/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:51:08,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:51:08,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:51:08,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:51:08,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:51:08,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:51:08,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:51:08,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:51:08,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:51:08,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:51:08,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:51:08,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:51:08,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:51:08,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:51:08,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:51:08,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:51:08,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:51:08,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:51:08,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:51:08,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:51:08,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:51:08,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:51:08,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:51:08,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:51:08,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:51:08,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:51:08,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:51:08,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:51:08,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:51:08,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:51:08,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:51:08,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:51:08,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:51:08,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:51:08,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:51:08,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:51:08,729 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 [2021-01-20 14:51:08,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:51:08,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:51:08,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:51:08,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:51:08,778 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:51:08,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:51:08,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:51:08,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:51:08,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:51:08,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:51:08,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:51:08,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:51:08,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:51:08,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:51:08,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:51:08,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:51:08,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:51:08,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:51:08,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:51:08,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:51:08,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:51:08,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:51:08,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:51:08,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:51:08,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:51:08,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:51:08,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:51:08,788 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:51:08,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:51:08,788 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:51:08,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:51:09,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:51:09,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:51:09,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:51:09,201 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:51:09,202 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:51:09,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-01-20 14:51:09,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cff1947/e3d4ecac77f4442cb684a81f5ac5e541/FLAG282103b3a [2021-01-20 14:51:10,148 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:51:10,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-01-20 14:51:10,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cff1947/e3d4ecac77f4442cb684a81f5ac5e541/FLAG282103b3a [2021-01-20 14:51:10,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cff1947/e3d4ecac77f4442cb684a81f5ac5e541 [2021-01-20 14:51:10,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:51:10,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:51:10,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:51:10,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:51:10,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:51:10,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:10,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11797d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10, skipping insertion in model container [2021-01-20 14:51:10,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:10,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:51:10,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:51:10,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:51:10,813 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:51:10,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:51:10,986 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:51:10,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10 WrapperNode [2021-01-20 14:51:10,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:51:10,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:51:10,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:51:10,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:51:10,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:51:11,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:51:11,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:51:11,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:51:11,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (1/1) ... [2021-01-20 14:51:11,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:51:11,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:51:11,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:51:11,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:51:11,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (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 14:51:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:51:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:51:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:51:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:51:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:51:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:51:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:51:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:51:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:51:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:51:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:51:11,163 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 14:51:11,537 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:51:11,537 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:51:11,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:51:11 BoogieIcfgContainer [2021-01-20 14:51:11,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:51:11,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:51:11,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:51:11,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:51:11,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:51:10" (1/3) ... [2021-01-20 14:51:11,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccf225e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:51:11, skipping insertion in model container [2021-01-20 14:51:11,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:10" (2/3) ... [2021-01-20 14:51:11,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccf225e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:51:11, skipping insertion in model container [2021-01-20 14:51:11,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:51:11" (3/3) ... [2021-01-20 14:51:11,550 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2021-01-20 14:51:11,567 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:51:11,568 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:51:11,571 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:51:11,572 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:51:11,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,610 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,612 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,613 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,613 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,614 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,614 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,625 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,625 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,626 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:11,628 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:51:11,642 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 14:51:11,671 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:51:11,671 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:51:11,671 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:51:11,672 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:51:11,672 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:51:11,672 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:51:11,672 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:51:11,672 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:51:11,685 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2021-01-20 14:51:11,811 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) [2021-01-20 14:51:11,818 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) [2021-01-20 14:51:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-20 14:51:11,841 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:11,842 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] [2021-01-20 14:51:11,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:11,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1850588041, now seen corresponding path program 1 times [2021-01-20 14:51:11,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:11,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720287207] [2021-01-20 14:51:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:12,344 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 14:51:12,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720287207] [2021-01-20 14:51:12,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:12,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:51:12,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982272208] [2021-01-20 14:51:12,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:51:12,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:12,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:51:12,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:51:12,380 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) [2021-01-20 14:51:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:12,607 INFO L93 Difference]: Finished difference Result 1714 states and 4478 transitions. [2021-01-20 14:51:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:51:12,609 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 [2021-01-20 14:51:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:12,631 INFO L225 Difference]: With dead ends: 1714 [2021-01-20 14:51:12,631 