/usr/bin/java -Xmx16000000000 -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-wmm/safe029_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:17:07,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:17:07,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:17:07,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 23:17:07,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 23:17:07,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 23:17:07,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 23:17:07,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 23:17:07,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 23:17:07,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 23:17:07,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 23:17:07,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 23:17:07,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:17:07,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:17:07,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:17:07,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:17:07,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:17:07,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:17:07,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:17:07,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:17:07,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:17:07,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:17:07,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:17:07,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:17:07,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-17 23:17:07,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-17 23:17:07,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-17 23:17:07,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-17 23:17:07,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-17 23:17:07,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-17 23:17:07,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-17 23:17:07,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-17 23:17:07,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-17 23:17:07,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-17 23:17:07,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-17 23:17:07,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-17 23:17:07,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-17 23:17:07,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-17 23:17:07,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:17:07,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:17:07,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:17:07,857 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 [2022-01-17 23:17:07,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:17:07,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:17:07,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:17:07,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:17:07,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:17:07,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:17:07,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:17:07,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:17:07,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:17:07,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:17:07,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:17:07,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:17:07,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:17:07,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:17:07,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:17:07,872 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:17:07,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:17:07,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:17:08,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:17:08,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:17:08,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:17:08,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:17:08,057 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:17:08,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2022-01-17 23:17:08,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab16bddc/27df03cd994c4a78b02a5e9d8263eded/FLAG7ee5c051c [2022-01-17 23:17:08,547 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:17:08,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2022-01-17 23:17:08,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab16bddc/27df03cd994c4a78b02a5e9d8263eded/FLAG7ee5c051c [2022-01-17 23:17:08,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab16bddc/27df03cd994c4a78b02a5e9d8263eded [2022-01-17 23:17:08,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:17:08,582 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:17:08,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:17:08,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:17:08,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:17:08,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316f48b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08, skipping insertion in model container [2022-01-17 23:17:08,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:17:08,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:17:08,800 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-wmm/safe029_tso.i[945,958] [2022-01-17 23:17:08,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:17:08,877 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:17:08,884 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-wmm/safe029_tso.i[945,958] [2022-01-17 23:17:08,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:17:08,918 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:17:08,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08 WrapperNode [2022-01-17 23:17:08,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:17:08,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:17:08,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:17:08,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:17:08,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,941 INFO L137 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-01-17 23:17:08,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:17:08,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:17:08,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:17:08,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:17:08,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:17:08,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:17:08,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:17:08,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:17:08,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (1/1) ... [2022-01-17 23:17:08,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:17:08,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:17:09,000 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) [2022-01-17 23:17:09,011 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 [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-17 23:17:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-17 23:17:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-17 23:17:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-17 23:17:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:17:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 23:17:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:17:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:17:09,029 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:17:09,087 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:17:09,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:17:09,181 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:17:09,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:17:09,185 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:17:09,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:17:09 BoogieIcfgContainer [2022-01-17 23:17:09,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:17:09,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:17:09,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:17:09,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:17:09,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:17:08" (1/3) ... [2022-01-17 23:17:09,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1219ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:17:09, skipping insertion in model container [2022-01-17 23:17:09,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:17:08" (2/3) ... [2022-01-17 23:17:09,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1219ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:17:09, skipping insertion in model container [2022-01-17 23:17:09,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:17:09" (3/3) ... [2022-01-17 23:17:09,192 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-01-17 23:17:09,195 