/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:06:33,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:06:33,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:06:33,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:06:33,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:06:33,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:06:33,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:06:33,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:06:33,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:06:33,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:06:33,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:06:33,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:06:33,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:06:33,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:06:33,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:06:33,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:06:33,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:06:33,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:06:33,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:06:33,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:06:33,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:06:33,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:06:33,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:06:33,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:06:33,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:06:33,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:06:33,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:06:33,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:06:33,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:06:33,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:06:33,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:06:33,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:06:33,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:06:33,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:06:33,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:06:33,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:06:33,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:06:33,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:06:33,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:06:33,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:06:33,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:06:33,744 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 [2020-11-11 18:06:33,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:06:33,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:06:33,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:06:33,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:06:33,803 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:06:33,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:06:33,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:06:33,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:06:33,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:06:33,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:06:33,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:06:33,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:06:33,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:06:33,806 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:06:33,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:06:33,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:06:33,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:06:33,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:06:33,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:06:33,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:06:33,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:06:33,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:06:33,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:06:33,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:06:33,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:06:33,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:06:33,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:06:33,810 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:06:33,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:06:33,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:06:34,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:06:34,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:06:34,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:06:34,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:06:34,217 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:06:34,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-11-11 18:06:34,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b8c6419/a0f75a60fe334b85940fda3c27c0eb86/FLAG3d1c0b042 [2020-11-11 18:06:35,129 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:06:35,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-11-11 18:06:35,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b8c6419/a0f75a60fe334b85940fda3c27c0eb86/FLAG3d1c0b042 [2020-11-11 18:06:35,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b8c6419/a0f75a60fe334b85940fda3c27c0eb86 [2020-11-11 18:06:35,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:06:35,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:06:35,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:06:35,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:06:35,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:06:35,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:06:35" (1/1) ... [2020-11-11 18:06:35,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b337ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:35, skipping insertion in model container [2020-11-11 18:06:35,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:06:35" (1/1) ... [2020-11-11 18:06:35,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:06:35,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:06:35,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:06:35,888 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:06:35,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:06:36,048 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:06:36,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36 WrapperNode [2020-11-11 18:06:36,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:06:36,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:06:36,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:06:36,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:06:36,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:06:36,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:06:36,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:06:36,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:06:36,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (1/1) ... [2020-11-11 18:06:36,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:06:36,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:06:36,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:06:36,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:06:36,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (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 [2020-11-11 18:06:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:06:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:06:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:06:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:06:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:06:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:06:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:06:36,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:06:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:06:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:06:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:06:36,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:06:36,273 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:06:36,861 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:06:36,861 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:06:36,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:06:36 BoogieIcfgContainer [2020-11-11 18:06:36,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:06:36,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:06:36,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:06:36,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:06:36,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:06:35" (1/3) ... [2020-11-11 18:06:36,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c395c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:06:36, skipping insertion in model container [2020-11-11 18:06:36,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:06:36" (2/3) ... [2020-11-11 18:06:36,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c395c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:06:36, skipping insertion in model container [2020-11-11 18:06:36,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:06:36" (3/3) ... [2020-11-11 18:06:36,877 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-11-11 18:06:36,896 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:06:36,896 