/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:27:30,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:27:30,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:27:30,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 16:27:30,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:27:30,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:27:30,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:27:30,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 16:27:30,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:27:30,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:27:30,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:27:30,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:27:30,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:27:30,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:27:30,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:27:30,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:27:30,684 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:27:30,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:27:30,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:27:30,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:27:30,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:27:30,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:27:30,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:27:30,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:27:30,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:27:30,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:27:30,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:27:30,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:27:30,930 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:27:30,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-03-03 16:27:30,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdec003a/a802a340650f4ed08a071863d9915cc2/FLAG1aa7f8e2d [2022-03-03 16:27:31,453 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:27:31,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i [2022-03-03 16:27:31,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdec003a/a802a340650f4ed08a071863d9915cc2/FLAG1aa7f8e2d [2022-03-03 16:27:31,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdec003a/a802a340650f4ed08a071863d9915cc2 [2022-03-03 16:27:31,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:27:31,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:27:31,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:27:31,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:27:31,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:27:31,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a280266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31, skipping insertion in model container [2022-03-03 16:27:31,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:27:31,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:27:31,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i[818,831] [2022-03-03 16:27:32,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:27:32,023 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:27:32,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-2.i[818,831] [2022-03-03 16:27:32,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:27:32,149 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:27:32,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32 WrapperNode [2022-03-03 16:27:32,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:27:32,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:27:32,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:27:32,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:27:32,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,219 INFO L137 Inliner]: procedures = 363, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-03-03 16:27:32,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:27:32,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:27:32,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:27:32,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:27:32,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:27:32,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:27:32,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:27:32,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:27:32,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (1/1) ... [2022-03-03 16:27:32,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:27:32,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:32,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 16:27:32,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 16:27:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:27:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:27:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 16:27:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-03-03 16:27:32,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-03-03 16:27:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:27:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:27:32,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:27:32,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:27:32,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:27:32,366 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:27:32,494 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:27:32,496 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:27:32,643 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:27:32,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:27:32,649 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-03 16:27:32,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:27:32 BoogieIcfgContainer [2022-03-03 16:27:32,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:27:32,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:27:32,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:27:32,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:27:32,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:27:31" (1/3) ... [2022-03-03 16:27:32,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404be2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:27:32, skipping insertion in model container [2022-03-03 16:27:32,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:32" (2/3) ... [2022-03-03 16:27:32,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404be2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:27:32, skipping insertion in model container [2022-03-03 16:27:32,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:27:32" (3/3) ... [2022-03-03 16:27:32,658 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-2.i [2022-03-03 16:27:32,661 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:27:32,661 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:27:32,661 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:27:32,661 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:27:32,686 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,686 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,686 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,686 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,687 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,687 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,687 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,687 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,687 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,688 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,688 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,688 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,688 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,688 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,688 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,689 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,689 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,689 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,690 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,690 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,690 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,690 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,690 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,690 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,691 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,691 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,691 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,691 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,691 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,692 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,692 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,692 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,692 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,692 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,692 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,693 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,693 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,693 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,693 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,693 