/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:50:41,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:50:41,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:50:41,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:50:42,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:50:42,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:50:42,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:50:42,012 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 [2021-07-09 16:50:42,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:50:42,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:50:42,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:50:42,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:50:42,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:50:42,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:50:42,043 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:50:42,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:50:42,044 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:50:42,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:50:42,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:50:42,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:50:42,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:50:42,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:50:42,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:50:42,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:50:42,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:50:42,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:50:42,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:50:42,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:50:42,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:50:42,319 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:50:42,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-07-09 16:50:42,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6d5f1f94/073ef4be1712421399e3fb4c71edc7d6/FLAG2038a6097 [2021-07-09 16:50:42,772 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:50:42,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-07-09 16:50:42,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6d5f1f94/073ef4be1712421399e3fb4c71edc7d6/FLAG2038a6097 [2021-07-09 16:50:43,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6d5f1f94/073ef4be1712421399e3fb4c71edc7d6 [2021-07-09 16:50:43,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:50:43,090 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:50:43,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:50:43,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:50:43,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:50:43,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d84cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43, skipping insertion in model container [2021-07-09 16:50:43,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:50:43,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:50:43,254 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i[949,962] [2021-07-09 16:50:43,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:50:43,434 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:50:43,442 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i[949,962] [2021-07-09 16:50:43,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:50:43,505 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:50:43,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43 WrapperNode [2021-07-09 16:50:43,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:50:43,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:50:43,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:50:43,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:50:43,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:50:43,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:50:43,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:50:43,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:50:43,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (1/1) ... [2021-07-09 16:50:43,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:50:43,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:50:43,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:50:43,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:50:43,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (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 [2021-07-09 16:50:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:50:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:50:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:50:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:50:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:50:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:50:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:50:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:50:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:50:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:50:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:50:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:50:43,635 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:50:43,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:50:43,871 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:50:43,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:50:43 BoogieIcfgContainer [2021-07-09 16:50:43,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:50:43,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:50:43,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:50:43,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:50:43,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:50:43" (1/3) ... [2021-07-09 16:50:43,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a1b16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:50:43, skipping insertion in model container [2021-07-09 16:50:43,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:43" (2/3) ... [2021-07-09 16:50:43,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a1b16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:50:43, skipping insertion in model container [2021-07-09 16:50:43,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:50:43" (3/3) ... [2021-07-09 16:50:43,878 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2021-07-09 16:50:43,882 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:50:43,882 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:50:43,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:50:43,883 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:50:43,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:43,915 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:50:43,933 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-09 16:50:43,944 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:50:43,944 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:50:43,944 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:50:43,945 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:50:43,945 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:50:43,945 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:50:43,945 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:50:43,945 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:50:43,951 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-07-09 16:50:44,005 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 805 states, 804 states have (on average 2.620646766169154) internal successors, (2107), 804 states have internal predecessors, (2107), 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) [2021-07-09 16:50:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 805 states, 804 states have (on average 2.620646766169154) internal successors, (2107), 804 states have internal predecessors, (2107), 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) [2021-07-09 16:50:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 16:50:44,028 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:44,028 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:44,029 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:44,035 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-07-09 16:50:44,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:44,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602243942] [2021-07-09 16:50:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:44,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:44,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602243942] [2021-07-09 16:50:44,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602243942] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:44,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:44,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:44,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411933759] [2021-07-09 16:50:44,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:44,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:44,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:44,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:44,424 INFO L87 Difference]: Start difference. First operand has 805 states, 804 states have (on average 2.620646766169154) internal successors, (2107), 804 states have internal predecessors, (2107), 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 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:44,608 INFO L93 Difference]: Finished difference Result 917 states and 2315 transitions. [2021-07-09 16:50:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:44,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-09 16:50:44,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:44,627 INFO L225 Difference]: With dead ends: 917 [2021-07-09 16:50:44,627 INFO L226 Difference]: Without dead ends: 672 [2021-07-09 16:50:44,628 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 163.