INFO L226 Difference]: Without dead ends: 733 [2021-01-20 14:51:12,633 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:12,634 INFO L78 Accepts]: Start accepts. Automaton has 733 states. Word has length 36 [2021-01-20 14:51:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:12,636 INFO L481 AbstractCegarLoop]: Abstraction has 733 states. [2021-01-20 14:51:12,636 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) [2021-01-20 14:51:12,636 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states. [2021-01-20 14:51:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 14:51:12,643 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:12,643 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] [2021-01-20 14:51:12,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:51:12,644 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:12,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:12,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1562684454, now seen corresponding path program 1 times [2021-01-20 14:51:12,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:12,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935220877] [2021-01-20 14:51:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:12,928 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 14:51:12,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935220877] [2021-01-20 14:51:12,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:12,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:51:12,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989114652] [2021-01-20 14:51:12,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:51:12,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:12,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:51:12,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:51:12,937 INFO L87 Difference]: Start difference. First operand 733 states. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2021-01-20 14:51:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:13,107 INFO L93 Difference]: Finished difference Result 769 states and 1891 transitions. [2021-01-20 14:51:13,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:51:13,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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 [2021-01-20 14:51:13,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:13,112 INFO L225 Difference]: With dead ends: 769 [2021-01-20 14:51:13,112 INFO L226 Difference]: Without dead ends: 573 [2021-01-20 14:51:13,113 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 14:51:13,114 INFO L78 Accepts]: Start accepts. Automaton has 573 states. Word has length 38 [2021-01-20 14:51:13,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:13,114 INFO L481 AbstractCegarLoop]: Abstraction has 573 states. [2021-01-20 14:51:13,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2021-01-20 14:51:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states. [2021-01-20 14:51:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-20 14:51:13,117 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:13,117 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] [2021-01-20 14:51:13,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:51:13,117 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:13,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:13,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1629268999, now seen corresponding path program 1 times [2021-01-20 14:51:13,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:13,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991741364] [2021-01-20 14:51:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:13,273 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 14:51:13,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991741364] [2021-01-20 14:51:13,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:13,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:51:13,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105867479] [2021-01-20 14:51:13,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:51:13,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:13,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:51:13,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:51:13,282 INFO L87 Difference]: Start difference. First operand 573 states. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 14:51:13,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:13,440 INFO L93 Difference]: Finished difference Result 907 states and 2168 transitions. [2021-01-20 14:51:13,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:51:13,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-01-20 14:51:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:13,445 INFO L225 Difference]: With dead ends: 907 [2021-01-20 14:51:13,445 INFO L226 Difference]: Without dead ends: 621 [2021-01-20 14:51:13,446 INFO L769 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 [2021-01-20 14:51:13,446 INFO L78 Accepts]: Start accepts. Automaton has 621 states. Word has length 40 [2021-01-20 14:51:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:13,446 INFO L481 AbstractCegarLoop]: Abstraction has 621 states. [2021-01-20 14:51:13,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 14:51:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states. [2021-01-20 14:51:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-20 14:51:13,449 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:13,449 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] [2021-01-20 14:51:13,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:51:13,449 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:13,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:13,450 INFO L82 PathProgramCache]: Analyzing trace with hash 252127285, now seen corresponding path program 1 times [2021-01-20 14:51:13,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:13,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432089301] [2021-01-20 14:51:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:13,579 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 14:51:13,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432089301] [2021-01-20 14:51:13,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:13,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:13,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61321922] [2021-01-20 14:51:13,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:13,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:13,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:13,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:13,582 INFO L87 Difference]: Start difference. First operand 621 states. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 14:51:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:13,762 INFO L93 Difference]: Finished difference Result 393 states and 869 transitions. [2021-01-20 14:51:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:51:13,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2021-01-20 14:51:13,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:13,765 INFO L225 Difference]: With dead ends: 393 [2021-01-20 14:51:13,765 INFO L226 Difference]: Without dead ends: 211 [2021-01-20 14:51:13,766 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:51:13,766 INFO L78 Accepts]: Start accepts. Automaton has 211 states. Word has length 40 [2021-01-20 14:51:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:13,766 INFO L481 AbstractCegarLoop]: Abstraction has 211 states. [2021-01-20 14:51:13,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 14:51:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2021-01-20 14:51:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:51:13,768 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:13,768 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] [2021-01-20 14:51:13,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:51:13,768 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:13,769 INFO L82 PathProgramCache]: Analyzing trace with hash -163535177, now seen corresponding path program 1 times [2021-01-20 14:51:13,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:13,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152520574] [2021-01-20 14:51:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:13,877 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 14:51:13,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152520574] [2021-01-20 14:51:13,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:13,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:13,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12815054] [2021-01-20 14:51:13,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:13,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:13,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:13,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:13,880 INFO L87 Difference]: Start difference. First operand 211 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2021-01-20 14:51:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:13,960 INFO L93 Difference]: Finished difference Result 175 states and 361 transitions. [2021-01-20 14:51:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:51:13,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 [2021-01-20 14:51:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:13,961 INFO L225 Difference]: With dead ends: 175 [2021-01-20 14:51:13,961 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:51:13,962 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 14:51:13,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 44 [2021-01-20 14:51:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:13,962 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:51:13,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2021-01-20 14:51:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:51:13,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:51:13,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:51:13,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:51:13 BasicIcfg [2021-01-20 14:51:13,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:51:13,971 INFO L168 Benchmark]: Toolchain (without parser) took 3587.99 ms. Allocated memory was 302.0 MB in the beginning and 427.8 MB in the end (delta: 125.8 MB). Free memory was 276.5 MB in the beginning and 370.1 MB in the end (delta: -93.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:13,972 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:51:13,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.07 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 273.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:13,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:51:13,974 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 270.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:13,975 INFO L168 Benchmark]: RCFGBuilder took 470.24 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 250.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:13,976 INFO L168 Benchmark]: TraceAbstraction took 2427.50 ms. Allocated memory was 302.0 MB in the beginning and 427.8 MB in the end (delta: 125.8 MB). Free memory was 250.3 MB in the beginning and 370.1 MB in the end (delta: -119.7 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:13,980 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 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 602.07 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 273.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 270.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 470.24 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 250.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2427.50 ms. Allocated memory was 302.0 MB in the beginning and 427.8 MB in the end (delta: 125.8 MB). Free memory was 250.3 MB in the beginning and 370.1 MB in the end (delta: -119.7 MB). Peak memory consumption was 6.1 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 360 SDtfs, 425 SDslu, 1124 SDs, 0 SdLazy, 147 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 19259 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...