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,694 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,694 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,696 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,697 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,697 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,697 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,697 WARN L322 ript$VariableManager]: TermVariabe |thread_function_dataraceThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,697 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,698 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,698 WARN L322 ript$VariableManager]: TermVariabe thread_function_dataraceThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,701 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-03 16:27:32,734 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:27:32,746 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:27:32,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-03 16:27:32,756 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 100 transitions, 208 flow [2022-03-03 16:27:32,810 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 348 states, 347 states have (on average 2.0144092219020173) internal successors, (699), 347 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 347 states have (on average 2.0144092219020173) internal successors, (699), 347 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-03 16:27:32,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:32,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:32,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:32,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:32,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1531138945, now seen corresponding path program 1 times [2022-03-03 16:27:32,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:32,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214423870] [2022-03-03 16:27:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:33,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:33,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:33,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214423870] [2022-03-03 16:27:33,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214423870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:33,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:27:33,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 16:27:33,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947479802] [2022-03-03 16:27:33,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:33,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 16:27:33,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 16:27:33,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:27:33,070 INFO L87 Difference]: Start difference. First operand has 348 states, 347 states have (on average 2.0144092219020173) internal successors, (699), 347 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:33,095 INFO L93 Difference]: Finished difference Result 346 states and 646 transitions. [2022-03-03 16:27:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 16:27:33,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-03-03 16:27:33,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:33,107 INFO L225 Difference]: With dead ends: 346 [2022-03-03 16:27:33,107 INFO L226 Difference]: Without dead ends: 301 [2022-03-03 16:27:33,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:27:33,113 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:33,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:33,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-03-03 16:27:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2022-03-03 16:27:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.8533333333333333) internal successors, (556), 300 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 556 transitions. [2022-03-03 16:27:33,160 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 556 transitions. Word has length 65 [2022-03-03 16:27:33,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:33,160 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 556 transitions. [2022-03-03 16:27:33,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 556 transitions. [2022-03-03 16:27:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-03 16:27:33,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:33,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:33,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:27:33,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:33,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:33,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2061601119, now seen corresponding path program 1 times [2022-03-03 16:27:33,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:33,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537909381] [2022-03-03 16:27:33,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:33,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:33,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:33,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537909381] [2022-03-03 16:27:33,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537909381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:33,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:27:33,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:27:33,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928209803] [2022-03-03 16:27:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:33,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:27:33,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:33,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:27:33,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:33,291 INFO L87 Difference]: Start difference. First operand 301 states and 556 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:33,333 INFO L93 Difference]: Finished difference Result 420 states and 794 transitions. [2022-03-03 16:27:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:27:33,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-03-03 16:27:33,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:33,339 INFO L225 Difference]: With dead ends: 420 [2022-03-03 16:27:33,339 INFO L226 Difference]: Without dead ends: 420 [2022-03-03 16:27:33,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:33,340 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:33,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 161 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:33,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-03 16:27:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 318. [2022-03-03 16:27:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.861198738170347) internal successors, (590), 317 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 590 transitions. [2022-03-03 16:27:33,362 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 590 transitions. Word has length 65 [2022-03-03 16:27:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:33,363 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 590 transitions. [2022-03-03 16:27:33,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 590 transitions. [2022-03-03 16:27:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-03 16:27:33,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:33,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:33,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:27:33,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:33,366 INFO L85 PathProgramCache]: Analyzing trace with hash -296287088, now seen corresponding path program 1 times [2022-03-03 16:27:33,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:33,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812390655] [2022-03-03 16:27:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:33,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:33,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:33,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812390655] [2022-03-03 16:27:33,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812390655] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:33,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152277228] [2022-03-03 16:27:33,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:33,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:33,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:33,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:33,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 16:27:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:33,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-03 16:27:33,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:27:33,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 16:27:33,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152277228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:33,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 16:27:33,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-03 16:27:33,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113421321] [2022-03-03 