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:17:09,195 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:17:09,195 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:17:09,195 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:17:09,214 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,215 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,216 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,216 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,216 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,216 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,217 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,218 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,218 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,218 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,218 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,220 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,220 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,220 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,220 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,222 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,222 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,222 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,222 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:17:09,223 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 23:17:09,251 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:17:09,255 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, 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 [2022-01-17 23:17:09,255 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-17 23:17:09,262 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 73 transitions, 156 flow [2022-01-17 23:17:09,332 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 953 states, 952 states have (on average 2.633403361344538) internal successors, (2507), 952 states have internal predecessors, (2507), 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) [2022-01-17 23:17:09,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 953 states, 952 states have (on average 2.633403361344538) internal successors, (2507), 952 states have internal predecessors, (2507), 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) [2022-01-17 23:17:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-17 23:17:09,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:17:09,349 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] [2022-01-17 23:17:09,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 23:17:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:17:09,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1914735552, now seen corresponding path program 1 times [2022-01-17 23:17:09,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:17:09,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693406784] [2022-01-17 23:17:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:17:09,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:17:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:17:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:17:09,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:17:09,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693406784] [2022-01-17 23:17:09,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693406784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:17:09,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:17:09,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:17:09,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881165053] [2022-01-17 23:17:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:17:09,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:17:09,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:17:09,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:17:09,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:17:09,663 INFO L87 Difference]: Start difference. First operand has 953 states, 952 states have (on average 2.633403361344538) internal successors, (2507), 952 states have internal predecessors, (2507), 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 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-17 23:17:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:17:09,831 INFO L93 Difference]: Finished difference Result 1156 states and 2954 transitions. [2022-01-17 23:17:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:17:09,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2022-01-17 23:17:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:17:09,845 INFO L225 Difference]: With dead ends: 1156 [2022-01-17 23:17:09,845 INFO L226 Difference]: Without dead ends: 862 [2022-01-17 23:17:09,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:17:09,850 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 68 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:17:09,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 357 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:17:09,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2022-01-17 23:17:09,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 862. [2022-01-17 23:17:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 2.554006968641115) internal successors, (2199), 861 states have internal predecessors, (2199), 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) [2022-01-17 23:17:09,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 2199 transitions. [2022-01-17 23:17:09,947 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 2199 transitions. Word has length 45 [2022-01-17 23:17:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:17:09,947 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 2199 transitions. [2022-01-17 23:17:09,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-17 23:17:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 2199 transitions. [2022-01-17 23:17:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-17 23:17:09,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:17:09,950 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] [2022-01-17 23:17:09,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:17:09,950 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 23:17:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:17:09,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1364715329, now seen corresponding path program 1 times [2022-01-17 23:17:09,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:17:09,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542553235] [2022-01-17 23:17:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:17:09,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:17:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:17:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:17:10,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:17:10,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542553235] [2022-01-17 23:17:10,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542553235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:17:10,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:17:10,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:17:10,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573067241] [2022-01-17 23:17:10,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:17:10,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:17:10,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:17:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:17:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:17:10,043 INFO L87 Difference]: Start difference. First operand 862 states and 2199 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-01-17 23:17:10,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:17:10,143 INFO L93 Difference]: Finished difference Result 1023 states and 2589 transitions. [2022-01-17 23:17:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:17:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2022-01-17 23:17:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:17:10,148 INFO L225 Difference]: With dead ends: 1023 [2022-01-17 23:17:10,148 INFO L226 Difference]: Without dead ends: 848 [2022-01-17 23:17:10,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:17:10,149 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 53 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:17:10,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 335 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:17:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-01-17 23:17:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2022-01-17 23:17:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 2.5466351829988194) internal successors, (2157), 847 states have internal predecessors, (2157), 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) [2022-01-17 23:17:10,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2157 transitions. [2022-01-17 23:17:10,171 