/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/thin001_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 17:22:52,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 17:22:52,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 17:22:52,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 17:22:52,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 17:22:52,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 17:22:52,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 17:22:52,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 17:22:52,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 17:22:52,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 17:22:52,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 17:22:52,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 17:22:52,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 17:22:52,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 17:22:53,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 17:22:53,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 17:22:53,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 17:22:53,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 17:22:53,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 17:22:53,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 17:22:53,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 17:22:53,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 17:22:53,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 17:22:53,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 17:22:53,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 17:22:53,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 17:22:53,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 17:22:53,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 17:22:53,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 17:22:53,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 17:22:53,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 17:22:53,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 17:22:53,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 17:22:53,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 17:22:53,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 17:22:53,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 17:22:53,032 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 [2020-12-17 17:22:53,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 17:22:53,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 17:22:53,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 17:22:53,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 17:22:53,073 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 17:22:53,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 17:22:53,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 17:22:53,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 17:22:53,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 17:22:53,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 17:22:53,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 17:22:53,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 17:22:53,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 17:22:53,075 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 17:22:53,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 17:22:53,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 17:22:53,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 17:22:53,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 17:22:53,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 17:22:53,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 17:22:53,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 17:22:53,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 17:22:53,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 17:22:53,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 17:22:53,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 17:22:53,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 17:22:53,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 17:22:53,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 17:22:53,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 17:22:53,079 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 17:22:53,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 17:22:53,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 17:22:53,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 17:22:53,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 17:22:53,567 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 17:22:53,568 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 17:22:53,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-12-17 17:22:53,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8746131c3/74da73bfb3fa4edb9941a4e3e000d766/FLAG9178def74 [2020-12-17 17:22:54,525 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 17:22:54,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.opt.i [2020-12-17 17:22:54,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8746131c3/74da73bfb3fa4edb9941a4e3e000d766/FLAG9178def74 [2020-12-17 17:22:54,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8746131c3/74da73bfb3fa4edb9941a4e3e000d766 [2020-12-17 17:22:54,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 17:22:54,782 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 17:22:54,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 17:22:54,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 17:22:54,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 17:22:54,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:54" (1/1) ... [2020-12-17 17:22:54,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c34b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:54, skipping insertion in model container [2020-12-17 17:22:54,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:54" (1/1) ... [2020-12-17 17:22:54,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 17:22:54,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 17:22:55,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 17:22:55,291 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 17:22:55,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 17:22:55,500 INFO L208 MainTranslator]: Completed translation [2020-12-17 17:22:55,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55 WrapperNode [2020-12-17 17:22:55,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 17:22:55,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 17:22:55,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 17:22:55,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 17:22:55,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 17:22:55,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 17:22:55,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 17:22:55,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 17:22:55,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (1/1) ... [2020-12-17 17:22:55,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 17:22:55,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 17:22:55,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 17:22:55,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 17:22:55,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (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 [2020-12-17 17:22:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 17:22:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 17:22:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 17:22:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 17:22:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 17:22:55,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 17:22:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 17:22:55,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 17:22:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 17:22:55,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 17:22:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 17:22:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 17:22:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 17:22:55,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 17:22:55,745 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 17:22:56,226 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 17:22:56,226 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 17:22:56,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:56 BoogieIcfgContainer [2020-12-17 17:22:56,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 17:22:56,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 17:22:56,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 17:22:56,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 17:22:56,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:22:54" (1/3) ... [2020-12-17 17:22:56,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8398e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:56, skipping insertion in model container [2020-12-17 17:22:56,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:55" (2/3) ... [2020-12-17 17:22:56,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8398e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:56, skipping insertion in model container [2020-12-17 17:22:56,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:56" (3/3) ... [2020-12-17 17:22:56,239 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2020-12-17 17:22:56,257 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 17:22:56,257 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 17:22:56,261 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 17:22:56,263 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 17:22:56,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,304 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,326 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,327 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,327 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,331 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,331 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:22:56,335 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 17:22:56,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 17:22:56,376 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 17:22:56,377 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 17:22:56,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 17:22:56,377 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 17:22:56,377 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 17:22:56,377 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 17:22:56,378 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 17:22:56,378 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 17:22:56,391 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-12-17 17:22:57,282 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-12-17 17:22:57,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-12-17 17:22:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 17:22:57,379 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:57,380 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] [2020-12-17 17:22:57,381 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:57,388 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2020-12-17 17:22:57,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:57,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545664305] [2020-12-17 