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:06:36,900 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:06:36,902 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:06:36,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,948 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,948 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,953 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,961 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,962 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,962 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:06:36,965 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:06:36,978 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 18:06:37,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:06:37,017 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:06:37,017 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:06:37,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:06:37,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:06:37,019 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:06:37,019 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:06:37,020 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:06:37,036 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-11-11 18:06:37,146 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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) [2020-11-11 18:06:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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) [2020-11-11 18:06:37,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-11 18:06:37,187 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:06:37,188 INFO L494 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] [2020-11-11 18:06:37,188 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:06:37,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:06:37,196 INFO L82 PathProgramCache]: Analyzing trace with hash 2018155564, now seen corresponding path program 1 times [2020-11-11 18:06:37,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:06:37,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486670937] [2020-11-11 18:06:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:06:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:06:37,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:06:37,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486670937] [2020-11-11 18:06:37,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:06:37,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:06:37,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750434002] [2020-11-11 18:06:37,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:06:37,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:06:37,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:06:37,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:06:37,748 INFO L87 Difference]: Start difference. First operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2020-11-11 18:06:37,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:06:37,961 INFO L93 Difference]: Finished difference Result 1586 states and 4134 transitions. [2020-11-11 18:06:37,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:06:37,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2020-11-11 18:06:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:06:37,984 INFO L225 Difference]: With dead ends: 1586 [2020-11-11 18:06:37,985 INFO L226 Difference]: Without dead ends: 669 [2020-11-11 18:06:37,986 INFO L749 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 [2020-11-11 18:06:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-11-11 18:06:38,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2020-11-11 18:06:38,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 668 states have (on average 2.538922155688623) internal successors, (1696), 668 states have internal predecessors, (1696), 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) [2020-11-11 18:06:38,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1696 transitions. [2020-11-11 18:06:38,109 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1696 transitions. Word has length 36 [2020-11-11 18:06:38,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:06:38,110 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1696 transitions. [2020-11-11 18:06:38,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2020-11-11 18:06:38,111 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1696 transitions. [2020-11-11 18:06:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-11 18:06:38,115 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:06:38,116 INFO L494 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] [2020-11-11 18:06:38,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:06:38,118 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:06:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:06:38,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1725393197, now seen corresponding path program 1 times [2020-11-11 18:06:38,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:06:38,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165565849] [2020-11-11 18:06:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:06:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:06:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:06:38,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165565849] [2020-11-11 18:06:38,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:06:38,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:06:38,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833412898] [2020-11-11 18:06:38,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:06:38,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:06:38,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:06:38,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:06:38,334 INFO L87 Difference]: Start difference. First operand 669 states and 1696 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2020-11-11 18:06:38,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:06:38,521 INFO L93 Difference]: Finished difference Result 829 states and 2069 transitions. [2020-11-11 18:06:38,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:06:38,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 38 [2020-11-11 18:06:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:06:38,526 INFO L225 Difference]: With dead ends: 829 [2020-11-11 18:06:38,526 INFO L226 Difference]: Without dead ends: 444 [2020-11-11 18:06:38,527 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:06:38,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-11-11 18:06:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2020-11-11 18:06:38,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 2.3927765237020315) internal successors, (1060), 443 states have internal predecessors, (1060), 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) [2020-11-11 18:06:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1060 transitions. [2020-11-11 18:06:38,547 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1060 transitions. Word has length 38 [2020-11-11 18:06:38,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:06:38,548 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 1060 transitions. [2020-11-11 18:06:38,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2020-11-11 18:06:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1060 transitions. [2020-11-11 18:06:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-11 18:06:38,550 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:06:38,550 INFO L494 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] [2020-11-11 18:06:38,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:06:38,551 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:06:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:06:38,552 INFO L82 PathProgramCache]: Analyzing trace with hash -2141062468, now seen corresponding path program 1 times [2020-11-11 18:06:38,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:06:38,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899760678] [2020-11-11 18:06:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:06:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:06:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:06:38,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899760678] [2020-11-11 18:06:38,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:06:38,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:06:38,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939534709] [2020-11-11 18:06:38,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:06:38,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:06:38,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:06:38,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:06:38,686 INFO L87 Difference]: Start difference. First operand 444 states and 1060 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2020-11-11 18:06:38,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:06:38,824 INFO L93 Difference]: Finished difference Result 514 states and 1205 transitions. [2020-11-11 18:06:38,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:06:38,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 [2020-11-11 