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 2157 transitions. Word has length 47 [2022-01-17 23:17:10,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:17:10,171 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 2157 transitions. [2022-01-17 23:17:10,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-01-17 23:17:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 2157 transitions. [2022-01-17 23:17:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-17 23:17:10,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:17:10,174 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] [2022-01-17 23:17:10,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:17:10,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 23:17:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:17:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1227449263, now seen corresponding path program 1 times [2022-01-17 23:17:10,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:17:10,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436018606] [2022-01-17 23:17:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:17:10,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:17:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:17:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:17:10,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:17:10,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436018606] [2022-01-17 23:17:10,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436018606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:17:10,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:17:10,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:17:10,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582699516] [2022-01-17 23:17:10,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:17:10,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:17:10,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:17:10,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:17:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:17:10,267 INFO L87 Difference]: Start difference. First operand 848 states and 2157 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-01-17 23:17:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:17:10,380 INFO L93 Difference]: Finished difference Result 1372 states and 3430 transitions. [2022-01-17 23:17:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:17:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-01-17 23:17:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:17:10,384 INFO L225 Difference]: With dead ends: 1372 [2022-01-17 23:17:10,384 INFO L226 Difference]: Without dead ends: 932 [2022-01-17 23:17:10,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:17:10,389 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 63 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:17:10,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 453 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:17:10,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-01-17 23:17:10,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 792. [2022-01-17 23:17:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 2.4690265486725664) internal successors, (1953), 791 states have internal predecessors, (1953), 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) [2022-01-17 23:17:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1953 transitions. [2022-01-17 23:17:10,410 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1953 transitions. Word has length 48 [2022-01-17 23:17:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:17:10,412 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1953 transitions. [2022-01-17 23:17:10,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-01-17 23:17:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1953 transitions. [2022-01-17 23:17:10,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-17 23:17:10,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:17:10,414 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] [2022-01-17 23:17:10,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:17:10,415 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 23:17:10,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:17:10,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2040557047, now seen corresponding path program 1 times [2022-01-17 23:17:10,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:17:10,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76313355] [2022-01-17 23:17:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:17:10,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:17:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:17:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:17:10,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:17:10,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76313355] [2022-01-17 23:17:10,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76313355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:17:10,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:17:10,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:17:10,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506255231] [2022-01-17 23:17:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:17:10,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:17:10,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:17:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:17:10,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:17:10,524 INFO L87 Difference]: Start difference. First operand 792 states and 1953 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-01-17 23:17:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:17:10,642 INFO L93 Difference]: Finished difference Result 1156 states and 2786 transitions. [2022-01-17 23:17:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:17:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-01-17 23:17:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:17:10,645 INFO L225 Difference]: With dead ends: 1156 [2022-01-17 23:17:10,645 INFO L226 Difference]: Without dead ends: 716 [2022-01-17 23:17:10,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:17:10,646 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 76 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:17:10,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 402 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:17:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-01-17 23:17:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 576. [2022-01-17 23:17:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 2.3460869565217393) internal successors, (1349), 575 states have internal predecessors, (1349), 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) [2022-01-17 23:17:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1349 transitions. [2022-01-17 23:17:10,659 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1349 transitions. Word has length 48 [2022-01-17 23:17:10,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:17:10,659 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1349 transitions. [2022-01-17 23:17:10,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-01-17 23:17:10,660 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1349 transitions. [2022-01-17 23:17:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-17 23:17:10,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:17:10,661 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] [2022-01-17 23:17:10,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:17:10,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 23:17:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:17:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash -107540384, now seen corresponding path program 1 times [2022-01-17 23:17:10,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:17:10,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030684096] [2022-01-17 23:17:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:17:10,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:17:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:17:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:17:10,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:17:10,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030684096] [2022-01-17 23:17:10,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030684096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:17:10,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:17:10,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:17:10,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512512339] [2022-01-17 23:17:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:17:10,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:17:10,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:17:10,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:17:10,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:17:10,773 