16:27:33,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:33,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:27:33,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:33,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:27:33,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:27:33,724 INFO L87 Difference]: Start difference. First operand 318 states and 590 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:33,749 INFO L93 Difference]: Finished difference Result 382 states and 718 transitions. [2022-03-03 16:27:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:27:33,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-03-03 16:27:33,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:33,754 INFO L225 Difference]: With dead ends: 382 [2022-03-03 16:27:33,754 INFO L226 Difference]: Without dead ends: 382 [2022-03-03 16:27:33,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:27:33,758 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 18 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:33,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 158 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-03-03 16:27:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 334. [2022-03-03 16:27:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.867867867867868) internal successors, (622), 333 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 622 transitions. [2022-03-03 16:27:33,775 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 622 transitions. Word has length 73 [2022-03-03 16:27:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:33,776 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 622 transitions. [2022-03-03 16:27:33,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 622 transitions. [2022-03-03 16:27:33,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-03 16:27:33,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:33,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:33,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:33,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:34,000 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:34,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:34,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2135479359, now seen corresponding path program 1 times [2022-03-03 16:27:34,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:34,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144883612] [2022-03-03 16:27:34,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:34,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:27:34,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:34,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144883612] [2022-03-03 16:27:34,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144883612] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:34,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838985415] [2022-03-03 16:27:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:34,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:34,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:34,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:34,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 16:27:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:34,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 16:27:34,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:27:34,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:27:34,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838985415] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:34,513 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:34,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 16:27:34,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183959617] [2022-03-03 16:27:34,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:34,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:27:34,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:34,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:27:34,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:27:34,516 INFO L87 Difference]: Start difference. First operand 334 states and 622 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:34,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:34,617 INFO L93 Difference]: Finished difference Result 622 states and 1198 transitions. [2022-03-03 16:27:34,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:27:34,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-03-03 16:27:34,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:34,621 INFO L225 Difference]: With dead ends: 622 [2022-03-03 16:27:34,621 INFO L226 Difference]: Without dead ends: 622 [2022-03-03 16:27:34,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:27:34,625 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 238 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:34,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 499 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-03-03 16:27:34,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2022-03-03 16:27:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 1.92914653784219) internal successors, (1198), 621 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1198 transitions. [2022-03-03 16:27:34,649 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1198 transitions. Word has length 78 [2022-03-03 16:27:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:34,649 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 1198 transitions. [2022-03-03 16:27:34,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1198 transitions. [2022-03-03 16:27:34,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-03 16:27:34,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:34,654 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:34,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:34,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-03 16:27:34,872 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:34,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash -758795275, now seen corresponding path program 2 times [2022-03-03 16:27:34,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:34,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015231626] [2022-03-03 16:27:34,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:34,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-03 16:27:34,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:34,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015231626] [2022-03-03 16:27:34,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015231626] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:34,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50396763] [2022-03-03 16:27:34,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 16:27:34,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:34,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:34,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:34,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 16:27:35,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 16:27:35,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:35,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 16:27:35,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-03 16:27:35,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:35,312 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-03 16:27:35,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50396763] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:35,312 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:35,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 16:27:35,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889598688] [2022-03-03 16:27:35,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:35,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:27:35,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:35,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:27:35,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:27:35,315 INFO L87 Difference]: Start difference. First operand 622 states and 1198 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:35,386 INFO L93 Difference]: Finished difference Result 942 states and 1838 transitions. [2022-03-03 16:27:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:27:35,386 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-03-03 16:27:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:35,391 INFO L225 Difference]: With dead ends: 942 [2022-03-03 16:27:35,391 INFO L226 Difference]: Without dead ends: 942 [2022-03-03 16:27:35,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:27:35,392 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 238 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:35,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 476 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-03-03 16:27:35,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-03-03 16:27:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.953241232731137) internal successors, (1838), 941 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:35,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1838 