18:06:38,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:06:38,828 INFO L225 Difference]: With dead ends: 514 [2020-11-11 18:06:38,828 INFO L226 Difference]: Without dead ends: 378 [2020-11-11 18:06:38,828 INFO L749 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 [2020-11-11 18:06:38,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-11-11 18:06:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2020-11-11 18:06:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 2.326259946949602) internal successors, (877), 377 states have internal predecessors, (877), 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) [2020-11-11 18:06:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 877 transitions. [2020-11-11 18:06:38,843 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 877 transitions. Word has length 41 [2020-11-11 18:06:38,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:06:38,844 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 877 transitions. [2020-11-11 18:06:38,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2020-11-11 18:06:38,844 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 877 transitions. [2020-11-11 18:06:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:06:38,846 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:06:38,846 INFO L494 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] [2020-11-11 18:06:38,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:06:38,846 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:06:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:06:38,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1222811651, now seen corresponding path program 1 times [2020-11-11 18:06:38,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:06:38,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125384004] [2020-11-11 18:06:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:06:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:06:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:06:39,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125384004] [2020-11-11 18:06:39,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:06:39,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:06:39,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102683651] [2020-11-11 18:06:39,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:06:39,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:06:39,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:06:39,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:06:39,048 INFO L87 Difference]: Start difference. First operand 378 states and 877 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2020-11-11 18:06:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:06:39,218 INFO L93 Difference]: Finished difference Result 327 states and 720 transitions. [2020-11-11 18:06:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:06:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2020-11-11 18:06:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:06:39,220 INFO L225 Difference]: With dead ends: 327 [2020-11-11 18:06:39,221 INFO L226 Difference]: Without dead ends: 231 [2020-11-11 18:06:39,221 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:06:39,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-11 18:06:39,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-11-11 18:06:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 2.108695652173913) internal successors, (485), 230 states have internal predecessors, (485), 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) [2020-11-11 18:06:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 485 transitions. [2020-11-11 18:06:39,230 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 485 transitions. Word has length 42 [2020-11-11 18:06:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:06:39,231 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 485 transitions. [2020-11-11 18:06:39,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2020-11-11 18:06:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 485 transitions. [2020-11-11 18:06:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:06:39,232 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:06:39,232 INFO L494 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] [2020-11-11 18:06:39,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:06:39,233 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:06:39,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:06:39,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1089745218, now seen corresponding path program 1 times [2020-11-11 18:06:39,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:06:39,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858423287] [2020-11-11 18:06:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:06:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:06:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:06:39,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858423287] [2020-11-11 18:06:39,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:06:39,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:06:39,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066799607] [2020-11-11 18:06:39,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:06:39,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:06:39,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:06:39,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:06:39,346 INFO L87 Difference]: Start difference. First operand 231 states and 485 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-11 18:06:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:06:39,410 INFO L93 Difference]: Finished difference Result 195 states and 401 transitions. [2020-11-11 18:06:39,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 18:06:39,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2020-11-11 18:06:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:06:39,411 INFO L225 Difference]: With dead ends: 195 [2020-11-11 18:06:39,411 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:06:39,411 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-11 18:06:39,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:06:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:06:39,412 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) [2020-11-11 18:06:39,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:06:39,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-11 18:06:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:06:39,413 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:06:39,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-11 18:06:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:06:39,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:06:39,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:06:39,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:06:39 BasicIcfg [2020-11-11 18:06:39,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:06:39,422 INFO L168 Benchmark]: Toolchain (without parser) took 4087.98 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.7 MB in the beginning and 285.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:06:39,422 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:06:39,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.25 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.8 MB in the end (delta: 30.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:06:39,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 244.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:06:39,425 INFO L168 Benchmark]: Boogie Preprocessor took 29.05 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 242.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:06:39,426 INFO L168 Benchmark]: RCFGBuilder took 720.95 ms. Allocated memory is still 302.0 MB. Free memory was 242.7 MB in the beginning and 265.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2020-11-11 18:06:39,427 INFO L168 Benchmark]: TraceAbstraction took 2549.77 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 265.4 MB in the beginning and 285.5 MB in the end (delta: -20.1 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.0 GB. [2020-11-11 18:06:39,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 705.25 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.8 MB in the end (delta: 30.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 244.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.05 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 242.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 720.95 ms. Allocated memory is still 302.0 MB. Free memory was 242.7 MB in the beginning and 265.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2549.77 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 265.4 MB in the beginning and 285.5 MB in the end (delta: -20.1 MB). Peak memory consumption was 43.8 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, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 340 SDtfs, 438 SDslu, 1042 SDs, 0 SdLazy, 139 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1320occurred in iteration=0, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 20970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...