:40,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-24 00:26:40,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:26:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2024-11-24 00:26:40,436 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 79 [2024-11-24 00:26:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:26:40,437 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2024-11-24 00:26:40,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-24 00:26:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2024-11-24 00:26:40,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 00:26:40,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:26:40,440 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:26:40,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-24 00:26:40,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-24 00:26:40,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:26:40,841 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:26:40,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:26:40,841 INFO L85 PathProgramCache]: Analyzing trace with hash -538502557, now seen corresponding path program 1 times [2024-11-24 00:26:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:26:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36611404] [2024-11-24 00:26:40,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:26:40,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:26:40,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:26:40,846 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:26:40,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-24 00:26:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:26:42,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:26:42,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:27:02,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:27:17,679 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:27:17,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36611404] [2024-11-24 00:27:17,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36611404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:27:17,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1883205703] [2024-11-24 00:27:17,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:17,679 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:27:17,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:27:17,681 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:27:17,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-24 00:27:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:19,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:27:19,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:27:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:26,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:27:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:39,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1883205703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:27:39,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:27:39,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2024-11-24 00:27:39,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033635830] [2024-11-24 00:27:39,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:27:39,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:27:39,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:27:39,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:27:39,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:27:39,115 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand has 23 states, 20 states have (on average 7.6) internal successors, (152), 22 states have internal predecessors, (152), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-24 00:27:43,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:27:47,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:27:51,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:27:55,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:27:59,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:03,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:07,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:11,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:15,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:19,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:28,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:33,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:48,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:50,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:54,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:28:59,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:29:07,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:29:13,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:29:42,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:29:44,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:30:04,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:30:17,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:30:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:30:18,385 INFO L93 Difference]: Finished difference Result 415 states and 539 transitions. [2024-11-24 00:30:18,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-24 00:30:18,389 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 7.6) internal successors, (152), 22 states have internal predecessors, (152), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) Word has length 87 [2024-11-24 00:30:18,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:30:18,390 INFO L225 Difference]: With dead ends: 415 [2024-11-24 00:30:18,391 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 00:30:18,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 255 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 64.7s TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660 [2024-11-24 00:30:18,394 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 348 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 32 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:30:18,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 2399 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 766 Invalid, 18 Unknown, 0 Unchecked, 114.9s Time] [2024-11-24 00:30:18,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 00:30:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 135. [2024-11-24 00:30:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.278688524590164) internal successors, (156), 123 states have internal predecessors, (156), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:30:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2024-11-24 00:30:18,415 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 87 [2024-11-24 00:30:18,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:30:18,415 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2024-11-24 00:30:18,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 7.6) internal successors, (152), 22 states have internal predecessors, (152), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-24 00:30:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2024-11-24 00:30:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 00:30:18,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:30:18,417 INFO L218 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:30:18,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-24 00:30:18,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-24 00:30:18,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:30:18,818 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:30:18,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:30:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1436877023, now seen corresponding path program 1 times [2024-11-24 00:30:18,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:30:18,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417712526] [2024-11-24 00:30:18,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:30:18,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:30:18,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:30:18,822 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:30:18,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-24 00:30:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:30:20,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:30:20,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:30:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:30:45,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:02,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:31:02,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417712526] [2024-11-24 00:31:02,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417712526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:31:02,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1040379932] [2024-11-24 00:31:02,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:31:02,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:31:02,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:31:02,751 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:31:02,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea459d25-df81-4ebf-b0dc-ebe4fff5c86b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-24 00:31:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:31:05,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:31:05,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:31:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:31:13,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:31:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:31:27,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1040379932] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:31:27,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:31:27,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 24 [2024-11-24 00:31:27,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719989476] [2024-11-24 00:31:27,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:31:27,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:31:27,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:31:27,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:31:27,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:31:27,286 INFO L87 Difference]: Start difference. First operand 135 states and 169 transitions. Second operand has 24 states, 21 states have (on average 7.0) internal successors, (147), 23 states have internal predecessors, (147), 10 states have call successors, (15), 3 states have call predecessors, (15), 9 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-24 00:31:31,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:31:35,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:31:39,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:31:43,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:31:47,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:31:51,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:31:56,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:00,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:04,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:08,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:12,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:20,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:25,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:27,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:37,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:41,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:32:46,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:33:16,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:33:29,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:33:46,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]