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:50:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-07-09 16:50:44,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2021-07-09 16:50:44,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 671 states have (on average 2.511177347242921) internal successors, (1685), 671 states have internal predecessors, (1685), 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) [2021-07-09 16:50:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1685 transitions. [2021-07-09 16:50:44,679 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1685 transitions. Word has length 41 [2021-07-09 16:50:44,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:44,679 INFO L482 AbstractCegarLoop]: Abstraction has 672 states and 1685 transitions. [2021-07-09 16:50:44,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1685 transitions. [2021-07-09 16:50:44,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-07-09 16:50:44,682 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:44,682 INFO L508 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] [2021-07-09 16:50:44,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:50:44,683 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:44,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:44,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1221235819, now seen corresponding path program 1 times [2021-07-09 16:50:44,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:44,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122862726] [2021-07-09 16:50:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:44,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:44,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122862726] [2021-07-09 16:50:44,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122862726] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:44,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:44,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:44,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293482348] [2021-07-09 16:50:44,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:44,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:44,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:44,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:44,849 INFO L87 Difference]: Start difference. First operand 672 states and 1685 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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) [2021-07-09 16:50:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:45,161 INFO L93 Difference]: Finished difference Result 826 states and 2059 transitions. [2021-07-09 16:50:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:50:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 [2021-07-09 16:50:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:45,165 INFO L225 Difference]: With dead ends: 826 [2021-07-09 16:50:45,165 INFO L226 Difference]: Without dead ends: 686 [2021-07-09 16:50:45,166 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 317.5ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:50:45,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-07-09 16:50:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2021-07-09 16:50:45,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.5036496350364965) internal successors, (1715), 685 states have internal predecessors, (1715), 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) [2021-07-09 16:50:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1715 transitions. [2021-07-09 16:50:45,199 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1715 transitions. Word has length 43 [2021-07-09 16:50:45,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:45,200 INFO L482 AbstractCegarLoop]: Abstraction has 686 states and 1715 transitions. [2021-07-09 16:50:45,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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) [2021-07-09 16:50:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1715 transitions. [2021-07-09 16:50:45,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-07-09 16:50:45,204 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:45,204 INFO L508 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] [2021-07-09 16:50:45,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:50:45,204 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:45,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:45,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1606589287, now seen corresponding path program 1 times [2021-07-09 16:50:45,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:45,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751209994] [2021-07-09 16:50:45,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:45,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:45,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751209994] [2021-07-09 16:50:45,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751209994] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:45,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:45,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:45,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430525184] [2021-07-09 16:50:45,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:45,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:45,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:45,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:45,331 INFO L87 Difference]: Start difference. First operand 686 states and 1715 transitions. 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) [2021-07-09 16:50:45,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:45,490 INFO L93 Difference]: Finished difference Result 854 states and 2113 transitions. [2021-07-09 16:50:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:50:45,490 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 [2021-07-09 16:50:45,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:45,492 INFO L225 Difference]: With dead ends: 854 [2021-07-09 16:50:45,492 INFO L226 Difference]: Without dead ends: 462 [2021-07-09 16:50:45,493 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:50:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-07-09 16:50:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2021-07-09 16:50:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 2.3600867678958783) internal successors, (1088), 461 states have internal predecessors, (1088), 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) [2021-07-09 16:50:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1088 transitions. [2021-07-09 16:50:45,502 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1088 transitions. Word has length 44 [2021-07-09 16:50:45,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:45,502 INFO L482 AbstractCegarLoop]: Abstraction has 462 states and 1088 transitions. [2021-07-09 16:50:45,502 INFO L483 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) [2021-07-09 16:50:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1088 transitions. [2021-07-09 16:50:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 16:50:45,503 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:45,503 INFO L508 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] [2021-07-09 16:50:45,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:50:45,504 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:45,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:45,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1115548116, now seen corresponding path program 1 times [2021-07-09 16:50:45,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:45,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781345224] [2021-07-09 16:50:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:45,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:45,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781345224] [2021-07-09 16:50:45,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781345224] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:45,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:45,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:45,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388402911] [2021-07-09 16:50:45,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:45,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:45,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:45,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:45,570 INFO L87 Difference]: Start difference. First operand 462 states and 1088 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-07-09 16:50:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:45,658 INFO L93 Difference]: Finished difference Result 536 states and 1245 transitions. [2021-07-09 16:50:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-07-09 16:50:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:45,660 INFO L225 Difference]: With dead ends: 536 [2021-07-09 16:50:45,660 INFO L226 Difference]: Without dead ends: 400 [2021-07-09 16:50:45,661 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 78.