/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:28:13,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:28:13,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:28:13,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:28:13,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:28:13,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:28:13,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:28:13,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:28:13,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:28:13,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:28:13,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:28:13,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:28:13,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:28:13,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:28:13,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:28:13,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:28:13,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:28:13,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:28:13,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:28:13,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:28:13,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:28:13,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:28:13,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:28:13,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:28:13,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:28:13,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:28:13,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:28:13,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:28:13,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:28:13,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:28:13,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:28:13,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:28:13,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:28:13,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:28:13,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:28:13,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:28:13,855 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-keepdead.epf [2021-01-20 21:28:13,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:28:13,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:28:13,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:28:13,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:28:13,918 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:28:13,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:28:13,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:28:13,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:28:13,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:28:13,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:28:13,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:28:13,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:28:13,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:28:13,921 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:28:13,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:28:13,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:28:13,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:28:13,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:28:13,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:28:13,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:28:13,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:28:13,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:28:13,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:28:13,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:28:13,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:28:13,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:28:13,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:28:13,924 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:28:13,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:28:13,925 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:28:13,925 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:28:13,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:28:14,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:28:14,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:28:14,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:28:14,388 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:28:14,389 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:28:14,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2021-01-20 21:28:14,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c852c255/f39fb9f2241045099b222a79e4901991/FLAGa181dd99e [2021-01-20 21:28:15,135 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:28:15,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2021-01-20 21:28:15,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c852c255/f39fb9f2241045099b222a79e4901991/FLAGa181dd99e [2021-01-20 21:28:15,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c852c255/f39fb9f2241045099b222a79e4901991 [2021-01-20 21:28:15,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:28:15,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:28:15,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:28:15,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:28:15,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:28:15,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:28:15" (1/1) ... [2021-01-20 21:28:15,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e9d2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:15, skipping insertion in model container [2021-01-20 21:28:15,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:28:15" (1/1) ... [2021-01-20 21:28:15,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:28:15,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:28:15,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:28:15,976 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:28:16,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:28:16,234 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:28:16,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16 WrapperNode [2021-01-20 21:28:16,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:28:16,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:28:16,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:28:16,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:28:16,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:28:16,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:28:16,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:28:16,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:28:16,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... [2021-01-20 21:28:16,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:28:16,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:28:16,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:28:16,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:28:16,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:28:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:28:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:28:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:28:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:28:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:28:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:28:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:28:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:28:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:28:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:28:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:28:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:28:16,482 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:28:17,093 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:28:17,093 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:28:17,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:28:17 BoogieIcfgContainer [2021-01-20 21:28:17,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:28:17,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:28:17,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:28:17,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:28:17,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:28:15" (1/3) ... [2021-01-20 21:28:17,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ca83fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:28:17, skipping insertion in model container [2021-01-20 21:28:17,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:16" (2/3) ... [2021-01-20 21:28:17,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ca83fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:28:17, skipping insertion in model container [2021-01-20 21:28:17,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:28:17" (3/3) ... [2021-01-20 21:28:17,107 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2021-01-20 21:28:17,126 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:28:17,126 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:28:17,130 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:28:17,131 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:28:17,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,175 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,175 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,196 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,196 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,196 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:17,199 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:28:17,213 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 21:28:17,252 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:28:17,252 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:28:17,252 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:28:17,253 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:28:17,253 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:28:17,253 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:28:17,253 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:28:17,253 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:28:17,267 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-20 21:28:17,368 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2021-01-20 21:28:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2021-01-20 21:28:17,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 21:28:17,396 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:17,397 INFO L504 