INFO L87 Difference]: Start difference. First operand 576 states and 1349 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-01-17 23:17:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:17:10,848 INFO L93 Difference]: Finished difference Result 608 states and 1376 transitions. [2022-01-17 23:17:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:17:10,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2022-01-17 23:17:10,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:17:10,851 INFO L225 Difference]: With dead ends: 608 [2022-01-17 23:17:10,851 INFO L226 Difference]: Without dead ends: 440 [2022-01-17 23:17:10,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:17:10,852 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 86 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:17:10,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 268 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:17:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-01-17 23:17:10,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2022-01-17 23:17:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 439 states have (on average 2.211845102505695) internal successors, (971), 439 states have internal predecessors, (971), 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) [2022-01-17 23:17:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 971 transitions. [2022-01-17 23:17:10,862 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 971 transitions. Word has length 49 [2022-01-17 23:17:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:17:10,862 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 971 transitions. [2022-01-17 23:17:10,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-01-17 23:17:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 971 transitions. [2022-01-17 23:17:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-17 23:17:10,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:17:10,864 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] [2022-01-17 23:17:10,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:17:10,865 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-17 23:17:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:17:10,867 INFO L85 PathProgramCache]: Analyzing trace with hash 84227455, now seen corresponding path program 1 times [2022-01-17 23:17:10,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:17:10,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054845782] [2022-01-17 23:17:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:17:10,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:17:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:17:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:17:11,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:17:11,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054845782] [2022-01-17 23:17:11,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054845782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:17:11,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:17:11,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:17:11,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047265740] [2022-01-17 23:17:11,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:17:11,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:17:11,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:17:11,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:17:11,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:17:11,011 INFO L87 Difference]: Start difference. First operand 440 states and 971 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-01-17 23:17:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:17:11,056 INFO L93 Difference]: Finished difference Result 257 states and 531 transitions. [2022-01-17 23:17:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-17 23:17:11,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2022-01-17 23:17:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:17:11,056 INFO L225 Difference]: With dead ends: 257 [2022-01-17 23:17:11,056 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 23:17:11,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:17:11,057 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:17:11,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 196 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:17:11,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 23:17:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 23:17:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-17 23:17:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 23:17:11,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2022-01-17 23:17:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:17:11,059 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 23:17:11,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-01-17 23:17:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 23:17:11,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 23:17:11,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-17 23:17:11,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-17 23:17:11,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-17 23:17:11,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:17:11,063 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-17 23:17:11,065 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:17:11,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:17:11,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:17:11 BasicIcfg [2022-01-17 23:17:11,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:17:11,067 INFO L158 Benchmark]: Toolchain (without parser) took 2485.05ms. Allocated memory was 392.2MB in the beginning and 620.8MB in the end (delta: 228.6MB). Free memory was 335.0MB in the beginning and 379.2MB in the end (delta: -44.2MB). Peak memory consumption was 184.7MB. Max. memory is 16.0GB. [2022-01-17 23:17:11,067 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 392.2MB. Free memory is still 352.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:17:11,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.99ms. Allocated memory was 392.2MB in the beginning and 620.8MB in the end (delta: 228.6MB). Free memory was 334.9MB in the beginning and 582.6MB in the end (delta: -247.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. [2022-01-17 23:17:11,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.59ms. Allocated memory is still 620.8MB. Free memory was 582.6MB in the beginning and 580.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:17:11,068 INFO L158 Benchmark]: Boogie Preprocessor took 11.73ms. Allocated memory is still 620.8MB. Free memory was 580.5MB in the beginning and 579.5MB in the end (delta: 995.8kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:17:11,068 INFO L158 Benchmark]: RCFGBuilder took 232.97ms. Allocated memory is still 620.8MB. Free memory was 579.5MB in the beginning and 564.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-17 23:17:11,068 INFO L158 Benchmark]: TraceAbstraction took 1878.86ms. Allocated memory is still 620.8MB. Free memory was 563.7MB in the beginning and 379.2MB in the end (delta: 184.5MB). Peak memory consumption was 184.5MB. Max. memory is 16.0GB. [2022-01-17 23:17:11,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 392.2MB. Free memory is still 352.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 333.99ms. Allocated memory was 392.2MB in the beginning and 620.8MB in the end (delta: 228.6MB). Free memory was 334.9MB in the beginning and 582.6MB in the end (delta: -247.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 22.59ms. Allocated memory is still 620.8MB. Free memory was 582.6MB in the beginning and 580.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 11.73ms. Allocated memory is still 620.8MB. Free memory was 580.5MB in the beginning and 579.5MB in the end (delta: 995.8kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 232.97ms. Allocated memory is still 620.8MB. Free memory was 579.5MB in the beginning and 564.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1878.86ms. Allocated memory is still 620.8MB. Free memory was 563.7MB in the beginning and 379.2MB in the end (delta: 184.5MB). Peak memory consumption was 184.5MB. Max. memory is 16.0GB. * 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 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 449 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 449 mSDsluCounter, 2011 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1547 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 507 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=953occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 280 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 782 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-17 23:17:11,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...