transitions. [2022-03-03 16:27:35,414 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1838 transitions. Word has length 94 [2022-03-03 16:27:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:35,415 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1838 transitions. [2022-03-03 16:27:35,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1838 transitions. [2022-03-03 16:27:35,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-03 16:27:35,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:35,422 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:35,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:35,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:35,636 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:35,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 169537301, now seen corresponding path program 3 times [2022-03-03 16:27:35,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:35,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801149099] [2022-03-03 16:27:35,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:35,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 16:27:35,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:35,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801149099] [2022-03-03 16:27:35,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801149099] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:35,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241558990] [2022-03-03 16:27:35,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 16:27:35,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:35,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:35,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:35,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 16:27:35,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-03 16:27:35,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:35,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 16:27:35,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-03 16:27:36,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-03 16:27:36,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241558990] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:36,272 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:36,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-03-03 16:27:36,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369967171] [2022-03-03 16:27:36,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:36,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 16:27:36,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:36,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 16:27:36,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:27:36,279 INFO L87 Difference]: Start difference. First operand 942 states and 1838 transitions. Second operand has 23 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:40,784 INFO L93 Difference]: Finished difference Result 2254 states and 4462 transitions. [2022-03-03 16:27:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-03 16:27:40,784 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-03-03 16:27:40,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:40,792 INFO L225 Difference]: With dead ends: 2254 [2022-03-03 16:27:40,793 INFO L226 Difference]: Without dead ends: 2254 [2022-03-03 16:27:40,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23820 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=10782, Invalid=42348, Unknown=0, NotChecked=0, Total=53130 [2022-03-03 16:27:40,810 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 3103 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:40,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3103 Valid, 1201 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:27:40,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-03-03 16:27:40,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1966. [2022-03-03 16:27:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1965 states have (on average 1.9776081424936387) internal successors, (3886), 1965 states have internal predecessors, (3886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 3886 transitions. [2022-03-03 16:27:40,854 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 3886 transitions. Word has length 104 [2022-03-03 16:27:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:40,854 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 3886 transitions. [2022-03-03 16:27:40,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 3886 transitions. [2022-03-03 16:27:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-03 16:27:40,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:40,859 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:40,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:41,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:41,076 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:41,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:41,076 INFO L85 PathProgramCache]: Analyzing trace with hash 355416944, now seen corresponding path program 4 times [2022-03-03 16:27:41,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:41,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697746244] [2022-03-03 16:27:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:41,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:41,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:41,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697746244] [2022-03-03 16:27:41,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697746244] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:41,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332672203] [2022-03-03 16:27:41,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 16:27:41,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:41,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:41,259 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:41,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 16:27:41,335 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 16:27:41,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:41,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-03 16:27:41,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:41,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:41,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332672203] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:41,841 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:41,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-03-03 16:27:41,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434520292] [2022-03-03 16:27:41,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:41,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-03 16:27:41,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:41,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-03 16:27:41,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:27:41,843 INFO L87 Difference]: Start difference. First operand 1966 states and 3886 transitions. Second operand has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 22 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:42,092 INFO L93 Difference]: Finished difference Result 3886 states and 7726 transitions. [2022-03-03 16:27:42,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 16:27:42,092 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 22 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-03-03 16:27:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:42,106 INFO L225 Difference]: With dead ends: 3886 [2022-03-03 16:27:42,106 INFO L226 Difference]: Without dead ends: 3886 [2022-03-03 16:27:42,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=448, Invalid=958, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:27:42,108 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1368 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:42,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 683 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:27:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-03-03 16:27:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2022-03-03 16:27:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3885 states have (on average 1.9886743886743887) internal successors, (7726), 3885 states have internal predecessors, (7726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 7726 transitions. [2022-03-03 16:27:42,212 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 7726 transitions. Word has length 132 [2022-03-03 16:27:42,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:42,213 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 7726 transitions. [2022-03-03 16:27:42,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 22 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 7726 transitions. [2022-03-03 16:27:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-03 16:27:42,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:42,222 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:42,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:42,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:42,438 