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-07-09 16:50:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2021-07-09 16:50:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 2.2982456140350878) internal successors, (917), 399 states have internal predecessors, (917), 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) [2021-07-09 16:50:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 917 transitions. [2021-07-09 16:50:45,668 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 917 transitions. Word has length 46 [2021-07-09 16:50:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:45,668 INFO L482 AbstractCegarLoop]: Abstraction has 400 states and 917 transitions. [2021-07-09 16:50:45,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-07-09 16:50:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 917 transitions. [2021-07-09 16:50:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-07-09 16:50:45,669 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:45,669 INFO L508 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] [2021-07-09 16:50:45,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:50:45,670 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:45,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:45,670 INFO L82 PathProgramCache]: Analyzing trace with hash 884554647, now seen corresponding path program 1 times [2021-07-09 16:50:45,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:45,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993511010] [2021-07-09 16:50:45,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:45,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:45,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993511010] [2021-07-09 16:50:45,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993511010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:45,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:45,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:45,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075135334] [2021-07-09 16:50:45,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:45,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:45,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:45,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:45,777 INFO L87 Difference]: Start difference. First operand 400 states and 917 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:45,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:45,884 INFO L93 Difference]: Finished difference Result 367 states and 808 transitions. [2021-07-09 16:50:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:50:45,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-07-09 16:50:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:45,891 INFO L225 Difference]: With dead ends: 367 [2021-07-09 16:50:45,891 INFO L226 Difference]: Without dead ends: 271 [2021-07-09 16:50:45,892 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:50:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-07-09 16:50:45,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-07-09 16:50:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 2.1222222222222222) internal successors, (573), 270 states have internal predecessors, (573), 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) [2021-07-09 16:50:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 573 transitions. [2021-07-09 16:50:45,897 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 573 transitions. Word has length 47 [2021-07-09 16:50:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:45,897 INFO L482 AbstractCegarLoop]: Abstraction has 271 states and 573 transitions. [2021-07-09 16:50:45,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 573 transitions. [2021-07-09 16:50:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-09 16:50:45,898 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:45,899 INFO L508 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] [2021-07-09 16:50:45,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:50:45,899 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:45,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:45,899 INFO L82 PathProgramCache]: Analyzing trace with hash -438162122, now seen corresponding path program 1 times [2021-07-09 16:50:45,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:45,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558832518] [2021-07-09 16:50:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:45,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:45,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:45,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558832518] [2021-07-09 16:50:45,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558832518] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:45,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:45,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:46,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922334596] [2021-07-09 16:50:46,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:46,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:46,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:46,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:46,004 INFO L87 Difference]: Start difference. First operand 271 states and 573 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:46,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:46,053 INFO L93 Difference]: Finished difference Result 253 states and 531 transitions. [2021-07-09 16:50:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:50:46,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-07-09 16:50:46,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:46,054 INFO L225 Difference]: With dead ends: 253 [2021-07-09 16:50:46,054 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:50:46,054 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:46,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:50:46,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:50:46,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:50:46,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-07-09 16:50:46,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:46,055 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:50:46,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:46,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:50:46,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:50:46,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:50:46,057 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:50:46,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:50:46 BasicIcfg [2021-07-09 16:50:46,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:50:46,059 INFO L168 Benchmark]: Toolchain (without parser) took 2968.71 ms. Allocated memory is still 207.6 MB. Free memory was 170.0 MB in the beginning and 104.4 MB in the end (delta: 65.6 MB). Peak memory consumption was 66.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:46,059 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 207.6 MB. Free memory is still 187.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:50:46,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.34 ms. Allocated memory is still 207.6 MB. Free memory was 169.7 MB in the beginning and 182.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:46,059 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.64 ms. Allocated memory is still 207.6 MB. Free memory was 182.3 MB in the beginning and 180.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:46,060 INFO L168 Benchmark]: Boogie Preprocessor took 25.72 ms. Allocated memory is still 207.6 MB. Free memory was 180.2 MB in the beginning and 179.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:46,060 INFO L168 Benchmark]: RCFGBuilder took 298.14 ms. Allocated memory is still 207.6 MB. Free memory was 179.1 MB in the beginning and 157.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:46,060 INFO L168 Benchmark]: TraceAbstraction took 2184.37 ms. Allocated memory is still 207.6 MB. Free memory was 157.1 MB in the beginning and 104.4 MB in the end (delta: 52.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:46,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 207.6 MB. Free memory is still 187.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 413.34 ms. Allocated memory is still 207.6 MB. Free memory was 169.7 MB in the beginning and 182.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.64 ms. Allocated memory is still 207.6 MB. Free memory was 182.3 MB in the beginning and 180.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.72 ms. Allocated memory is still 207.6 MB. Free memory was 180.2 MB in the beginning and 179.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 298.14 ms. Allocated memory is still 207.6 MB. Free memory was 179.1 MB in the beginning and 157.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2184.37 ms. Allocated memory is still 207.6 MB. Free memory was 157.1 MB in the beginning and 104.4 MB in the end (delta: 52.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2112.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 31.3ms, AutomataDifference: 958.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 60.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 459 SDtfs, 591 SDslu, 1514 SDs, 0 SdLazy, 180 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 174.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 871.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=0, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 97.3ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.4ms SsaConstructionTime, 140.0ms SatisfiabilityAnalysisTime, 646.9ms InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...