17:22:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:58,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545664305] [2020-12-17 17:22:58,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:58,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 17:22:58,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925998060] [2020-12-17 17:22:58,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 17:22:58,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:58,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 17:22:58,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 17:22:58,107 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-12-17 17:22:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:58,522 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2020-12-17 17:22:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 17:22:58,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2020-12-17 17:22:58,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:58,657 INFO L225 Difference]: With dead ends: 12201 [2020-12-17 17:22:58,657 INFO L226 Difference]: Without dead ends: 4606 [2020-12-17 17:22:58,664 INFO L763 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 [2020-12-17 17:22:58,665 INFO L78 Accepts]: Start accepts. Automaton has 4606 states. Word has length 43 [2020-12-17 17:22:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:58,671 INFO L481 AbstractCegarLoop]: Abstraction has 4606 states. [2020-12-17 17:22:58,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-12-17 17:22:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states. [2020-12-17 17:22:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 17:22:58,690 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:58,690 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:58,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 17:22:58,691 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2020-12-17 17:22:58,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:58,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308762212] [2020-12-17 17:22:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:58,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308762212] [2020-12-17 17:22:58,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:58,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:58,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783132506] [2020-12-17 17:22:58,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:58,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:58,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:58,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:58,972 INFO L87 Difference]: Start difference. First operand 4606 states. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:22:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:59,231 INFO L93 Difference]: Finished difference Result 5726 states and 19296 transitions. [2020-12-17 17:22:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 17:22:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-12-17 17:22:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:59,257 INFO L225 Difference]: With dead ends: 5726 [2020-12-17 17:22:59,257 INFO L226 Difference]: Without dead ends: 2871 [2020-12-17 17:22:59,258 INFO L763 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 [2020-12-17 17:22:59,259 INFO L78 Accepts]: Start accepts. Automaton has 2871 states. Word has length 45 [2020-12-17 17:22:59,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:59,259 INFO L481 AbstractCegarLoop]: Abstraction has 2871 states. [2020-12-17 17:22:59,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:22:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states. [2020-12-17 17:22:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 17:22:59,272 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:59,272 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:59,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 17:22:59,273 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:59,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:59,273 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2020-12-17 17:22:59,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:59,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495586870] [2020-12-17 17:22:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495586870] [2020-12-17 17:22:59,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:59,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:59,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196654543] [2020-12-17 17:22:59,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:59,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:59,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:59,527 INFO L87 Difference]: Start difference. First operand 2871 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:22:59,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:22:59,725 INFO L93 Difference]: Finished difference Result 3791 states and 12381 transitions. [2020-12-17 17:22:59,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 17:22:59,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 17:22:59,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:22:59,741 INFO L225 Difference]: With dead ends: 3791 [2020-12-17 17:22:59,741 INFO L226 Difference]: Without dead ends: 1761 [2020-12-17 17:22:59,741 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-17 17:22:59,742 INFO L78 Accepts]: Start accepts. Automaton has 1761 states. Word has length 48 [2020-12-17 17:22:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:22:59,742 INFO L481 AbstractCegarLoop]: Abstraction has 1761 states. [2020-12-17 17:22:59,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:22:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states. [2020-12-17 17:22:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 17:22:59,749 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:22:59,749 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:22:59,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 17:22:59,749 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:22:59,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:22:59,750 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2020-12-17 17:22:59,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:22:59,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836663466] [2020-12-17 17:22:59,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:22:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:22:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:22:59,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836663466] [2020-12-17 17:22:59,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:22:59,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 17:22:59,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399341721] [2020-12-17 17:22:59,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 17:22:59,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:22:59,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 17:22:59,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 17:22:59,934 INFO L87 Difference]: Start difference. First operand 1761 states. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:23:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:23:00,162 INFO L93 Difference]: Finished difference Result 1441 states and 4503 transitions. [2020-12-17 17:23:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 17:23:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-12-17 17:23:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:23:00,164 INFO L225 Difference]: With dead ends: 1441 [2020-12-17 17:23:00,164 INFO L226 Difference]: Without dead ends: 0 [2020-12-17 17:23:00,165 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-17 17:23:00,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 51 [2020-12-17 17:23:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:23:00,165 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2020-12-17 17:23:00,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:23:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2020-12-17 17:23:00,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 17:23:00,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 17:23:00,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:23:00 BasicIcfg [2020-12-17 17:23:00,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 17:23:00,176 INFO L168 Benchmark]: Toolchain (without parser) took 5392.02 ms. Allocated memory was 304.1 MB in the beginning and 792.7 MB in the end (delta: 488.6 MB). Free memory was 278.2 MB in the beginning and 697.9 MB in the end (delta: -419.7 MB). Peak memory consumption was 71.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:23:00,177 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 304.1 MB. Free memory was 275.2 MB in the beginning and 275.1 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 17:23:00,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.48 ms. Allocated memory is still 304.1 MB. Free memory was 278.1 MB in the beginning and 278.9 MB in the end (delta: -797.4 kB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. [2020-12-17 17:23:00,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.12 ms. Allocated memory is still 304.1 MB. Free memory was 278.9 MB in the beginning and 276.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 17:23:00,185 INFO L168 Benchmark]: Boogie Preprocessor took 49.51 ms. Allocated memory is still 304.1 MB. Free memory was 276.8 MB in the beginning and 275.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:23:00,192 INFO L168 Benchmark]: RCFGBuilder took 580.35 ms. Allocated memory is still 304.1 MB. Free memory was 275.7 MB in the beginning and 251.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:23:00,194 INFO L168 Benchmark]: TraceAbstraction took 3941.65 ms. Allocated memory was 304.1 MB in the beginning and 792.7 MB in the end (delta: 488.6 MB). Free memory was 251.6 MB in the beginning and 697.9 MB in the end (delta: -446.3 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.0 GB. [2020-12-17 17:23:00,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 304.1 MB. Free memory was 275.2 MB in the beginning and 275.1 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 718.48 ms. Allocated memory is still 304.1 MB. Free memory was 278.1 MB in the beginning and 278.9 MB in the end (delta: -797.4 kB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 93.12 ms. Allocated memory is still 304.1 MB. Free memory was 278.9 MB in the beginning and 276.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 49.51 ms. Allocated memory is still 304.1 MB. Free memory was 276.8 MB in the beginning and 275.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 580.35 ms. Allocated memory is still 304.1 MB. Free memory was 275.7 MB in the beginning and 251.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3941.65 ms. Allocated memory was 304.1 MB in the beginning and 792.7 MB in the end (delta: 488.6 MB). Free memory was 251.6 MB in the beginning and 697.9 MB in the end (delta: -446.3 MB). Peak memory consumption was 43.4 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 406 SDtfs, 616 SDslu, 1282 SDs, 0 SdLazy, 99 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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, 0.9s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...