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:42,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1870863607, now seen corresponding path program 5 times [2022-03-03 16:27:42,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:42,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209688447] [2022-03-03 16:27:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:42,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:42,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:42,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209688447] [2022-03-03 16:27:42,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209688447] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:42,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739603789] [2022-03-03 16:27:42,715 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 16:27:42,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:42,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:42,717 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:42,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 16:27:42,814 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-03-03 16:27:42,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:42,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-03 16:27:42,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:43,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:43,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739603789] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:43,669 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:43,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 42 [2022-03-03 16:27:43,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167654897] [2022-03-03 16:27:43,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:43,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-03 16:27:43,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-03 16:27:43,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1260, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 16:27:43,671 INFO L87 Difference]: Start difference. First operand 3886 states and 7726 transitions. Second operand has 42 states, 42 states have (on average 5.428571428571429) internal successors, (228), 42 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:44,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:44,548 INFO L93 Difference]: Finished difference Result 7726 states and 15406 transitions. [2022-03-03 16:27:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 16:27:44,551 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.428571428571429) internal successors, (228), 42 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2022-03-03 16:27:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:44,575 INFO L225 Difference]: With dead ends: 7726 [2022-03-03 16:27:44,575 INFO L226 Difference]: Without dead ends: 7726 [2022-03-03 16:27:44,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1335 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1888, Invalid=4118, Unknown=0, NotChecked=0, Total=6006 [2022-03-03 16:27:44,578 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 3134 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:44,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3134 Valid, 1496 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:27:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2022-03-03 16:27:44,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 7726. [2022-03-03 16:27:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 1.994304207119741) internal successors, (15406), 7725 states have internal predecessors, (15406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 15406 transitions. [2022-03-03 16:27:44,755 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 15406 transitions. Word has length 172 [2022-03-03 16:27:44,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:44,756 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 15406 transitions. [2022-03-03 16:27:44,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.428571428571429) internal successors, (228), 42 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 15406 transitions. [2022-03-03 16:27:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-03 16:27:44,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:44,776 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:44,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-03 16:27:44,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:44,992 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:44,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash -369170683, now seen corresponding path program 6 times [2022-03-03 16:27:44,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:44,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795711270] [2022-03-03 16:27:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:44,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 1387 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-03 16:27:45,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:45,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795711270] [2022-03-03 16:27:45,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795711270] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:45,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171576579] [2022-03-03 16:27:45,646 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 16:27:45,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:45,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:45,648 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:45,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 16:27:45,749 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-03-03 16:27:45,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:45,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-03 16:27:45,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-03-03 16:27:46,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:47,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-03-03 16:27:47,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171576579] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:47,025 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:47,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 17, 17] total 71 [2022-03-03 16:27:47,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449002619] [2022-03-03 16:27:47,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:47,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-03-03 16:27:47,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:47,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-03-03 16:27:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4259, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 16:27:47,029 INFO L87 Difference]: Start difference. First operand 7726 states and 15406 transitions. Second operand has 71 states, 71 states have (on average 4.380281690140845) internal successors, (311), 71 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:33:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:33:59,024 INFO L93 Difference]: Finished difference Result 14830 states and 29614 transitions. [2022-03-03 16:33:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2597 states. [2022-03-03 16:33:59,024 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 4.380281690140845) internal successors, (311), 71 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2022-03-03 16:33:59,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:33:59,062 INFO L225 Difference]: With dead ends: 14830 [2022-03-03 16:33:59,062 INFO L226 Difference]: Without dead ends: 14830 [2022-03-03 16:33:59,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5663 GetRequests, 3034 SyntacticMatches, 0 SemanticMatches, 2629 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3589725 ImplicationChecksByTransitivity, 346.3s TimeCoverageRelationStatistics Valid=1149550, Invalid=5769980, Unknown=0, NotChecked=0, Total=6919530 [2022-03-03 16:33:59,567 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 33146 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 5208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33146 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 6110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5208 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:33:59,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33146 Valid, 2729 Invalid, 6110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5208 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-03 16:33:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14830 states. [2022-03-03 16:34:00,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14830 to 14830. [2022-03-03 16:34:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14830 states, 14829 states have (on average 1.99703284105469) internal successors, (29614), 14829 states have internal predecessors, (29614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:34:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14830 states to 14830 states and 29614 transitions. [2022-03-03 16:34:00,315 INFO L78 Accepts]: Start accepts. Automaton has 14830 states and 29614 transitions. Word has