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] [2021-01-20 21:28:17,398 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:17,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:17,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1361290816, now seen corresponding path program 1 times [2021-01-20 21:28:17,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:17,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296737834] [2021-01-20 21:28:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:17,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296737834] [2021-01-20 21:28:17,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:17,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:28:17,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939080374] [2021-01-20 21:28:17,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:28:17,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:17,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:28:17,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:28:17,920 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-01-20 21:28:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:18,338 INFO L93 Difference]: Finished difference Result 1116 states and 2790 transitions. [2021-01-20 21:28:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:28:18,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-01-20 21:28:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:18,343 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:18,343 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 2790 transitions. Word has length 37 [2021-01-20 21:28:18,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:18,344 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 2790 transitions. [2021-01-20 21:28:18,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-01-20 21:28:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 2790 transitions. [2021-01-20 21:28:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 21:28:18,353 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:18,353 INFO L504 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] [2021-01-20 21:28:18,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:28:18,354 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:18,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:18,355 INFO L82 PathProgramCache]: Analyzing trace with hash 160702942, now seen corresponding path program 1 times [2021-01-20 21:28:18,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:18,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875824269] [2021-01-20 21:28:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:18,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875824269] [2021-01-20 21:28:18,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:18,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:18,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731253867] [2021-01-20 21:28:18,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:18,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:18,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:18,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:18,643 INFO L87 Difference]: Start difference. First operand 1116 states and 2790 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-01-20 21:28:18,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:18,925 INFO L93 Difference]: Finished difference Result 753 states and 1798 transitions. [2021-01-20 21:28:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:28:18,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-01-20 21:28:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:18,928 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:28:18,929 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1798 transitions. Word has length 41 [2021-01-20 21:28:18,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:18,929 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 1798 transitions. [2021-01-20 21:28:18,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-01-20 21:28:18,930 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1798 transitions. [2021-01-20 21:28:18,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:28:18,933 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:18,933 INFO L504 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] [2021-01-20 21:28:18,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:28:18,934 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:18,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:18,935 INFO L82 PathProgramCache]: Analyzing trace with hash 96714268, now seen corresponding path program 1 times [2021-01-20 21:28:18,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:18,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165278093] [2021-01-20 21:28:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:19,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165278093] [2021-01-20 21:28:19,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:19,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:19,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10839015] [2021-01-20 21:28:19,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:19,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:19,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:19,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:19,105 INFO L87 Difference]: Start difference. First operand 753 states and 1798 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-01-20 21:28:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:19,237 INFO L93 Difference]: Finished difference Result 1145 states and 2711 transitions. [2021-01-20 21:28:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:28:19,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 [2021-01-20 21:28:19,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:19,239 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:19,239 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 2711 transitions. Word has length 45 [2021-01-20 21:28:19,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:19,241 INFO L481 AbstractCegarLoop]: Abstraction has 1145 states and 2711 transitions. [2021-01-20 21:28:19,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-01-20 21:28:19,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 2711 transitions. [2021-01-20 21:28:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:28:19,245 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:19,246 INFO L504 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] [2021-01-20 21:28:19,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:28:19,246 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:19,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:19,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1383140064, now seen corresponding path program 2 times [2021-01-20 21:28:19,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:19,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992004553] [2021-01-20 21:28:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:19,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992004553] [2021-01-20 21:28:19,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:19,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:19,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544098137] [2021-01-20 21:28:19,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:19,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:19,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:19,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:19,456 INFO L87 Difference]: Start difference. First operand 1145 states and 2711 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-01-20 21:28:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:19,603 INFO L93 Difference]: Finished difference Result 1501 states and 3540 transitions. [2021-01-20 21:28:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:28:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 [2021-01-20 21:28:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:19,607 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:19,608 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 3540 transitions. Word has length 45 [2021-01-20 21:28:19,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:19,608 INFO L481 AbstractCegarLoop]: Abstraction has 1501 states and 3540 transitions. [2021-01-20 21:28:19,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-01-20 21:28:19,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 3540 transitions. [2021-01-20 21:28:19,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:28:19,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:28:19,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:28:19 BasicIcfg [2021-01-20 21:28:19,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:28:19,623 INFO L168 Benchmark]: Toolchain (without parser) took 4180.31 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 249.0 MB in the end (delta: 26.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:19,623 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:28:19,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.74 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:19,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.59 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:19,629 INFO L168 Benchmark]: Boogie Preprocessor took 58.81 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:19,632 INFO L168 Benchmark]: RCFGBuilder took 725.02 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 252.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:19,637 INFO L168 Benchmark]: TraceAbstraction took 2519.37 ms. Allocated memory is still 302.0 MB. Free memory was 251.6 MB in the beginning and 249.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:19,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 792.74 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.59 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.81 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 725.02 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 252.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2519.37 ms. Allocated memory is still 302.0 MB. Free memory was 251.6 MB in the beginning and 249.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 334 SDtfs, 452 SDslu, 1182 SDs, 0 SdLazy, 132 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1501occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 16640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...