length 252 [2022-03-03 16:34:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:34:00,316 INFO L470 AbstractCegarLoop]: Abstraction has 14830 states and 29614 transitions. [2022-03-03 16:34:00,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 4.380281690140845) internal successors, (311), 71 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:34:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 14830 states and 29614 transitions. [2022-03-03 16:34:00,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-03-03 16:34:00,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:34:00,352 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:34:00,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-03 16:34:00,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:34:00,568 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:34:00,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:34:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash -540869984, now seen corresponding path program 7 times [2022-03-03 16:34:00,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:34:00,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642335275] [2022-03-03 16:34:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:34:00,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:34:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:34:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:34:01,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:34:01,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642335275] [2022-03-03 16:34:01,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642335275] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:34:01,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728499275] [2022-03-03 16:34:01,833 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 16:34:01,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:34:01,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:34:01,840 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:34:01,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-03 16:34:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:34:01,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-03 16:34:01,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:34:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-03 16:34:03,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:34:04,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-03 16:34:04,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728499275] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:34:04,363 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:34:04,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 100 [2022-03-03 16:34:04,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544888961] [2022-03-03 16:34:04,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:34:04,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-03-03 16:34:04,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:34:04,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-03-03 16:34:04,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1398, Invalid=8502, Unknown=0, NotChecked=0, Total=9900 [2022-03-03 16:34:04,367 INFO L87 Difference]: Start difference. First operand 14830 states and 29614 transitions. Second operand has 100 states, 100 states have (on average 4.51) internal successors, (451), 100 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-03 16:38:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2160 states. [2022-03-03 16:38:28,119 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 16:38:28,120 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 16:38:28,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4865 GetRequests, 2608 SyntacticMatches, 1 SemanticMatches, 2255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2891395 ImplicationChecksByTransitivity, 133.3s TimeCoverageRelationStatistics Valid=1039167, Invalid=4052625, Unknown=0, NotChecked=0, Total=5091792 [2022-03-03 16:38:28,462 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 18216 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 8330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18216 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 10472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8330 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:38:28,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18216 Valid, 3328 Invalid, 10472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8330 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-03 16:38:28,464 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-03 16:38:28,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-03 16:38:28,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-03 16:38:28,669 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2160 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 2257 known predicates. [2022-03-03 16:38:28,671 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-03 16:38:28,673 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2022-03-03 16:38:28,675 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 16:38:28,675 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 16:38:28,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:38:28 BasicIcfg [2022-03-03 16:38:28,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 16:38:28,676 INFO L158 Benchmark]: Toolchain (without parser) took 657182.24ms. Allocated memory was 190.8MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 162.8MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2022-03-03 16:38:28,677 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 16:38:28,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.71ms. Allocated memory was 190.8MB in the beginning and 262.1MB in the end (delta: 71.3MB). Free memory was 162.4MB in the beginning and 206.6MB in the end (delta: -44.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-03-03 16:38:28,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.36ms. Allocated memory is still 262.1MB. Free memory was 206.6MB in the beginning and 204.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:38:28,677 INFO L158 Benchmark]: Boogie Preprocessor took 39.89ms. Allocated memory is still 262.1MB. Free memory was 204.2MB in the beginning and 202.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:38:28,678 INFO L158 Benchmark]: RCFGBuilder took 390.84ms. Allocated memory is still 262.1MB. Free memory was 202.8MB in the beginning and 190.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-03 16:38:28,678 INFO L158 Benchmark]: TraceAbstraction took 656023.64ms. Allocated memory was 262.1MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 189.8MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-03 16:38:28,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 653.71ms. Allocated memory was 190.8MB in the beginning and 262.1MB in the end (delta: 71.3MB). Free memory was 162.4MB in the beginning and 206.6MB in the end (delta: -44.2MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.36ms. Allocated memory is still 262.1MB. Free memory was 206.6MB in the beginning and 204.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.89ms. Allocated memory is still 262.1MB. Free memory was 204.2MB in the beginning and 202.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 390.84ms. Allocated memory is still 262.1MB. Free memory was 202.8MB in the beginning and 190.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 656023.64ms. Allocated memory was 262.1MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 189.8MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2160 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 2257 known predicates. - TimeoutResultAtElement [Line: 1336]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14830states) and FLOYD_HOARE automaton (currently 2160 states, 100 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 2257 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 655.9s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 642.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59484 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59484 mSDsluCounter, 10810 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9864 mSDsCounter, 13924 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3665 IncrementalHoareTripleChecker+Invalid, 17589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13924 mSolverCounterUnsat, 1019 mSDtfsCounter, 3665 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12347 GetRequests, 7091 SyntacticMatches, 1 SemanticMatches, 5254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6506608 ImplicationChecksByTransitivity, 485.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14830occurred in iteration=9, InterpolantAutomatonStates: 2928, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 2540 NumberOfCodeBlocks, 2500 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 3647 ConstructedInterpolants, 0 QuantifiedInterpolants, 5874 SizeOfPredicates, 80 NumberOfNonLiveVariables, 2259 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 6795/12683 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown